Myodesis during amputation surgery refers to:

• A Suturing of agonist and antagonist muscle groups to each other across the residual limb
• B Transfer of muscles over the residual bony end for soft tissue coverage
• C Removal of excess muscle to create a conical stump shape
• D Direct suture fixation of muscle to bone through drill holes to maintain muscle tension and prevent retraction ✓

Explanation

Myodesis is the technique of suturing divided muscles directly to bone (via drill holes) at the end of the residual limb, as opposed to myoplasty (suturing muscles to each other). Myodesis maintains muscle tension, preserves muscle function for prosthetic control, prevents muscle retraction and atrophy, and provides a more stable residual limb for prosthetic fitting. It is particularly important in above-knee amputations where the adductors are fixed to the lateral femoral cortex to prevent hip abduction contracture. Proper myodesis improves prosthetic function and patient outcomes.

Reference: Maheshwari Essential Orthopaedics, 6th ed.

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Written and medically reviewed by the StethoPrep medical team.