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A 52-year-old man presented with a bicondylar tibial plateau fracture and acute compartment syndrome. Continuous compartment pressure monitoring was used while the patient was treated with fasciotomies and application of an external fixator. The intraoperative pressure reading in the anterior compartment decreased from 105 mm Hg to 50 mm Hg after skin and subcutaneous tissue incision. Pressure continued to decrease to 10 mm Hg after all 4 compartments were released. The patient underwent staged open reduction and internal fixation and healed both fracture and fasciotomy incisions without complication. To our knowledge, this is the first report of continuous pressure changes during the different stages of a compartment release. Future studies could expand on use of this technology to gain information on compartment pressures during release and how single release affects pressures in other compartments. [Orthopedics. 2024;47(2):e98-e101.].

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Charcot reconstruction with static external fixation provides stability in deformity correction. Concern for pin site health remains forefront to prevent premature fixator removal should infection develop. While previous investigations examined a spectrum of pin care protocol with a similar variation in outcomes, this study assesses results following a "no care pin care" routine. A retrospective analysis of patients with Charcot neuroarthropathy treated with static external fixation was performed where all pin sites were dressed using a chlorhexidine-soaked sponge without postoperative maintenance. Demographics, reconstruction-specific, and postoperative variables including pin site irritation, pin site infection, and pin tract infection were collected through frame removal. A comparison between uncomplicated and complicated pin sites was made. Statistical significance was set as p ≤ .05. Among 85 patients and their respective pin holes that posed potential spots of infection, 6 (7%) experienced pin site irritation and 5 (6%) experienced pin site infection. Moreover, 2 (2%) experienced a pin tract infection requiring removal. Out of the 768 wires/half-pins 2 (0.3%) were removed. There existed no statistically significant predictors of pin site irritation/infection other than age (p = .03). "No care pin care" proves an effective means at pin site care following static external fixation in Charcot reconstruction. Limited maintenance reduces the postoperative burden on providers and patients.

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Pin Site Infection (PSI) is the most common complication of external fixation treatment. Several classifications and diagnostic approaches have been used with reported incidences varying widely from 1 to 100 %. The quality of the existing literature is limited by the absence of a definition. This renders comparing literature and developing evidence-based algorithms for prevention, diagnostics, and treatment difficult to impossible. Similar problems were identified with prosthetic joint infection (PJI) and fracture-related infection (FRI) in recent years, resulting in new, validated definitions. PSI is complicated by the complexity of the issue. Numerous factors in PSI need consideration. Factors may be related to the patient, the surgical technique, the pin-bone interface, the pin-skin interface, the choice of external fixation device and/or the material used and its properties. Reliably diagnosing PSI is one of the most pressing issues. New definitions for FRI or PJI have diagnostic criteria which can be either confirmatory or suggestive. Any positive finding of a confirmatory criterion constitutes an infection. Although PSI resembles PJI and FRI, distinct differences are present. The skin is never closed, and bacterial colonization is inevitable along the treatment duration. The external fixator is only temporarily in place; thus, the goal of all measures is to continue the external fixator until the intended indication is reached. This paper proposes the principles of a definition of PSI. This definition is not designed to guide any treatment of PSI. Its purpose is to create common ground for clinical investigations and publishing further research.

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Bladder injury is frequently associated with complex pelvic fractures with men being the predominant population to sustain such injuries. Entrapment of the bladder through the site of pelvic fracture is a rare clinical entity. We report a case of an entrapped bladder post closed reduction and external fixation of an unstable anteroposterior compression type 3 (APC-3) fracture. This report highlights the diagnostic difficulty with identifying an entrapped bladder and the patient's functional outcome after 1 year of follow-up.

