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1.
Hand Surg ; 17(2): 155-60, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22745077

RESUMEN

Surgical repair is advocated for partial flexor tendon lacerations deeper than 70%. We compared gliding resistance with three different peripheral repairs in partial flexor tendon lacerations. Thirty flexor tendons and A2 pulleys were harvested from turkey toes. Gliding resistance was measured for all intact tendons. The tendons were then lacerated to 50% and repaired with a modified Kessler core suture and either a Silfverskiold or Halsted repair or a simple running suture and gliding resistance was measured. Compared to the intact tendon, the increase in gliding resistance after surgical repair was 100% with the Halsted repair, 80% with the Silfverskiold repair and 60% with a running suture (p = 0.05). In conclusion, a simple running suture caused less resistance to gliding compared to the other techniques when repairing partial flexor tendon lacerations and we recommend its use when surgical repair is needed.


Asunto(s)
Laceraciones/fisiopatología , Laceraciones/cirugía , Técnicas de Sutura , Traumatismos de los Tendones/fisiopatología , Traumatismos de los Tendones/cirugía , Animales , Fenómenos Biomecánicos , Técnicas In Vitro , Pavos
2.
J Bone Joint Surg Br ; 92(8): 1171-5, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20675767

RESUMEN

We carried out lacerations of 50%, followed by trimming, in ten turkey flexor tendons in vitro and measured the coefficient of friction at the tendon-pulley interface with loads of 200 g and 400 g and in 10 degrees , 30 degrees, 50 degrees and 70 degrees of flexion. Laceration increased the coefficient of friction from 0.12 for the intact tendon to 0.3 at both the test loads. Trimming the laceration reduced the coefficient of friction to 0.2. An exponential increase in the gliding resistance was found at 50 degrees and 70 degrees of flexion (p = 0.02 and p = 0.003, respectively) following trimming compared to that of the intact tendon. We concluded that trimming partially lacerated flexor tendons will reduce the gliding resistance at the tendon-pulley interface, but will lead to fragmentation and triggering of the tendon at higher degrees of flexion and loading. We recommend that higher degrees of flexion be avoided during early post-operative rehabilitation following trimming of a flexor tendon.


Asunto(s)
Laceraciones/cirugía , Traumatismos de los Tendones/cirugía , Animales , Modelos Animales de Enfermedad , Fricción , Laceraciones/fisiopatología , Estrés Mecánico , Traumatismos de los Tendones/fisiopatología , Traumatismos de los Tendones/rehabilitación , Pavos , Soporte de Peso
3.
Foot Ankle Surg ; 15(1): 40-2, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19218064

RESUMEN

The long-term outcome of primary talectomy for trauma without tibiocalcaneal fusion has not been reported in the literature. We report a case of a primary talectomy for trauma in a 10-year-old patient with 60-year follow-up. The patient had minimal symptoms during this period which suggests that this procedure can have the desired effect in providing good long-term quality of life.


Asunto(s)
Astrágalo/lesiones , Astrágalo/cirugía , Anciano , Niño , Estudios de Seguimiento , Humanos , Masculino , Factores de Tiempo
4.
Ann R Coll Surg Engl ; 88(2): 108-15, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16551395

RESUMEN

INTRODUCTION: A cross-sectional study was performed to compare the practice of total hip replacement (THR) in the UK against national guidelines. MATERIALS AND METHODS: A postal questionnaire was sent to all fellows of the British Orthopaedic Association. RESULTS: Of the 1587 questionnaires sent out, 966 (60.9%) were returned. Of these, 706 (73.1%) were available for data collection and analysis. CONCLUSIONS: Consensus was observed in several areas including the use of pre-admission clinics and modern cementing techniques. Facilities deemed necessary for THR surgery such as HDU/ITU back-up, ultra-clean air and dedicated orthopaedic wards are almost universally available. However, a lack of consensus is evident in many areas including the process of obtaining written consent, thrombo-embolic prophylaxis, duration of antibiotic prophylaxis, supervision of trainee surgeons and follow-up arrangements. The proliferation in the range of implants, particularly aimed at 'younger' patients, available to surgeons has once again been highlighted.


