Minimal invasive para-rectus approach for limited open reduction and percutaneous fixation of displaced acetabular fractures |
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Authors: | Osama Farouk Ayman Kamal Mahmoud Badran Wael El-Adly Kamal El-Gafary |
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Institution: | 1. Orthopaedic Department, Assiut University Hospitals, 71526 Assiut, Egypt;2. Trauma Unit, Assiut University Hospitals, 71526 Assiut, Egypt |
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Abstract: | IntroductionMinimal invasive fixation has been reported as an alternative option for treatment of acetabular fractures to avoid blood loss and complications of extensive approaches. Closed reduction and percutaneous lag screw fixation can be done in minimally displaced acetabular fractures. Open reduction is indicated, if there is wide displacement. In this study, we report the use of a mini-open anterior approach to manipulate and reduce anteriorly displaced transverse acetabular fractures combined with percutaneous lag screw fixation.MethodsThis report included eight patients. All had anterior displaced simple transverse acetabular fractures. An oblique mini-incision was made above and medial to the mid-inguinal point, and lateral to the lateral border of rectus abdominis muscle. The external abdominal oblique aponeurosis was incised along its fibres. The arched fibres of internal abdominal oblique were displaced medially above the inguinal ligament to expose and incise the fascia transversalis. Care was taken to avoid injury of ilioinguinal nerve, inferior epigastric vessels, and spermatic cord. The external iliac vessels were palpated and protected laterally. A blunt long bone impactor was introduced through this small incision to manipulate and reduce the fracture under fluoroscopic control. Fluoroscopic guided percutaneous lag screw fixation was done in all patients.ResultsThe average time to operation was 4 days. Average blood loss was 110 mL. Operative time averaged 95 min. Maximum fracture displacement averaged 10 mm preoperatively and 1.3 mm postoperatively. According to Matta score, anatomical reduction of the fracture was achieved in five patients and imperfect in three. Follow up averaged 27 months. Wound healing occurred without complications and fracture union was achieved without secondary displacement in all patients. Average time to fracture healing was 14 weeks. According to the modified Merle d’Aubigné score, functional outcome was good to excellent in all patients.Discussion and conclusionLimited open reduction can solve the problem of fracture reduction, which is the main concern in minimal invasive fixation of acetabular fractures. It may help the inclusion of displaced acetabular fractures for percutaneous lag screw fixation. This mini-para-rectus approach has the advantages of minimal soft tissue dissection with the possible anatomical reduction of simple transverse displaced acetabular fractures. |
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Keywords: | Acetabular fracture Minimal invasive Para-rectus approach Mini-open reduction Limited open reduction Fracture reduction Surgical approach Percutaneous fixation Lag screw |
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