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PURPOSE: Ankle fracture-dislocations are among the most severe injuries, and the use of an external fixator as a recommended fixation method has some disadvantages. The aim of this study was to compare the clinical outcomes and complication rates of external and K-wire fixations in the treatment of ankle fracture dislocations. METHODS: A total of 67 patients with ankle fracture-dislocations requiring temporary external or percutaneous K-wire fixation were included. The exclusion criteria were pilon fractures, open fractures, and those who required acute open reduction internal fixation (ORIF). The American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, a 10-point visual analog scale (VAS) score (range 0-10), and complications before and after the definitive surgery were recorded. RESULTS: A significant difference between the two groups was not observed for age, sex, affected side, fracture type, smoking status, or diabetes. The average AOFAS scores were 83.2 and 83.3, the median VAS scores were 3 and 3, and the complication rates were 32.4% and 6.7% in the external and K-wire fixation groups, respectively (p = 0.010). However, skin necrosis, re-dislocation of the ankle, surgical wound infection, and posttraumatic ankle osteoarthritis frequency were not significantly different between the groups, except for pin-sites infection (p = 0.036). CONCLUSION: Ankle fracture-dislocations using percutaneous k-wire fixation showed a low rate of complications and favorable clinical outcomes. This method could be a good alternative treatment option for ankle fracture-dislocations.

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BACKGROUND: Fibular hemimelia (FH) represents the most common deficiency of the long bones and is associated with multiple deformities. Reconstructive treatment with external fixators in FH restores normal lower extremity alignment and length with plantigrade feet for a balanced and effective gait. The aim of this study is to evaluate the outcomes of lower limb lengthening and simultaneous tri-plane deformity correction with a computer-assisted hexagonal external fixator in children with FH. METHODS: A retrospective review was performed for FH cases treated with a computer-assisted hexagonal external fixator in a tertiary referral center. Leg length discrepancy (LLD), interphyseal angles, tibiocalcaneal distances, healing index (HI), and callus shapes were analyzed for radiologic evaluation, and the Pediatric Quality of Life Inventory (PedsQL) was used for functional assessment. Limbs with HI <50 days/cm, PedsQL >75, and without regenerate fractures were considered successful lengthenings. RESULTS: Twenty-four limbs of 23 patients were included. The limbs were lengthened for a mean of 7.24 cm (range, 4.7 to 15.6). The initial LLD of 5.6 cm (range, 0.5 to 19 cm) increased to 1.7 cm (range, 0.1 to 6 cm), and the mean interphyseal angle was 12.7 degree (range, 1.5 to 54.2 degree), tibiocalcaneal distance was 0.85 cm (range, 0.1 to 1.7) at final follow-up. The most common regenerated bone morphology was cylindrical, as seen in 11 limbs (45.8%). The average PedsQL score was 83.5 (range, 69.5 to 96.7). Sixteen limbs (66.7%) had successful lengthening at their first, and 4 limbs (80%) had successful lengthening at their second surgeries. Seven limbs had complications requiring surgical intervention (29.1%), with 3 (12.5%) regenerate fractures after external fixators removal. CONCLUSIONS: Limb reconstruction with computer-assisted hexapod fixators is a successful and reliable option for the treatment of LLD in FH, and patients demonstrate good functional outcomes. Surgeons should be aware of potential complications and should utilize prophylactic measures when necessary. LEVELS OF EVIDENCE: Level III, retrospective comparative study.

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PURPOSE: Infection at the pin site remains the most common complication of external fixators (EFs). It is known that hydroxyapatite (HA)-coated pins increase bone adhesion and may lead to reduced rates of reported infections. The present study compares the rates of pin track infection associated with stainless steel and HA-coated pins. METHODS: This is a prospective, multicenter, nonrandomized, comparative intervention study among patients undergoing surgical treatment with EFs of any type between April 2018 and October 2021. Patients were followed up until the removal of the EF, or the end of the study period (ranging from 1 to 27.6 months). The definition of pin track infection was based upon the Maz-Oxford-Nuffield (MON) pin infection grading system. RESULTS: Overall, 132 patients undergoing external fixation surgery were included. Of these, 94 (71.2%) were male, with a mean age of 36.9 years (SD ± 18.9). Infection of any type (score > 1) was observed in 63 (47.7%) patients. Coated and uncoated-pin track-infection occurred in 45.7% and 48.5% of patients, respectively (P= 0.0887). The probability of developing infection (defined as a score ≥ 2) adjusted for comorbidities and follow-up time was not statistically higher among those who received uncoated pins compared to those who received pins coated with HA (odds ratio (OR) = 1.56, 95% confidence interval (95% CI): 0.67-3.67, p <0.05). CONCLUSION: In the present study, the external fixator pin infection rates were similar when using HA coating and standard steel pins.

