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Outcomes of knee disarticulation and the influence of surgical techniques in dysvascular patients : a systematic review

Murakami, Tsurayuki and Murray, Kevin (2015) Outcomes of knee disarticulation and the influence of surgical techniques in dysvascular patients : a systematic review. Prosthetics and Orthotics International, 40 (4). pp. 423-435. ISSN 0309-3646

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Background: Dysvascularity is the main cause of lower limb amputations in Scotland and there is an insignificant proportion (1.7%) of knee disarticulations (KD), despite the benefits of the amputation. Objectives: The outcomes of knee disarticulation and its associated surgical techniques will be evaluated based on healing, reamputations, functional outcomes, prosthetic ambulation, and gait biomechanics, to determine whether a greater rate of knee disarticulations can be justified among dysvascular patients. Study design: Systematic review Methods: Key electronic databases were searched for the relevant literature based on a pre-specified eligibility criterion. Results: The 17 articles included in this review were appraised for their quality, and key findings extracted. Conclusion: Healing rates are favourable, but there is a need for appropriate amputation level selection to prevent reamputations. Knee disarticulation patients have better maintenance of independent living status than transfemoral patients, but overall prosthetic ambulation rates are inconsistent. In terms of gait biomechanics of knee disarticulation, there are some positive indications but the evidence is insubstantial. A stronger body of evidence is required in this subject field, and recommendations are made for future research - Scottish Intercollegiate Guidelines Network Grade of Recommendation - C.