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Background: Paediatric femoral shaft fractures can be managed with single- or double-leg hip spica casting between ages six-months and six-years. The aim of this review was to determine if single-leg hip spicas reduce the impact on family life without compromising fracture stability. Methods: The study was registered on PROSPERO (CRD42023454309). MEDLINE, Embase, Web of Science, Cochrane Library, and clinical trial registers were searched to May 2023 for level I-III evidence. Primary outcomes were impact on family life and fracture stability. Where appropriate, Meta-analysis was completed using RevMan v5.4. Risk of bias was assessed using RoB 2.0 (RCTs) and ROBINS-I (non-RCTs). Certainty of evidence was measured with GRADE. Results: From 234 identified papers, four met the inclusion criteria (two RCTs; two non-RCTs). A total of 339 children were included (single-leg spica: 176; double-leg spica: 163). Three studies were 'high risk' and one study 'moderate risk' of bias. Impact on family life parameters were too heterogenous for pooled meta-analysis. Non-pooled data identified significantly more missed work days in the double-leg spica group and the 'Impact on Family' Scale significantly favoured single-leg spicas. For fracture stability, meta-analysis identified that (i) mal-union rates were significantly lower in single-leg spica: OR 0.08 (95 % CI 0.01 to 0.69; p = 0.02); (ii) MUA in theatre was not significantly different: OR 0.97 (95 % CI 0.19 to 4.86; p = 0.97); and (iii) wedge adjustment was not significantly different: OR 3.46 (95 % CI 0.48 to 24.92; p = 0.22). Certainty of evidence was assessed as 'very low'. Conclusion: Single-leg hip spicas may be associated with reduced impact on family life without compromising fracture stability compared with double-leg hip spicas. However, the evidence is weak. Therefore, a propensity score matched observational study is required to understand if subgroups of patients (age, fracture pattern, mechanism of injury) would benefit from a single- or double-leg hip spica.

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Purpose: The purpose of this study was to determine the incidence and trends of both hip spica casting and elastic stable intramedullary nailing in children aged 2-12 years who sustained femoral diaphyseal fracture between 1998 and 2016 in Finland. We also evaluated the actual hospital costs of both treatment methods as well as calculating the length of hospital stay. Methods: This study included all 2- to 12-year-old children with femoral diaphyseal fracture who were treated in Finland between 1998 and 2016. Data were collected from the National Hospital Discharge Register of Finland. Children were classified by age into five groups. The annual incidences per 100,000 persons were calculated using annual mid-year population census data obtained from Statistics Finland. Data on the annual actual daily hospital costs were collected from the Finnish Institute for Health and Welfare. Results: In total, 1064 patients aged 2-12 years who had sustained femoral diaphyseal fracture were treated with elastic stable intramedullary nailing or hip spica casting between 1998 and 2016. In children aged 4-5 years, the incidence of elastic stable intramedullary nailing increased during the study period from 5.4 per 100,000 persons in 1998 to 8.1 per 100,000 persons in 2016. Conclusions: The length of hospitalization in patients treated with elastic stable intramedullary nailing was shorter and, therefore, the total costs of hospital treatment were lower than in those children treated with hip spica cast. Level of evidence: level III.