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PURPOSE: Reconstructive surgery for complex knee problems is limited and challenging. The aim of this study is to report the technique, outcomes and complications of circular external fixation for knee fusion in complex indications. METHODS: Retrospective review of a prospectively collected database of a complex limb reconstruction unit was done during December 2022. Patients with complex knee problems who underwent knee fusion with circular external fixator were included. RESULTS: Fourteen patients met the inclusion criteria. The mean age of the patients was 63 ± 16.8 years. Deep infection was the indication for surgery in 11 patients (78.5%), of which 10 cases were related to previously failed revision arthroplasty. The mean duration of treatment in frame was 13 ± 4.1 months, while the mean follow-up duration following frame removal was 7.1 ± 4.2 years. Fusion was achieved in 13 patients (92.9%). The most common complication was pin site infection (6; 42.9%), of which three (21.4%) required pin/wire revision. One (7.1%) patient had fracture at the fusion site following frame removal that was treated with reapplication of the frame. CONCLUSION: Knee fusion using circular external fixation is a reliable surgical option for complex knee problems especially in infected failed revision total knee replacements.

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PURPOSE: Surgical trauma may confer additional infectious risk after operative fixation for high energy tibial plateau fractures. This study aims to determine the impact of plate number and location on infection rates after these injuries. METHODS: This retrospective cohort study completed at two level one trauma centers included patients who underwent staged fixation for a tibial plateau fracture between 2015 and 2019. Plate number and location (lateral, medial, posteromedial, and anterior quadrants) used in the definitive fixation construct were collected from post-operative radiographs. Deep infection rate was primary the outcome. RESULTS: A total of 244 patients met inclusion criteria. The overall infection rate was 13.9% (34/244). Infection rates increased with each additional quadrant utilized (8.0% one quadrant, 13.0% two quadrants, 27.3% three quadrants, 100% four quadrants; p < 0.001), independent of plate number, fracture severity, operative time, number of incisions, external fixator pin and plate construct overlap, and days in the external fixator on multivariate analysis. CONCLUSIONS: Infection risk increases with each quadrant utilized in the fixation of high energy tibial plateau fractures. Providers should attempt to limit the dissection of soft tissue for hardware placement in the fixation of these injuries to limit infection risk. LEVEL OF EVIDENCE: Level III, retrospective therapeutic study.

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OBJECTIVES: To recommend appropriate immobilization after the initial reduction of acetabular displaced fractures in order to minimize the risk of heterotopic ossification formation. DESIGN: Retrospective study of patients treated in our surgical department during the years 2005-2018. MATERIALS AND METHODS: There were 94 patients included in statistical analysis. The factors of injury severity, course of surgery and hospitalization and incidence of complications were recorded. The functional and X-ray results were evaluated at least one year after surgery. RESULTS: The patients were divided into the two groups according to the type of fixation after closed reduction, the external fixation (EF) and the skeletal traction (ST) group. According to the type of fracture there were 33 patients with central displacement and 61 patients with posterior displacement. Ossification grade III. And IV. Occur in 20% of our sample. There was greater incidence of Brooker grade III. And IV. Ossification in the ST group, but statistically insignificant, p = 0.57. There was no statistically significant difference in the occurrence of ossifications regarding the severity of the head injury, p = 0.11, or to the severity of the injury p = 0.54. The combination of posterior displacement and ST results in higher risk for ossifications, specifically in our group at 11.48% compared to the combination of posterior displacement and EF where it is 8.2%. CONCLUSION: Skeletal traction for posterior displaced acetabular fracture appears to be a more risky procedure for the development of ossifications than external fixation.

