Session Type: Poster Session B
Session Time: 9:00AM-11:00AM
Background/Purpose: Sports that require the use of a racket or bat to propel a ball (e.g., baseball, softball, tennis) expose the thumb-base to repetitive high-velocity loading. However, it remains unclear if these sports increase the risk of thumb-base osteoarthritis (OA). We aimed to determine if a history of participation in racket or bat sports is associated with prevalent thumb-base OA.
Methods: We studied men and women from the Osteoarthritis Initiative (OAI) – a multicenter cohort study recruited from the community. Eligible participants had dominant hand radiographic readings, hand symptom assessments, and historical physical activity survey data. A history of participation in racket or bat sports (i.e., baseball/softball, racquetball/squash, badminton, table tennis, tennis [doubles/singles]) was based on self-reported recall data covering 3 age ranges (teens: 12-18 years, young adult: 19-34 years, adult: 35-49 years). As a sensitivity analysis, we examined people who indicated that participation in these sports was among their top 3 commonly performed physical activities during each age range. Prevalent radiographic thumb-base OA was defined as Kellgren-Lawrence grade>2 in the first carpometacarpal joint or scaphotrapezoidal joint at the OAI baseline visit. Symptomatic thumb-base OA was defined as the presence of radiographic OA and hand symptoms. We used a series of logistic regression models to assess the association between a history of racket or bat sports within each age range with prevalent radiographic thumb-base OA (primary outcome) or symptomatic thumb-base OA (secondary outcome). These models were performed stratified by sex and completed with and without adjusting for confounders (see Tables).
Results: The 2309 participants tended to be 60 (9) years of age, female (55%), white (80%), and educated with at least some college experience (87%). Among 1049 men, 355 (34%) and 56 (5%) had radiographic or symptomatic thumb-base OA, respectively. Among 1260 women, 525 (42%) and 170 (13%) had radiographic or symptomatic thumb-base OA, respectively. After adjusting for age, race, and education level, we found no significant associations between a history of any racket or bat sport participation and thumb-base OA (radiographic or symptomatic; odds ratios range from 0.84 to 1.34; Tables 1 and 2). Sensitivity analyses among people who listed racket/bat sports among their top 3 sports in each age range supported the primary analyses (Tables 1 and 2).
Conclusion: Within a community-based cohort, a self-reported history of participation in racket or bat sports was not associated with having radiographic or symptomatic thumb-base OA in the dominant hand.
To cite this abstract in AMA style:Driban J, Lo G, Roberts M, Harkey M, Schaefer L, Haugen I, Smith S, Duryea J, Lu B, Eaton C, Hochberg M, Jackson R, Kwoh C, Nevitt M, McAlindon T. Sports with a Bat or Racket Are Not Associated with Thumb-base Osteoarthritis: Data from the Osteoarthritis Initiative [abstract]. Arthritis Rheumatol. 2020; 72 (suppl 10). https://acrabstracts.org/abstract/sports-with-a-bat-or-racket-are-not-associated-with-thumb-base-osteoarthritis-data-from-the-osteoarthritis-initiative/. Accessed February 26, 2021.
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ACR Meeting Abstracts - https://acrabstracts.org/abstract/sports-with-a-bat-or-racket-are-not-associated-with-thumb-base-osteoarthritis-data-from-the-osteoarthritis-initiative/