Partial Fibular Head Resection Technique for Snapping Biceps Femoris.

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Human Anatomy

Background:

• Snapping biceps femoris is an uncommon condition characterized by the subluxation of the biceps femoris tendon over the fibular head during deep knee flexion.
• Pathologies include biceps insertion tears, anatomical variations, or an enlarged fibular head.

Purpose of the Study:

• To describe the clinical presentation, diagnostic methods, and treatment options for snapping biceps femoris.
• To highlight the importance of understanding lateral knee anatomy and protecting the common peroneal nerve during surgical intervention.

Main Methods:

• Clinical diagnosis based on reproducible subluxation during deep flexion, relieved by manual compression and tibial rotation.
• Radiographic evaluation to assess fibular head morphology.
• Magnetic resonance imaging (MRI) to identify tendon insertion abnormalities.

Main Results:

• Diagnosis is primarily clinical, supported by imaging findings.
• Nonoperative treatment is often effective, but surgery may be necessary for refractory symptoms.
• Surgical correction of the underlying pathology can eliminate subluxation and significantly improve symptoms.

Conclusions:

• Snapping biceps femoris requires careful clinical evaluation and appropriate imaging.
• Surgical management, when indicated, can yield excellent outcomes by addressing the root cause of the subluxation.
• Thorough knowledge of lateral knee anatomy and meticulous surgical technique are crucial for successful outcomes and nerve protection.