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INTRODUCTION: Femoral shaft fractures significantly impact children and families, posing a significant challenge for pediatric patients. The prevalence of limb shortening in femur shaft fractures treated with hip spica casting in our group, however, has not been the subject of many recent investigations. AIMS: By comparing the prevalence of limb shortening to various age groups and common pediatric injury patterns, this research seeks to close this information gap. METHODS: This research, which lasted six months and was done at the Orthopedics Unit of Khyber Teaching Hospital Peshawar, Pakistan, included 129 children with closed femur shaft fractures who were between the ages of one and six. Clinical assessments, radiological examinations, and hip spica casting, all supervised by experienced orthopedic surgeons, were carried out. Senior postgraduate trainees oversaw the study's findings. RESULTS: The results unveiled key insights into the study population. Among the findings, 33% (n=43) of the children were aged one to three years, while 67% (n=86) fell within the three to six years age range. Gender distribution revealed that 72% (n= 93) were male. In terms of mechanism, 22% (n=28) of fractures were attributed to road traffic accidents, 69% (n=89) were the result of falls, and 5% (n=12) were due to other causes. Notably, 19% (n=29) of the children exhibited limb shortening. CONCLUSION: This study contributes significantly to the understanding of femur shaft fractures in children, shedding light on their complex dynamics. The study enhances our understanding of pediatric femur shaft fractures. We found that 19% of children exhibited limb shortening, underscoring the need for targeted treatment strategies. These insights can significantly improve patient care and treatment protocols for this challenging condition, benefiting both children and their families.

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Introduction: Hip spica is a widely used treatment modality in the management of various paediatric orthopaedic conditions. A standardized hip spica table is not universally available and various centerres have devised their own designs. In collaboration with the local engineering team, we have designed a light weight yet sturdy, economical and portable hip spica table. Materials and Methods: Components of the spica table and their measurements are described. Technique of mounting and unmounting the patient off the table has been discussed. We have applied the hip spica using the current design in 141 children between 2009 and 2023. The same table has been used for the children aged 6 months to 10 years. We have not experienced any table breakage during spica application. The acrylic sheet was changed only once during the study period due to attrition. Conclusion: Our design has been used successfully at our center for more than 14 years. It is simple, economical, portable and durable. It can be used in dedicated pediatric orthopedic centers and can be carried easily to the field hospitals. Supplementary Information: The online version contains supplementary material available at 10.1007/s43465-023-00935-1.

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INTRODUCTION: The management of paediatric femoral shaft fractures is expensive and is guided by age and fracture characteristics. The primary aim of this study was to perform a cost evaluation for managing paediatric femoral shaft fractures. The secondary aim of this study was to perform and compare costs of the different techniques of managing paediatric femoral shaft fractures. METHODS: Ninety-eight femoral shaft fractures in children aged ≤16 were identified between 01/06/2014-30/06/2019. Retrospective data of clinical complications were obtained on infection, malunion and non-union. Data on additional intervention, reoperations for complications and routine removal of metal work were obtained. Costing analysis was performed by a bottom-up calculation, and gathering Patient Level Information and Costing System (PLICS) data. RESULTS: There were 41 hip spica casting (HSC), 21 flexible intramedullary nailing (FIN), 14 submuscular plating (SMP), 19 rigid intramedullary nailing (RIN) and 3 external fixation (EF). Complications observed were HSC 3(7%); FIN 8(38%); SMP 2(14%); RIN 1(5%); EF 2(67%). The total costs for managing femoral shaft fractures were £8,955pp the costs for the different managements were; HSC £3,442pp; FIN £7,739pp; SMP £6,953pp; RIN £8,925pp; EF £19,116pp. The additional costs incurred for managing complications and routine removal of metal work for the internal fixation methods were: HSC 0.7%, FIN 23.7%, SMP 16.3%, RIN 10.9%, EF 28.1%. CONCLUSION: The operative management of paediatric femoral shaft fractures is associated with a high cost burden and this study demonstrates how financial data can be used to influence clinical management strategy. RIN carry a high initial implant cost however when considering the additional costs, such as treating complications it remains comparable to other modes of fixation. Our cost analysis did not demonstrate a significant difference between FIN, SMP and RIN. Due to the clinical complications observed and associated additional costs, we have discontinued the routine use of FIN for femoral shaft fractures at our centre. We recognise other centres may have a different complication and cost profile for each technique, but recommend they evaluate their practice given the potential economic benefit it has on the service provider.

