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Published on: January 23, 2018
Factors Influencing Surgical Decision Making in Trapeziometacarpal Osteoarthritis
Lana Kang1, Christian Victoria1, Khusboo Desai1
1Hand and Upper Extremity Service, Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, USA.
Purpose:
With trapeziometacarpal osteoarthritis (TMC OA), the relationship between disease severity and pretreatment dysfunction, patient expectations, and preferred patient treatment and management remains unclear. This study aimed to assess the association between functional status, pretreatment expectations, and demographic and clinical characteristics of TMC OA patients who decide to undergo operative management.
Methods:
Patients diagnosed with TMC OA (n = 96) were administered the Thumb Arthritis Expectations Survey and the Brief Michigan Hand Questionnaire (bMHQ) during their initial office visit. Demographic data (sex, age, race, education level, marital status, comorbidities, and hand dominance) and clinical characteristics (prior injury, and therapeutic interventions including splinting, steroid injections, therapy, and anti-inflammatory medication) were collected. Multiple logistic regression was used to assess the association between surgical treatment and expectation scores.
Results:
Our logistic regression model found that lower bMHQ scores, high thumb arthritis expectation survey scores, and prior treatments for TMC OA were associated significantly with the surgical treatment of TMC OA. After controlling for all possible covariates, the odds of having surgery was 3.9 times higher among patients with high expectations (above median) compared to patients with low expectations (adjusted odds ratio [AOR], 3.9; 95% confidence interval [CI], 1.3-11.2). Patients with average function, as measured by bMHQ scores, were 74.5% less likely to elect for surgery than those with the lowest bMHQ (AOR, 0.3; 95% CI, 0.1-0.9). Patients treated previously with steroids were 13 times more likely to elect for surgery than those who were never treated for TMC arthritis (AOR,13.1; 95% CI, 2.2-77.0).
Conclusions:
Patients with TMC OA who elect to proceed with surgical management have lower bMHQ (greater perceived dysfunction) and higher expectations, and have had prior treatment. Age was not a significant predictor of surgical management of TMC OA.
Type Of Study/Level Of Evidence:
Prognostic IV.
