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  • Title: The Kocher-Langenbeck Approach: Differences in Outcome of Transverse Acetabular Fractures Depending on the Patient's Position.
    Author: Negrin LL, Seligson D.
    Journal: Eur J Trauma Emerg Surg; 2010 Aug; 36(4):369-74. PubMed ID: 26816042.
    Abstract:
    INTRODUCTION: The Kocher-Langenbeck approach is most frequently used for open reduction and internal fixation of transverse acetabular fractures, the positioning of the patient still falling to the preference of the surgeon. The impact of 'prone' and 'lateral' positioning on radiographic outcome and postoperative complication rates was evaluated by this retrospective study. METHODS: Between 2002 and 2007, 27 consecutive cases of transverse acetabular fractures were treated randomly by four attending surgeons at a Level I trauma center, 18 done in a lateral and nine in a prone position, with no significant difference in age and pre- and intraoperative parameters; no patients were excluded. The complication rate was analyzed by medical records. After an average of 9 months postoperatively, the radiographic outcome was evaluated by plain X-rays and computed tomography (CT) scans using the Matta system, the Epstein classification, and the Brooker grades. Post-traumatic arthrosis and avascular necrosis of the femoral head were documented. RESULTS: We found a significantly poorer quality of fracture reduction (p = 0.032) and higher rate of posttraumatic arthrosis (p = 0.049) for patients who were operated for transverse acetabular fracture in the lateral versus the prone position. No revision surgery was needed; no infection was detected overall, whereas two iatrogenic nerve damages (one temporary, one persistent) were found only in the lateral group. There was no significant difference concerning extensive blood loss, femoral head necrosis, Epstein grades, heterotopic ossification, and secondary surgery needed. CONCLUSIONS: The weight of the leg may make reduction more difficult in the lateral position, leading to a poorer radiographic outcome.
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