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Purpose: Decisions for postoperative immobilization after bony hip reconstructive surgery in cerebral palsy are controversial in current practice. The aim of this study was to check if choosing not to use any kind of postoperative immobilization is a safe practice. Methods: A retrospective cohort study was conducted in a pediatric orthopedic tertiary referral center. The study included 148 patients (228 hips) with cerebral palsy, who had bony hip surgery. Medical records were reviewed for incidence of complications, methods of pain control, and length of hospital stay. Three radiographic measures (neck-shaft angle, Reimers migration index, and acetabular index) were performed on preoperative and postoperative X-rays. X-rays were also checked for mechanical failure of implant, recurrent dislocation/subluxation, and fractures in the first 6 months postoperatively. Results: In total, 94 (64%) were male and 54 (36%) were female. Seventy-seven (52%) were Gross Motor Function Classification System V, mean age at surgery was 8.6 years (2.5-18.4 years). Length of hospital stay was 6.25 days (SD 4.64 days). Medical complications that may have prolonged hospital stay occurred in 41 patients (27.7%). Radiological measurements showed significant improvement postoperatively (p = 0.001). Seven patients (4.7%) had another surgery in first 6 months (three for recurrent dislocation/subluxation, three for implant failure, and one for ipsilateral femur fracture). Conclusion: Avoiding postoperative immobilization following bony hip surgery in cerebral palsy is a safe practice and associated with reduced rate of medical and mechanical problems compared to the current literature. This approach should be utilized with optimal pain and tone management.

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Background: Supracondylar femoral fractures (SFFs) are uncommon in children but can cause several abnormalities. Although several methods have been employed to treat these fractures, no accepted standard has been established. Objectives: To investigate the clinical and radiographic outcomes of displaced SFFs treated with Kirschner wires (K-wires) and hip spica casts in children aged 4-10 years. Methods: We retrospectively reviewed 22 displaced SFFs (mean age, 6.7 years; range, 4-10 years) in patients who underwent surgical treatment with K-wires and hip spica casts. The patients were followed-up frequently, radiographically and clinically between January 2014 and February 2019. Postoperative healing and functional results were elevated according to the radiographic and clinical measures. Results: Fifteen boys and seven girls were included in this study. All patients except two (91%), underwent closed reduction and stabilization of the fractures. The mean follow-up duration was four years (range, 2-5 years). All fractures showed clinical and radiological evidence of union 4-8 weeks after surgery. At the most recent check-up, all patients reported being pain-free and had returned to normal activities. The mean Knee Society Score was 95.41 at the final follow-up. According to the radiologic criteria, 18 of the 22 patients (81.8%) obtained excellent results, 3 (13.6%) had good results, 1 (4.5%) had a fair result, and none had poor results. Conclusion: Satisfactory clinical and radiological results can be expected in children aged 4-10 years using a combination of K-wires and hip spica cast fixation.

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BACKGROUND: Femoral shaft fractures in children are a significant concern. Early hip spica casting is a treatment modality, but its functional outcomes need thorough evaluation. The objective of the study is to assess the functional outcomes of early hip spica management for femoral shaft fractures in children up to 5 years. METHODS: A prospective observational study was conducted at Ayub Teaching Hospital from 15 January 2022 to 26 December 2022. Sixty-two children diagnosed with femoral shaft fractures and treated with early hip spica were enrolled. Exclusion criteria were defined. Functional outcomes, including limb shortening, malunion, skin breakdown, foot drop, and compartment syndrome, were evaluated. Follow-ups were scheduled at 6 weeks, 12 weeks, and 6 months. Data analysis was performed using SPSS software package 25. RESULTS: Of the 45 patients analyzed, 75.56% were males. The average age was 3.56 years. Most fractures were proximal (75.55%) and resulted from motor vehicle accidents (66.67%). Limb shortening was observed in 17.77% of patients, with no significant correlation with age or fracture type. Malunion was rare (1%), and no skin breakdown, foot drop, or compartment syndrome cases were reported. CONCLUSIONS: Early hip spica casting for femoral shaft fractures in children up to 5 years is associated with minimal complications. The findings can guide clinical decisions and patient counselling.

