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  • Title: Osteosynthesis of Common Acetabular Fractures Operated on Through a Single Posterior (Kocher-Langenbeck) Approach with or without Trochanteric Flip Osteotomy. A Case Series.
    Author: Manzoor QW, Sultan A, Mir BA.
    Journal: Ortop Traumatol Rehabil; 2021 Aug 31; 23(4):271-277. PubMed ID: 34511430.
    Abstract:
    BACKGROUND: The Kocher-Langenbeck approach is recommended in the majority of common posterior acetabular injuries. Trochanteric osteotomy can be used to extend the exposure of the Kocher-Langenbeck approach superiorly and anteriorly. We evaluated the functional outcome of common acetabular fractures operated on through the Kocher-Langenbeck approach with or without trochanteric flip osteotomy. MATERIAL AND METHODS: This prospective study enrolled 42 patients with posterior wall, posterior column, transverse, posterior wall with posterior column, transverse with posterior wall and both column acetabular fractures. The Kocher-Langenbeck approach was used in 35 patients and trochanteric flip osteotomy was done in 7 patients. The radiological outcome was evaluated by Matta's criteria and the functional outcome was evaluated using modified Merle d'Aubigné and Postel criteria. RESULTS: D'Aubigne Postel scores at the final follow-up were excellent in 12 patients, good in 18, fair in 8 and poor in 4. Thirty-seven patients had congruent reduction (anatomical in 29, imperfect in 8) and 5 patients had non-congruent reduction on radiographs as per Matta's criteria. Radiographic congruity (88.09%, 37 out of 42 cases) correlated fairly well with the functional outcome (excellent or good functional outcome in 71.4%, 30 out of 42 cases). The complications included traumatic nerve palsy (3 cases), iatrogenic nerve palsy (2 cases), deep venous thrombosis (2 cases), wound infection (3 cases), non-congruent reduction (5 cases), 8 cases of osteoarthritis of hip, 2 cases of avascular necrosis of femoral head and 3 cases of heterotrophic ossification. CONCLUSIONS: 1. Surgical treatment of common acetabular fractures with major posterior involvement can be attempted via a single posterior approach (Kocher-Langen-beck with or without trochanteric flip osteo-tomy) and leads to good-to-excellent results in a majority of the cases. 2. It is superior to conservative management, which has been found to be accompanied by a much higher rate of complications. 3. A thorough study of the pre-opera-tive radiographs, Judet's views and 3D-reconstructed CT images helps in classifying the fracture and thereby assigning or not assigning it for the posterior approach.
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