alexa The outcome of the Mobility total ankle replacement at a mean of four years: Can poor outcomes be predicted from pre- and post-operative analysis?
Orthopaedics

Orthopaedics

Orthopedic & Muscular System: Current Research

Author(s): Muir D, Aoina J, Hong T, Mason R

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Abstract We performed a retrospective review of a consecutive series of 178 Mobility total ankle replacements (TARs) performed by three surgeons between January 2004 and June 2009, and analysed radiological parameters and clinical outcomes in a subgroup of 129 patients. The mean follow-up was 4 years (2 to 6.3). A total of ten revision procedures (5.6\%) were undertaken. The mean Ankle Osteoarthritis Scale (AOS) pain score was 17 (0 to 88) and 86\% of patients were clinically improved at follow-up. However, 18 patients (18 TARs, 14\%) had a poor outcome with an AOS pain score of > 30. A worse outcome was associated with a pre-operative diagnosis of post-traumatic degenerative arthritis. However, no pre- or post-operative radiological parameters were significantly associated with a poor outcome. Of the patients with persistent pain, eight had predominantly medial-sided pain. Thirty TARs (29\%) had a radiolucency in at least one zone. The outcome of the Mobility TAR at a mean of four years is satisfactory in > 85\% of patients. However, there is a significant incidence of persistent pain, particularly on the medial side, for which we were unable to establish a cause. This article was published in Bone Joint J and referenced in Orthopedic & Muscular System: Current Research

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