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INTRODUCTION: Reconstructing long bone defects following intercalary tumor resection presents an exciting challenge with a greater range of surgical solutions than more typical situations requiring arthroplasty. Segmental bone transport (distraction osteogenesis) is the least utilized option for intercalary reconstruction; however, it arguably provides patients with the most desirable result. Distraction osteogenesis can be used in the management of multiple skeletal conditions including deformity (congenital or acquired), or in the presence of bone defects (by trauma or planned surgical excision). Lack of broader adoption of transport is likely due to the highly technical demands and common complications of utilizing fine-wire fixators via the Ilizarov method. More recently, internal lengthening nails such as the PRECICE nail have been employed to facilitate distraction osteogenesis without the added complexity of external fixation. AREAS COVERED: This review will examine the literature on the indications, design, and safety of the PRECICE nail (NuVasive) for intercalary reconstruction after tumor resection. EXPERT OPINION: Bone transport using the PRECICE nail represents a viable alternative to Ilizarov distraction and has the benefit of avoiding the complications of an external fixator. For large defects, the PRECICE nail can be supplemented with a locking plate for additional stability and maintenance of limb length.

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INTRODUCTION: Acute tibial fracture-related infection (FRI) is one of the most feared and challenging complications after a tibial fracture. The most appropriate treatment in this scenario is far from a resolved topic. Circular external fixators (CEFs) offer multiplanar control and minimize soft tissue injury using temporary implants far from the infected area. This study aimed to investigate the outcomes of two different types of CEFs (Ilizarov and hexapod) in the treatment of a series of acute tibial FRIs. MATERIAL AND METHODS: A retrospective study at two specialized limb reconstruction centres identified all patients with an acute tibial FRI (≤4 weeks after index procedure) definitively treated with a CEF from January 2015 to December 2020. PRIMARY OUTCOMES: fracture healing and infection eradication rate with a minimum FU of 12 months after frame removal. SECONDARY OUTCOMES: to investigate the differences between the two types of circular frames regarding final post-treatment deformity magnitude. RESULTS: We included 31 patients with acute tibial FRIs: 18 treated with hexapod-type and 13 with Ilizarov-type CEFs. Average age was 45.5±16.56 years. Fracture healing and infection eradication were achieved in all patients (31/31) after a mean follow-up of 24.7 months (range 12.1-55.3). Patients treated with an Ilizarov-type fixator presented shorter time to fracture union (5.5±2.2 months vs. 9.2±6.0 months; p-value 0.021) and shorter duration of external fixation (p-value 0.001). Regarding residual post-treatment deformity, the hexapod system presented significantly less residual coronal translation deformity (p-value 0.034) and better callus quality. Fixator-related complications were similar when comparing the two groups. No significant differences were seen in pain (p-value 0.25), RTW rate (35% vs. 45%; p-value 0.7) or functionality (p-value 0.4). CONCLUSIONS: Definitive circular external fixation is an excellent treatment for acute tibial FRI. Both Ilizarov and hexapod systems offer a very high rate of fracture healing and infection eradication. Although both presented very low radiological post-operative residual deformity, the hexapod system showed less residual coronal translation deformity and better callus quality.

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OBJECTIVE: To evaluate the feasibility and utility of computer-aided design (CAD) in surgical treatment of leg length discrepancy (LLD) using monorail external fixators. METHODS: In the present case series, we retrospectively analyzed seven patients diagnosed with LLD who were surgically treated using a monorail external fixator between June 2018 and August 2020. A personalized surgical emulation of each patient was designed using CAD based on preoperative CT scans to measure limb parameters. Through reverse engineering, a surgical guide plate was then designed to assist with correcting the limb deformity. Patient general information and clinical history, leg length, mechanical lateral distal femoral angle (mLDFA), anatomical anterior distal tibial angle (aADTA), and surgical parameters were recorded during the perioperative period. Three months after external fixator removal, distraction-consolidation time (DCT), healing index (HI), and lower extremity function score (LEFS) were calculated, and statistically analyzed by paired T-test. RESULTS: The mean limb lengthening achieved was 6.41 ± 2.54 (range, 3.30-10.54) cm with either varus or valgus correction. The mean operative duration was 151 ± 41.87 (84-217) minutes and mean blood loss was 53.58 ± 22.51(25-87) ml. The mean distraction-consolidation time was 3.67 ± 1.13 (range, 2.5-6.0) months and mean external fixator duration was 11 ± 2.45 (range, 8-14) months. The mean healing index (HI) was 18.11 ± 3.58 (range, 12.8-22.7) days/cm. Mean LEFS scores improved postoperatively from 32.17 ± 8.57 (range, 24-45) to 61.17 ± 6.68 (range, 50-67) with a significant difference (T = -14.26,P < 0.001). CONCLUSIONS: Simultaneous length and angular correction can be achieved by incorporating CAD into the surgical treatment of patients with LLD, without compromising postoperative lower limb function. CAD demonstrates utility in the surgical treatment of LLD by improving the functionality of monorail external fixators.

