Background Gastrocnemius recession is a popular procedure utilized to treat chronic conditions related to isolated gastrocnemius contracture (IGC). Recent anatomical research detailing variable gastrocsoleus tendon morphology has raised important questions regarding the safety of some traditional recession procedures. Alternative gastrocnemius recession strategies may produce comparable dorsiflexion improvement results while avoiding the surgical risk related to conjoint tendon anatomical variability. Methods Ten matched cadaver pairs were randomized to receive either a medial gastrocnemius recession (MGR) procedure or a gastrocnemius intramuscular recession “Baumann” procedure. Postoperative dorsiflexion improvement was measured and then compared between groups. Detailed postoperative surgical dissections were performed to assess structures at risk, conjoint tendon morphology, and anatomical symmetry. Results Medial gastrocnemius recession and Baumann procedures were equally effective at producing significant increases in passive ankle dorsiflexion. No sural nerve injuries were observed. Thirty-five percent of specimens showed direct muscular fusion of at least a portion of the distal gastrocnemius muscular tissue to the adjacent soleus. Conclusion The MGR procedure produced comparable dorsiflexion improvement results to the Baumann procedure in our cadaver model. Surgeons must account for certain conjoint tendon anatomical variants when surgically treating IGC as traditional recession methods risk tendo-Achilles overlengthening. Levels of Evidence: Level V: Cadaver Study
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