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Vascular injuries associated with dislocation of the knee
The Journal of Bone and Joint Surgery. American Volume
|March 1, 1977
Summary
Prompt knee dislocations require urgent vascular repair to prevent amputation. Prompt surgical intervention within eight hours significantly reduces the risk of limb loss and ischemic complications following knee dislocation injuries.
Area of Science:
- Orthopedic Surgery
- Vascular Surgery
- Trauma Care
Background:
- Knee dislocations are severe injuries often associated with neurovascular compromise.
- Popliteal artery injury is a critical complication of knee dislocation, potentially leading to limb loss.
Purpose of the Study:
- To confirm the incidence of popliteal artery injuries in knee dislocations.
- To re-emphasize the critical time window for vascular repair to prevent amputation.
Main Methods:
- Analysis of 245 knee dislocations, including 41 new cases.
- Review of patient outcomes related to the timing of vascular repair.
Main Results:
- Popliteal artery injury incidence was confirmed at 32%.
- 86% of patients treated after the 8-hour window underwent amputation.
- Ischemic changes occurred in two-thirds of the remaining 14% not treated promptly.
Conclusions:
- Urgent vascular repair within 6-8 hours of knee dislocation is crucial.
- Delayed treatment significantly increases amputation rates and ischemic complications.
- Prompt surgical intervention is vital for limb salvage in knee dislocation with popliteal artery injury.