Supra Malleolar for Neglected Tibial Deformity Affecting the Ankle and Foot
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Abstract
Ankle arthrosis continues to affect millions of people worldwide. Whereas it is not as common as hip and knee arthrosis in the aging population, it is more and more prevalent in the younger population. Also, it is not uncommon to see total destruction of the ankle joint in the neuropathic population. Whereas arthrosis of the knee and hip is mostly “wear and tear” type, the vast majority of ankle arthrosis is post traumatic. Because of this the likely hood of an underlying post traumatic deformity is high. Post Traumatic Deformity is often disabling particularly in the case of osteomyelitis treatment and open fractures with bone loss. This leads to a painful, non plantigrade, non functional limb. Consequently, the surgeon needs to perform complete and methodic pre-operative planning prior to performing any definitive reconstructive joint surgery.
Ankle arthrodesis continues to be the standard of care for end stage ankle arthrosis. It is a tried and true procedure that provides the surgeon and patient, predictable union rates, low rate of complications and ultimately, gives acceptable AOFAS score, indicating a good post-surgical quality of life to the patient. However, arthrodesis is not without disadvantages. Over the last 10 years, however total ankle replacement (TAR), has become a growing and more widely accepted alternative to arthrodesis. New systems have improved instrumentation, shorter operating room time and fewer complications as well as improved functional outcomes. This procedure is also not without significant possible complications and disadvantages. Also, distraction ankle arthroplasty has shown to provide favorable short term and medium term favorable outcomes.
However, regardless of the procedure selected by the surgeon and patient for the treatment of ankle arthritis, there is one principle that is ubiquitous but unfortunately often overlooked. This iatrogenic negligence leads to increased non-union rates, continued pain and ultimately loss of functionality of the limb. The authors of this paper have encountered several failed ankle arthrodeses and TAR’s because of this which required extensive revisional reconstructive surgery.