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Objectives Currently, there is no standardized protocol for postoperative immobilization techniques in patients with cerebral palsy undergoing hip reconstructive procedures. The purpose of this study was to evaluate the effects of several methods of postoperative immobilization and to determine which postoperative immobilization technique has the fewest complications. Materials and methods A retrospective cohort study of pediatric patients with cerebral palsy who underwent hip reconstructive procedures, in which a hip spica cast, Petrie cast, or abduction pillow was placed for postoperative hip immobilization, was conducted. Patients who underwent revision surgery and those without cerebral palsy were excluded from the analysis. The final cohort consisted of 70 cases. Demographics, laterality of surgery, procedure type, hip immobilization technique, and 30-day postoperative complications were recorded. Complications were defined as those related to casting immobilization, such as re-dislocation or loss of surgical fixation, and soft tissue complications, such as pressure ulcers or any superficial or deep wound infection. Results Of the 70 patients, 27 received spica casting, 28 received Petrie casting, and 15 received an abduction pillow. The complication rates, as defined in the methods section, were 14.8% for the spica cast group, 17.9% for Petrie cast, and 26.7% for abduction pillow. There was no significant difference in complication rates among spica cast, Petrie cast, or abduction pillow groups (P=0.76). Conclusions There was no significant difference in length of stay, pain control duration, or complication rates among the three methods of immobilization. Clinicians should be advised of the comparable outcomes among the postoperative immobilization techniques.

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Objectives Currently, very little literature exists regarding the "fifth vital sign" in pediatric orthopedics, pain. Multiple studies have highlighted the utility of non-narcotic pain medications in treating acute pain. The objective of this study is to determine the type and amount of pain medication(s) administered and subsequently prescribed to pediatric patients ages six months to five years old with femur fractures treated with spica casting in the ER (emergency room) and OR (operative room). We also determined the incidence of spica cast change necessary for the two groups as a secondary outcome. Methods A retrospective review was completed at a single level 1 pediatric trauma center, evaluating 82 patients who met the inclusion criteria between six months to five years of age with isolated femoral shaft fractures requiring intervention at one institution. Descriptive statistics and Wilcoxon Rank-Sum or Fisher'sFisher's Exact test were used to assess differences between OR and ER groups for either continuous or categorical variables, respectively. The electronic medical record was then queried for demographic information, location of spica cast placement, hours in the hospital, and amount and type of analgesic medications administered and prescribed. Results Overall, we noted a preponderance of femur fractures in young males (72%), with the mean age of our cohort being 2.3 years old. Our patients spent a median of 20.9 hours in the hospital and had a median worst pain score of 7/10 during their hospital stay. No difference was found between standardized amounts of morphine equivalent administration between groups in the hospital. Upon discharge from the hospital, most patients received opioid and acetaminophen prescriptions (72% and 83%), but few received an ibuprofen prescription (24.4%). More spica casts placed in the ER needed to be revised in the OR compared to spica casts placed in the OR (57% vs. 8%, p<0.01). Conclusions There are various medication regimens for patients with femoral shaft fractures treated with spica casting at one institution. Our study revealed that patients received more prescription opioids if treated in the OR. Additionally, spica casting in the ER did not significantly decrease hospital stay, and it significantly increased the risk of needing a reduction in the OR in our institution.

