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26 Jul 2025
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Displaced Subcapital Femoral Neck Fracture in a Young Adult Male


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Clinical Details

Clinical and radiological findings:  A 36-year-old male sustained a high-energy impact injury after being thrown from a bull, resulting in a displaced subcapital femoral neck fracture. The injury is closed with significant risk for avascular necrosis and nonunion. Radiological assessment confirmed the displacement of the fracture.

Preoperative Plan

Planning remarks:  The preoperative plan involved an open reduction through a Heuter approach to achieve anatomic reduction, which is critical for the success of treatment. Fixation was planned using a dynamic hip screw system with an anti-rotation screw.

Surgical Discussion

Patient positioning:  Supine position on a fracture table to facilitate access to the anterior aspect of the hip.

Anatomical surgical approach:  Anterior Heuter approach: A longitudinal incision was made over the anterior aspect of the hip, with careful dissection through the interval between the sartorius and tensor fascia lata muscles. The capsule was incised to expose the femoral neck and head for direct visualization and reduction of the fracture.

Operative remarks: 

The surgeon emphasized the importance of achieving an anatomic reduction to mitigate the risks of avascular necrosis and nonunion. A fixed angle sliding hip screw (DHHS) was chosen over cannulated screws due to its mechanical advantages in maintaining reduction and providing stability in young patients with displaced femoral neck fractures.

Postoperative protocol:   Postoperative rehabilitation included early mobilization with toe-touch weight-bearing for 6 weeks, followed by progressive weight-bearing as tolerated. Range of motion exercises were initiated immediately post-surgery to prevent joint stiffness.

Follow up:   Not specified.

Orthopaedic implants used:   Dynamic Hip Screw System (DHHS), Anti-rotation screw.

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