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Purpose: To investigate infection risk factors after secondary internal fixation (IF) of open fracture of a long bone with removed fixation frame and explore the safe range of feasible operation for abnormal inflammatory indicators. Methods: Clinical data of 117 cases of open fracture of a long bone that underwent temporary external fixation (EF) in one stage and IF in two stages were retrospectively analyzed. Collected data included age, sex, Gustilo type, multiple injuries, debridement time, duration of EF, needle infection, interval of conversion to IF after external fixator, preoperative white blood cell (WBC), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), albumin (ALB), blood glucose, and prognosis. We selected these factors for univariate analysis of postoperative surgical site infection (SSI) and multivariate logistic regression analysis of statistically significant risk factors and created receiver operating characteristic (ROC) curves to compare the diagnostic efficiency of each index and determine the optimal screening point. Results: We followed up 117 patients, with 130 limbs affected. Univariate analysis showed that ESR, CRP, ALB, WBC, EF time, and Gustilo fracture type were significantly associated with SSI. Multivariate logistic regression analysis showed that CRP, duration of EF, and Gustilo fracture type were independently associated with postoperative infection. Area under ROC curves for WBC, ESR, and CRP were 69.7%, 73.2%, and 81.2%. Conclusions: We demonstrated the role of Gustilo classification of open fractures in predicting postoperative infection, especially for open fractures above type III. If the inflammatory indexes return to normal or show a downward trend, and the second-stage IF operation is performed within the cutoff values, postoperative recurrent infection was reduced.

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BACKGROUND: In patients with knee infection, arthrodesis by external fixation is a limb-salvage procedure appropriate in highly selected patients. No hardware that might lead to infection is left in situ. However, the fusion rate is limited. Use of a device that applies compression in the coronal plane has been suggested in combination with sagittal external fixation to increase the fusion rate but has not been the focus of published studies. The objectives of this retrospective study were to determine: 1) the fusion rate and, 2) the rate of infection eradication. HYPOTHESIS: Knee arthrodesis using an external fixator and a compression clamp provides higher fusion rates compared to reports of external fixation without compression. MATERIAL AND METHODS: We retrospectively studied 30 patients who underwent knee arthrodesis using external fixation and a compression clamp. The reason for arthrodesis was recurrent infection after total knee arthroplasty in 18 patients and septic arthritis in 12 patients. There were 16 females and 14 males with a mean age of 66.0±11.6 years (range, 30-83 years). Mean follow-up was 42.5±23.6 months (range, 24-106 months). RESULTS: Fusion was achieved in 25 (83%) patients, after a mean of 7.5 months (range, 6-12 months). Of the 8 patients with severe bone loss (≤25% bone contact), 4 experienced non-union, compared to 1 of the 22 patients whose bone loss was moderate or mild (50% and >50% bone contact, respectively) (p=0.01). After at least 2 years of follow-up, the infection was eradicated in 28 (93%) patients. Complications occurred in 9 patients and consisted of pin-site infection managed by lavage (n=3), recurrent infection requiring revision surgery for debridement and lavage combined with material exchange and antibiotic therapy (n=2), and femoral shaft fracture (n=3) or traumatic fracture of the arthrodesis (n=1) treated by changing the clamp and fixator assembly. DISCUSSION: The fusion rate achieved using this combined technique is high and better than obtained with external fixation alone. Our results confirm that infection eradication is obtained more often than with nailing. This one-stage, simple, reproducible procedure does not leave any foreign material in situ. LEVEL OF EVIDENCE: IV, retrospective observational cohort study.