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Background: Care of the child after hip-spica application is the most challenging issue faced by parents. Reduced mobility and recumbency can cause respiratory problems, skin irritation and discomfort for the child. Parents need to lift the child in a spica to make him upright and to mobilize. To improve the comfort of the family in post spica care, we have designed a 'Hip Spica Stroller' which is low profile, comfortable, easy to construct and relatively inexpensive. This manuscript discusses our early experience with this hip-spica stroller use. Methods: A sturdy, relatively lightweight and portable stroller was designed in collaboration with local mechanical engineering team. The stroller allowed safe upright placement of the child with spica and their easy mobility. From the second post-operative day, children were mobilised in the stroller. We looked for development of any complications related to the stroller such as spica breakage, skin irritation or excoriation development. Parents were also inquired about their feedback and satisfaction with the device upon spica removal. Results: We used the spica stroller in nine patients after Developmental Dysplasia Hip (DDH) treatment and in eight patients post shaft femur fracture treatment. None of the patients experienced any stroller-related complications. All the patients maintained the joint reduction and the fractured bone fragment alignment. High satisfaction rates were reported by parents. Conclusion: Hip Spica Stroller is an innovative and easy-to-make device which would enhance the post spica care. It can aid alleviating the fear of parents for their child's hip-spica treatment. Supplementary Information: The online version contains supplementary material available at 10.1007/s43465-021-00568-2.

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Proximal femur fractures are rare pediatric injuries associated with high energy trauma as well as polytrauma. Injuries during childhood can cause a significant disability in some cases. The four Delbet classifications of femur fractures are frequently used as prognostic for potential avascular necrosis. Necessary treatment is urgent and needs to be tailored to the fracture type and patient age. This case report presents the detailed history, examination, and treatment of a six-year-old girl with an uncommon site of pediatric fracture at the femoral neck combined with an ipselateral displaced talus fracture due to a fall from the second floor. Talus fracture was missed and discovered in operation room; however, both fractures are highly associated with avascular necrosis and post-traumatic arthritis. The patient was followed for two years on regular basis after the initial operation with a normal gait, full range of motion, and no active complain.

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AIMS: To determine the likelihood of achieving a successful closed reduction (CR) of a dislocated hip in developmental dysplasia of the hip (DDH) after failed Pavlik harness treatment We report the rate of avascular necrosis (AVN) and the need for further surgical procedures. METHODS: Data was obtained from the Northern Ireland DDH database. All children who underwent an attempted closed reduction between 2011 and 2016 were identified. Children with a dislocated hip that failed Pavlik harness treatment were included in the study. Successful closed reduction was defined as a hip that reduced in theatre and remained reduced. Most recent imaging was assessed for the presence of AVN using the Kalamchi and MacEwen classification. RESULTS: There were 644 dislocated hips in 543 patients initially treated in Pavlik harness. In all, 67 hips failed Pavlik harness treatment and proceeded to arthrogram (CR) under general anaesthetic at an average age of 180 days. The number of hips that were deemed reduced in theatre was 46 of the 67 (69%). A total of 11 hips re-dislocated and underwent open reduction, giving a true successful CR rate of 52%. For the total cohort of 67 hips that went to theatre for arthrogram and attempted CR, five (7%) developed clinically significant AVN at an average follow-up of four years and one month, while none of the 35 hips whose reduction was truly successful developed clinically significant AVN. CONCLUSION: The likelihood of a successful closed reduction of a dislocated hip in the Northern Ireland population, which has failed Pavlik harness treatment, is 52% with a clinically significant AVN rate of 7%. As such, we continue to advocate closed reduction under general anaesthetic for the hip that has failed Pavlik harness. Cite this article: Bone Jt Open 2021;2(8):584-588.

