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Hip Arthroscopic Management for Femoral Head Fractures and Posterior Acetabular Wall Fractures (Pipkin Type IV).

ABSTRACT: Femoral head fractures associated with acetabular fractures are usually treated by an open method. After a closed reduction of a hip dislocation, open reduction and internal fixation of acetabular fractures usually depend on the type of acetabular fracture. Acetabular fractures associated with femoral head fractures, torn labrums, or osteochondral fractures are often managed simultaneously by a posterior approach. The patient in this study was referred to us because of pain and limited motion after open reduction and internal fixation of an acetabular fracture. Postoperative computed tomography showed remnant osteochondral fragments located in the cotyloid fossa. Using hip arthroscopy, we found a torn labrum and multiple osteochondral fragments in the cotyloid fossa. The avulsed torn labrum was reattached with 2 anchors through the midanterior portal. Osteochondral fragments were curetted and removed. This article reviews the treatment of the torn labrum and multiple fragments after acetabular fracture reduction. The patient recovered immediately and had a satisfactory outcome. We conclude that hip arthroscopy is a valuable option for treating femoral head fracture dislocations associated with acetabular fractures.

SUBMITTER: Park MS

PROVIDER: S-EPMC3834644 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Hip Arthroscopic Management for Femoral Head Fractures and Posterior Acetabular Wall Fractures (Pipkin Type IV).

Park Myung-Sik MS Yoon Sun-Jung SJ Choi Seung-Min SM

Arthroscopy techniques 20130622 3

Femoral head fractures associated with acetabular fractures are usually treated by an open method. After a closed reduction of a hip dislocation, open reduction and internal fixation of acetabular fractures usually depend on the type of acetabular fracture. Acetabular fractures associated with femoral head fractures, torn labrums, or osteochondral fractures are often managed simultaneously by a posterior approach. The patient in this study was referred to us because of pain and limited motion af ...[more]

PMID: 24265988

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Project description:Femoral head fractures are rare injuries; incongruency and instability are indications for surgical intervention. Anterior, posterior, and transtrochanteric surgical approaches have been proposed, but the exposure is limited with classical approaches. Surgical hip dislocation allows for a 360° view of the head and may facilitate a reduction in selected head fractures, but to our knowledge, few studies have reported on the results with this technique. We therefore report on the (1) quality of fracture reduction; (2) modified Harris hip score at a minimum of 2 years (mean, 6 years, range, 26-122 months); and (3) frequency of complications, including avascular necrosis (AVN), arthritis development, and heterotopic ossification, in a case series of patients with femoral head fractures treated with this approach.The procedure involves digastric trochanteric flip osteotomy and safe dislocation of the femoral head, preserving its vessels. Using this technique we are able to reduce all displaced femoral head fractures under direct view. Definitive fixation is performed through this approach with 2.7-mm nonabsorbable screws. The same technique may be used also for Pipkin IV fractures to fix transverse, T-type, posterior wall, or posterior column acetabular fracture.Between 2004 and 2011, we used this approach to manage all displaced femoral head fractures in patients younger than 55 years old. A total of 17 patients were thus treated; of those three were lost to followup before 2 years, and one was excluded from study because of severe preoperative neurological impairment, leaving 13 for analysis here. Patient demographic, injury, and surgical variables as well as complications were recorded and retrospectively evaluated. Radiographic outcome was scored according to Matta's criteria on postoperative radiographs. Outcomes were evaluated with the modified Harris hip score. Minimum followup was 24 months (mean, 77 months; SD, 32.8 months).Fracture reduction was anatomic in eight hips and imperfect in five. Mean clinical score was 82 points (SD, 7.7). One patient developed symptomatic femoral head AVN and underwent total hip arthroplasty 4 years after the index procedure; no other patient underwent arthroplasty. Besides this patient, signs of arthritis (Grade I according to Tönnis classification) were found in one patient and heterotopic ossification was recorded in two patients, but neither was symptomatic.Our experience with surgical dislocation shows clinical results comparable to previously reported outcomes in femoral head fractures treated with common approaches; we also present a similar rate of AVN and a lower rate of posttraumatic arthritis, but a higher risk of heterotopic ossification. Further case-control studies are necessary to confirm these statements.Level IV, therapeutic study.

Dataset Information

Hip Arthroscopic Management for Femoral Head Fractures and Posterior Acetabular Wall Fractures (Pipkin Type IV).

Publications

Hip Arthroscopic Management for Femoral Head Fractures and Posterior Acetabular Wall Fractures (Pipkin Type IV).

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