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• W2512915903 abstract "There is no financial information to disclose. Multiple surgical procedures and implants have been developed to treat trapeziometacarpal joint osteoarthritis. Recently, a promising thumb basal joint hemiarthroplasty was reported in the literature to provide pain relief and improved function. The authors reported a 94% implant survivorship with revision as an endpoint at a mean follow up of 72.1 months. The purpose of our study was to evaluate the senior author’s clinical results and survivorship of thumb basal joint hemiarthroplasty using the same device. We performed 35 basal joint hemiarthroplasties in 32 patients from 2011 to 2014. Of these, 26 thumbs (25 patients) had clinical follow up of at least 12 months. Mean age of the patients was 54 years (range 43-68 years) with 88% females. All patients had Eaton-Littler Stage II or III arthritis preoperatively. Average follow up was 22.5 months (range 12-41 months). The main outcomes were revision rate and time to revision. Pre- and post-operative radiographs were examined to determine the amount of overall thumb ray lengthening and amount of subsidence of the implant between those revised and unrevised. Student’s t-test and Fisher exact test was used for statistical analysis (P < 0.05). At minimum of 12 month follow up, 16 of 26 thumbs (61.5%) had been revised with implant removal, resection of remaining trapezium, and ligament reconstruction with tendon interposition (LRTI). Another 3 thumbs were symptomatic and planning on future revision. Continued pain, stem loosening, and implant subsidence into the trapezium were the clinical reasons for revision. Mean time to revision was 18.1 months (range 8-41 months). Those needing revisions trended towards being younger, but this was not significant (52.9 versus 56.5 years P = 0.17). The revised cohort had the index procedure more often on the dominant side (56% versus 10%; P = 0.037). There was no significant difference between those revised and unrevised in terms of percentage of thumb ray lengthening and amount of trapezial subsidence. •Although a limited number of cases were examined, we found poor implant survivorship and an unacceptably high rate of re-operation with the studied thumb basal joint hemiarthroplasty device.•These results are in stark contrast to previous reports in the literature.•Therefore, we cannot advocate for continued use of the device and no longer use this implant for thumb basal joint arthroplasty.View Large Image Figure ViewerDownload Hi-res image Download (PPT)" @default.
• W2512915903 created "2016-09-16" @default.
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• W2512915903 date "2016-09-01" @default.
• W2512915903 modified "2023-10-14" @default.
• W2512915903 title "Early Clinical Failure of a Cementless Thumb Basal Joint Hemiarthroplasty for the Treatment of Trapeziometacarpal Osteoarthritis" @default.
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• W2512915903 doi "https://doi.org/10.1016/j.jhsa.2016.07.021" @default.
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