Exposure of osteosynthesis material for knee arthrodesis and rotation of the gastrocnemius muscle flap. A case report

Background: Introduction: Coverage of complex defects in the knee and proximal third of the leg is a reconstructive challenge, especially when there is exposed bone or fixation material. The gastrocnemius muscle flap has established itself as a reliable technique due to its robust vascularity and wide rotation range. The anatomy, surgical technique, and clinical application of the gastrocnemius flap are reviewed, with emphasis on coverage of exposed fixation material. Considerations on its use versus other reconstructive alternatives are included. Results: Rotation of the gastrocnemius muscle flap provides stable coverage, reduces infection rates, and favors the preservation of orthopedic implants. Its technical simplicity, shorter surgical time, and reliability make it superior to free flaps in selected scenarios. Conclusion: The gastrocnemius flap is an essential tool in reconstructive surgery of the lower extremity. Its application in cases of exposed osteosynthesis material guarantees vascular coverage and satisfactory functional results, with a low complication rate. Keywords: Gastrocnemius flap, Osteosynthesis exposure, Reconstructive surgery