Asunto(s)
Artroplastia de Reemplazo de Cadera/normas , Adhesión a Directriz/normas , Guías de Práctica Clínica como Asunto/normas , Competencia Clínica/normas , Consenso , Estudios Transversales , Humanos , Cuerpo Médico de Hospitales/normas , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control , Pautas de la Práctica en Medicina/normas , Encuestas y Cuestionarios , Tromboembolia/prevención & control , Factores de Tiempo , Reino Unido
5.
Ann R Coll Surg Engl ; 88(1): 13-5, 2006 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-16460630

RESUMEN

INTRODUCTION: The aim of this study was to investigate the degree of contamination of a surgeon's hand following use of chlorhexidine gluconate or alcohol gel as disinfectants. MATERIALS AND METHODS: In this prospective, randomised trial, orthopaedic surgeons were allocated to one of two different hand-washing protocols using a randomisation table. The hand-washing protocol dictated that all surgeons should wash for 5 min with chlorhexidine for their first case. Thereafter, the surgeon was randomised to wash for 3 min with either alcohol gel or chlorhexidine. At the end of each procedure, the gloves of each surgeon were carefully removed and the fingertips from each hand were placed on an agar plate. The number of bacterial colonies present after 24 h and 48 h of incubation were recorded for each agar plate by a microbiologist blinded to the washing protocol used. RESULTS: Overall, 41 procedures and 82 episodes of hand washings were included in the study. Two episodes were discarded due to contamination at the time of glove removal. Four hands (8%) were contaminated in the chlorhexidine group compared to 19 (34%) in the alcohol group. Fisher's exact test confirmed a significantly higher risk of contamination using alcohol gel compared to chlorhexidine (P = 0.002). In addition, the average bacterial colony count was substantially higher in the alcohol group (20 colony forming units) compared to the chlorhexidine group (5 colony forming units). There was no relationship between the duration of surgery and the degree of contamination (P = 1.12). CONCLUSIONS: Alcohol gel disinfectant is not a suitable alternative to chlorhexidine when hand washing before surgery. This study has identified a higher risk of bacterial contamination of surgeons' hands washed with alcohol. This may lead to higher levels of postoperative infection in the event of glove perforation.


Asunto(s)
Antiinfecciosos Locales/farmacología , Desinfección de las Manos/métodos , Transmisión de Enfermedad Infecciosa de Profesional a Paciente/prevención & control , Procedimientos Ortopédicos , Bacterias/aislamiento & purificación , Clorhexidina/análogos & derivados , Clorhexidina/farmacología , Recuento de Colonia Microbiana , Infección Hospitalaria/prevención & control , Etanol/farmacología , Dedos/microbiología , Guantes Quirúrgicos , Humanos , Estudios Prospectivos , Infección de la Herida Quirúrgica/prevención & control
7.
J Pediatr ; 144(4): 545-8, 2004 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15069409

RESUMEN

A child with cystathionine beta-synthase deficiency developed cerebral edema 4 to 6 weeks after starting betaine therapy. There was no evidence of intracranial thrombosis, but there was widespread edema of the white matter. He recovered fully after emergency decompressive craniotomy and withdrawal of betaine.


Asunto(s)
Betaína/efectos adversos , Edema Encefálico/inducido químicamente , Fármacos Gastrointestinales/efectos adversos , Homocistinuria/tratamiento farmacológico , Betaína/administración & dosificación , Edema Encefálico/cirugía , Preescolar , Craneotomía , Cistationina betasintasa/deficiencia , Descompresión Quirúrgica , Fármacos Gastrointestinales/administración & dosificación , Homocistinuria/complicaciones , Humanos , Masculino
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