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Snapping knee from biceps femoris tendon. A case report.
G Kristensen1, K Nielsen, P J Blyme
1Copenhagen University Department of Orthopedics, Gentofte Hospital, Hellerup, Denmark.
Acta Orthopaedica Scandinavica
|October 1, 1989
Summary
Snapping knee pain occurred when the biceps femoris tendon abnormally inserted on the tibia, sliding over the fibular head. Surgical removal of the fibular head provided immediate pain relief.
Area of Science:
- Orthopedic surgery
- Musculoskeletal biomechanics
- Sports medicine
Background:
- Snapping knee syndrome can significantly impact patient mobility and quality of life.
- The long head of the biceps femoris muscle is a key component of the knee's posterior and lateral stabilizing structures.
Observation:
- A specific case of painful snapping knee was identified.
- The snapping sensation was attributed to the abnormal sliding of the biceps femoris tendon over the fibular head.
Findings:
- The abnormal insertion of the biceps femoris tendon onto the tibia was confirmed as the cause of the snapping.
- Resection of the fibular head effectively resolved the symptomatic snapping and associated pain.
Implications:
- This case highlights the importance of accurate anatomical assessment in diagnosing knee pain.
- Fibular head ostectomy may be a viable surgical option for specific cases of biceps femoris tendinopathy causing snapping knee.
- Understanding tendon-bone interactions is crucial for developing targeted treatments for knee pathologies.