AANA19 Knee Access Pass-Dislocated Knee_ Current Concepts-Dr. Bruce A. Levy, M.D.

Dislocated Knee_ Current Concepts-Dr. Bruce A. Levy, M.D.

Video Transcription

Video Summary

The speaker discusses limb-threatening knee dislocations, emphasizing vascular injuries with up to 50% arterial lesions. ABI ≥ 0.9 rules out major arterial injury, guiding the use of CT angiograms. Vascular injury worsens long-term function. Nerve injury occurs in 10-40%; partial palsies often recover, while complete peroneal nerve transections benefit from early motor nerve transfers restoring dorsiflexion. External fixation protects vascular repairs and unstable knees. Early surgery improves outcomes but risks arthrofibrosis; ongoing trials aim to optimize timing. Case studies illustrate successful nerve transfers and complex vascular repair with ligament reconstruction, highlighting challenges and advances in managing these severe injuries.

Keywords

knee dislocation

vascular injury

ankle-brachial index

nerve injury

external fixation