Handedness-related outcome following arthroscopic shoulder stabilization
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ARTHROSCOPY AND SPORTS MEDICINE
Handedness‑related outcome following arthroscopic shoulder stabilization Raphael J. Roth1 · Martin Kaipel2 · Martin Majewski1 Received: 4 February 2020 / Accepted: 31 May 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Introduction Bankart’s repair technique represents a standard procedure for arthroscopic shoulder stabilization with excellent functional outcomes. Information concerning handedness-related outcome is missing. Here, we compare the postoperative outcome following arthroscopic shoulder stabilization in relation to handedness, taking sex and age as covariates into account. Patients and methods Our retrospective dual-cohort study included 36 patients with dominant side shoulder instability (mean follow-up 33 months) and 31 patients with non-dominant side shoulder instability (mean follow-up 41 months), who underwent arthroscopic shoulder stabilization due to traumatic anterior-inferior shoulder instability. All had experienced recurrent dislocations preoperatively. The impact of handedness, and of age and sex as covariates on postoperative outcome was evaluated by the Rowe score, the apprehension test and self-reported VAS. Results Postoperatively, the Rowe score of the dominant side (mean 81.8, median 97.5) and the non-dominant side (mean 84.8, median 100) was not different (P = 0.718). Likewise, the univariate analysis for handedness (P = 0.806), sex (P = 0.627) and age (P = 0.929) as well as multivariate analysis for handedness (P = 0.721), sex (P = 0.583) and age (P = 0.898) showed no difference. The apprehension test for dominant versus non-dominant side operated patients was not different (P = 0.194). The univariate and multivariate analysis for handedness (P = 0.202 and P = 0.387, respectively) and age (P = 0.322 and P = 0.310, respectively) revealed no difference. However, the univariate and multivariate analysis for sex (P = 0.007 and P = 0.013, respectively) showed a difference. In relation to handedness, the results for the validated self-reported pain (rest pain P = 0.696, load-dependent pain P = 0.332) and surgery outcome satisfaction (P = 0.912) VAS were not different. Conclusions Patients with shoulder instability, who underwent arthroscopic Bankart repair for stabilization of their dominant or non-dominant shoulder showed no handedness-related difference in postoperative outcome based on Rowe score, apprehension test and self-reported VAS. For the orthopedic practice, this suggests that handedness is not a risk factor for patients outcome. Level of evidence Level IV, cohort study. Keywords Handedness · Shoulder stabilization · Arthroscopic surgery · Outcome · Bankart repair
Introduction The glenohumeral joint possesses a remarkable mobility conjoined with stability [1, 3]. Age, sex and handedness are important factors for its normal function and strength [2–13]. Nevertheless, this large joint is prone to dislocation, * Raphael J. Roth [email protected] 1
Department of Orthopedics, University Hospital Basel, Spitalstr
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