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OBJECTIVE: The aim: To analyse long-term results of treating patients with open fractures of low-leg bones within a specific time period and to describe concomitant problems. PATIENTS AND METHODS: Materials and methods: A retrospective study was carried out to evaluate the results of the final treatment of patients after one year and after five years. Patients were divided into two groups. Group I included 47 (61.84%) patients for whom the treatment method was changed from external fixation to internal fixation. Group II included 29 (38.16%) patients for whom the final treatment of an open fracture was performed with an external fixation device without changing the method. The study exclusion criteria were patients under 18 years old and patients with gunshot fractures of the lower leg bones. RESULTS: Results: Patient treatment included initial surgical debridement and fracture stabilization with external fixation devices. In all patients, wound healing occurred within 30 days (on average, 24 ± 4.5 days). When evaluating the treatment of patients in group I, 32 (68.09%) of them underwent a one-stage removal of an external fixation device and osteosynthesis of fragments during the first 7-10 days. In 3 (20.0%) patients, osteosynthesis was performed with an intramedullary locking nail, in 12 (80.0%) patients - with a plate. The decision to change the fixation method was made taking into account clinical and laboratory parameters. It is noted that the treatment of patients with type III open fractures of the lower leg bones according to the Gustilo-Andersen classification, provided that the method of external fixation is replaced with an internal one, gives better results compared to osteosynthesis with external fixation devices. CONCLUSION: Conclusions: Treatment of patients with high-energy injuries of the lower leg bones is a long-term process. It is possible to improve the therapy efficiency by changing the fixation method from external to internal one. In this regard, the main evaluative characteristics are such indicators as uncomplicated wound healing combined with the absence of laboratory and clinical signs of inflammation.

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BACKGROUND: Many patients with achondroplasia experience functional impairments because of rhizomelic upper extremities (proximal limb shortening). Bilateral humeral lengthening may overcome these functional limitations, but it is associated with several risks, such as radial nerve palsy and insufficient bone regeneration. Only a few studies have reported on patient satisfaction and functional outcome after humeral lengthening in patients with achondroplasia. Furthermore, the reported numbers of adverse events associated with lengthening procedures using external fixators vary widely. QUESTIONS/PURPOSES: (1) Does bilateral humeral lengthening with a monolateral external fixator in patients with achondroplasia reliably improve patient function and autonomy, and what proportion of patients achieved at least 8 cm of humeral lengthening? (2) What adverse events occur after bilateral humeral lengthening with monolateral external fixators? METHODS: Between 2011 and 2019, 44 patients underwent humeral lengthening at our institution. Humeral lengthening was performed in patients with severe shortening of the upper extremities and functional impairments. In humeri in which intramedullary devices were not applicable, lengthening was performed with monolateral external fixators in 40 patients. Eight patients were excluded because they underwent unilateral lengthening for etiologies other than achondroplasia, and another four patients did not fulfill the minimum study follow-up period of 2 years, leaving 28 patients with bilateral humeral lengthening to treat achondroplasia available for analysis in this retrospective study. The patients had a median (interquartile range) age of 8 years (8 to 10), and 50% (14 of 28) were girls. The median follow-up time was 6 years (4 to 8). The median humeral lengthening was 9 cm (9 to 10) with a median elongation of 73% (67% to 78%) from an initial median length of 12 cm (11 to 13). To determine whether this treatment reliably improved patient function and autonomy, surgeons retrospectively evaluated patient charts. An unvalidated retrospective patient-reported outcome measure questionnaire consisting of nine items (with answers of "yes" or "no" or a 5-point Likert scale) was administered to assess the patient's functional improvement in activities of daily living, physical appearance, and overall satisfaction, such that 45 points was the highest possible score. The radiographic outcome was assessed on calibrated radiographs of the humerus. To ascertain the proportion of adverse events, study surgeons performed a chart review and telephone interviews. Major complications were defined as events that resulted in unplanned revision surgery, nerve injury (either temporary or permanent), refracture of the bone regenerate, or permanent functional sequelae. Minor complications were characterized as events that resolved without further surgical interventions. RESULTS: On our unvalidated assessment of patient function and independence, all patients reported improvement at their most recent follow-up compared with scores obtained before treatment (median [IQR] 24 [16 to 28] before surgery versus 44 [42 to 45] at latest follow-up, difference of medians 20 points, p < 0.001). A total of 89% (25 of 28) of patients achieved the desired 8 cm of lengthening in both arms. A total of 50% (14 of 28) of our patients experienced a major complication. Specifically, 39% (11 of 28) had an unplanned reoperation, 39% (11 of 28) had a radial nerve palsy, 18% (5 of 28) had a refracture of the regenerate, and 4% (1 of 28) concluded treatment with a severe limb length discrepancy. In addition, 82% (23 of 28) of our patients experienced minor complications that resolved without further surgery and did not involve radial nerve symptoms. Radial nerve palsy was observed immediately postoperatively in eight of 13 segments, and 1 to 7 days postoperatively in five of 13 segments. The treatment goal was not achieved because of radial nerve palsy in 5% (3 of 56) of lengthened segments, which occurred in 7% (2 of 28) of patients. Full functional recovery of the radial nerve was observed in all patients after a median (IQR) of 3 months (2 to 5). Refractures of bone regenerates were observed in 11% (6 of 56) of humeri in 18% (5 of 28) of patients. Of those refractures, 1 of 6 patients was treated nonsurgically with a hanging cast, while 5 of 6 patients underwent revision surgery with intramedullary rodding. CONCLUSION: Most patients with achondroplasia who underwent humeral lengthening achieved the treatment goal without permanent sequelae; nonetheless, complications of treatment were common, and the road to recovery was long and often complicated, with many patients experiencing problems that were either painful (such as refracture) or bothersome (such as temporary radial nerve palsy). However, using a subjective scale, patients seemed improved after treatment; nevertheless, robust outcomes tools are not available for this condition, and so we must interpret that finding with caution. Considering our discoveries, bilateral humeral lengthening with a monolateral external fixator should only be considered in patients with severe functional impairments because of rhizomelic shortening of the upper extremities. If feasible, internal lengthening devices might be preferable, as these are generally associated with higher patient comfort and decreased complication rates compared with external fixators. LEVEL OF EVIDENCE: Level IV, therapeutic study.