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BACKGROUND AND OBJECTIVE: Posterolateral hemivertebrectomy with monosegmental instrumentation at an early age is an established method to correct congenital scoliosis but is associated with a relatively high risk of instrumentation failure and health-related quality of life outcomes are not available. We aimed to investigate the effects hemivertebrectomy with postoperative hip spica cast on complications and health-related quality of life in small children with congenital scoliosis. METHODS: A follow-up study of 30 children (at mean age = 3.4 years, range = 1.0-8.5 years) undergoing posterolateral hemivertebrectomy and short pedicle instrumentation. Children were immobilized postoperative with hip spica cast for 6 weeks and immobilization for 4 months using a rigid thoracolumbosacral orthosis. The Caregivers filled out Scoliosis Research Society 24 outcome questionnaire preoperatively, at 6 months, and at final follow-up visit on behalf of their child. Standing radiographs were obtained preoperatively, postoperatively in the cast, and standing at final follow-up. RESULTS: Mean major curve was 41° (range = 26°-87°) preoperatively and was corrected to 14° (4.0°-35°) at final follow-up. Eight (27%) children had postoperative complications, including three (10%) deep surgical site infections. The Scoliosis Research Society 24 back domain showed an improvement from a mean of 3.8 preoperatively to 4.4 at final follow-up (p < 0.001). Function from back condition domain showed a significant deterioration from 4.2 preoperatively to 3.7 at 6 months (p = 0.020) but improved back to baseline at final follow-up (4.2, p = 0.0022 6 months vs final follow-up). CONCLUSIONS: Hemivertebrectomy with short instrumentation resulted into 64% correction of scoliosis and improved health-related quality of life in back pain and function domains.

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INTRODUCTION: Hip spica casting is a standard treatment for children with femur fractures. This study compares the outcomes of spica cast application, in terms of quality of fracture reduction and hospital charges when performed in operating theatre versus outpatient clinics at a local institution. MATERIALS AND METHODS: A total of 93 paediatric patients, aged between 2 months to 8 years, who underwent spica casting for an isolated femur fracture between January 2008 and March 2019, were identified retrospectively. They were separated into inpatient or outpatient cohort based on the location of spica cast application. Five patients with metaphyseal fractures and four with un-displaced fractures were excluded. There were 13 and 71 patients in the outpatient and inpatient cohort respectively who underwent spica casting for their diaphyseal and displaced femur fractures. Variables between cohorts were compared. RESULTS: There were no significant differences in gender, fracture pattern, and mechanism of injury between cohorts. Spica casting as inpatients delayed the time from assessment to casting (23.55 ± 29.67h vs. 6.75 ± 4.27h, p<0.05), increased average hospital stay (41.2 ± 31.1h vs. 19.2 ± 15.0h, p<0.05) and average hospital charges (US$1857.14 vs US$775.49, p<0.05). Excluding the un-displaced fractures, there were no significant differences in the period of cast immobilisation and median follow-up length. Both cohorts had a similar proportion of unacceptable reduction and revision casting rate. CONCLUSION: Both cohorts presented similar spica casting outcomes of fracture reduction and follow-up period. With spica cast application in operating theatre reporting higher hospital charges and prolonged hospital stay, the outpatient clinic should always be considered for hip spica application.

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Femoral fractures in childhood are rare and are usually the result of severe trauma. Conservative treatment (overhead extension, hip spica cast) can be used in children up to 3 years of age and beyond that elastic stable intramedullary nailing (ESIN) is the method of choice. The prognosis is very good if the surgical technique is adequate. In adolescents > 50 kg in body weight solid nails implanted via the greater trochanter are an alternative (adolescent lateral femoral nail, ALFN). External fixators and plate osteosynthesis are indicated in special situations. Femoral neck fractures are very seldom seen in this age group. Besides Kirschner (K)-wires and screw osteosynthesis a special pediatric hip plate is available in this situation. In the distal metaphysis mostly stable fractures occur in disabled children, which can usually be treated conservatively. In addition, pathological fractures occur in juvenile bone cysts and complex injuries in adolescents, which need stabilization by descending ESIN or with plates. At the distal growth plate relevant growth disturbances are possible.

