Abstract
Ankle arthritis is a debilitating condition. Primary ankle joint osteoarthritis is much rarer than hip or knee arthritis. The majority of cases are post-traumatic secondary to previous articular trauma or ligamentous instability. Treatment methods available are guided by disease severity and the patient's functional demands. Weight loss, activity modification, the wearing of an ankle brace or high-topped lace-up boots and orthoses should be the first line of treatment. Joint-sparing procedures such as arthroscopic debridement, supramalleolar osteotomy and distraction arthroplasty have been trialled with low levels of supporting evidence. The demand for joint preservation has led to the development of total ankle allografting procedures, but these have fallen out of favour. Despite advancements, the gold standard for end-stage arthritis remains arthrodesis, although evidence for total ankle arthroplasty in certain groups of patients is increasing. The current third-generation implants have improved survivorship although their results remain inferior to arthroplasty of the hip and knee. There is currently a UK randomized control trial of ankle replacement versus arthrodesis under way as well as several national joint registries, which will hopefully better define those patients who will gain most benefit from replacement as opposed to fusion.
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