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Despite success of the Ponseti method, a subset of patients with clubfeet experience residual deformity. Surgical release after unsuccessful serial casting can lead to residual clubfoot deformities, including a flat-top talus. We present a case of a 17-year-old boy with a dysmorphic ankle and a complete dorsal dislocation of the Chopart joint. Because of pain with activities and functional limitations, the patient underwent a staged correction of the dislocation. The deformity was corrected through a staged approach using a Taylor Spatial Frame, navicular excision, talocuneiform arthrodesis, and calcaneocuboid arthrodesis. One year postoperatively, the patient is pain free with notable functional gains.

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PURPOSE: The aim of this study is to investigate the outcome of these limb-threatening injuries through external fixation treatment and to discuss the case of patients' functional recovery after external fixation. METHODS: Demographics, surgical treatment and outcomes in 88 patients with lower leg arterial injuries treated by external fixation at two trauma centers from 2009 to 2018 were reviewed. The primary outcome was the rate of successful lower leg salvage, while secondary outcomes were complications and functional recovery. RESULTS: Eighty-eight patients were identified and 80 patients (90 legs) maintained a successful lower leg salvage. The mean age was 32.7 ± 10.8 years, and 81.8% were male. The primary outcomes included the following complications: pin-tract infection (8 legs), pins loosening (4 pins), wound superficial infection (7 legs), deep infection developed osteomyelitis (3 legs), bone nonunion or bone defect (17 legs) and amputation (8 legs). The average healing time of fracture was 5.6 ± 4.3 months. The maintain of external fixation average time was 5.8 ± 3.6 months. The improvement of scores of the pain, function and quality of life in our follow-up was statistically significant. CONCLUSION: For the lower extremity fracture patients with vascular injuries, using external fixation correctly can improve clinical outcomes and produce the improvement of pain, function and the quality of life. LEVEL OF EVIDENCE: Retrospective cohort, level IV.

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