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@#children with femur fractures. This study compares the outcomes of spica cast application, in terms of quality of fracture reduction and hospital charges when performed in operating theatre versus outpatient clinics at a local institution. Materials and Methods: A total of 93 paediatric patients, aged between 2 months to 8 years, who underwent spica casting for an isolated femur fracture between January 2008 and March 2019, were identified retrospectively. They were separated into inpatient or outpatient cohort based on the location of spica cast application. Five patients with metaphyseal fractures and four with un-displaced fractures were excluded. There were 13 and 71 patients in the outpatient and inpatient cohort respectively who underwent spica casting for their diaphyseal and displaced femur fractures. Variables between cohorts were compared. Results: There were no significant differences in gender, fracture pattern, and mechanism of injury between cohorts. Spica casting as inpatients delayed the time from assessment to casting (23.55 ± 29.67h vs. 6.75 ± 4.27h, p<0.05), increased average hospital stay (41.2 ± 31.1h vs. 19.2 ± 15.0h, p<0.05) and average hospital charges (US$1857.14 vs US$775.49, p<0.05). Excluding the un-displaced fractures, there were no significant differences in the period of cast immobilisation and median follow-up length. Both cohorts had a similar proportion of unacceptable reduction and revision casting rate. Conclusion: Both cohorts presented similar spica casting outcomes of fracture reduction and follow-up period. With spica cast application in operating theatre reporting higher hospital charges and prolonged hospital stay, the outpatient clinic should always be considered for hip spica application.

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OBJECTIVES: Avascular necrosis (AVN) of the femoral head is a major complication following treatment for developmental dysplasia of the hip (DDH). It is caused by excessive pressure over the femoral head, which compromises its blood supply. The rate of AVN following DDH treatment ranges from 6% to 48%. This study aimed to analyze the rate of AVN in DDH patients following different standard surgical treatments. METHODS: A retrospective cohort study was performed on patients diagnosed with DDH between January 2007 and December 2013. All idiopathic DDH patients who underwent standard surgical treatments were included in the study. Neuromuscular and teratologic patients and patients with previous surgical treatment outside the institute were excluded from the study. RESULTS: Overall, 204 hips in 143 pediatric patients were included in the study. The majority (84.8%) of the patients were female. Most patients (82.2%) received single treatment. The most commonly used surgical treatment was open reduction with pelvic osteotomy (82.8%). Type 4 Tonnis classification of DDH was found in 62.3% of patients. AVN was found in 14.3% of our study population. The majority (57.1%) of diagnosed AVN patients showed Grade 1 (Kalamchi) AVN classification. Patients who underwent closed reduction and hip spica showed a significantly higher rate of AVN compared to other treatments (14.3%, P = 0.044). CONCLUSION: Close follow-up of patients treated with closed reduction is mandatory as these patients have the highest risk of AVN. We recommend the introduction of national screening programs targeting all newborn children and including systematic follow-up at well-baby clinics during the early years of life.

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BACKGROUND: There is no consensus about the duration of post-operative immobilization in the treatment of DDH (developmental dysplasia of hip). Our aim in this study is to compare between two post-operative immobilization protocols for patients undergoing open reduction. MATERIALS AND METHODS: Thirty-eight hips in 32 patients assigned to group A were immobilized in hip spica for four weeks followed by abduction brace application which was gradually weaned through the periods of several months and 29 hips in 24 patients assigned to group B immobilized in hip spica for 12 weeks without further bracing. Both groups were surgically reduced using anterior approach between the ages of 12-24 months. RESULTS: There were non-significant statistical difference between both groups as regards clinical and radiological outcome but there is significant statistical difference as regards AVN (avascular necrosis) on follow-up between both groups. The rate of AVN cannot be related to the method of immobilization, as there are many factors can lead to AVN of the hip as immobilization in an extreme position and tight reduction. CONCLUSION: Group A post-operative immobilization protocol is safer and associated with less complications and more comfortable to the patient and parents than that used in group B. Early removal of hip spica cast and application of hip abduction brace does not increase the rate of re-dislocation. LEVEL OF EVIDENCE: Level III Retrospective comparative study.

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