Patient Perspectives After Trapeziectomy Versus Carpometacarpal Prosthesis: A Qualitative Thematic Analysis of Ten Bilateral Cases

<b>Background</b>: Carpometacarpal (CMC-I) arthritis is a frequent and disabling condition. Standard surgical options include trapeziectomy and prosthetic arthroplasty. While quantitative outcomes have been widely studied, little is known about patient perspectives regarding function, aesthetics, and rehabilitation. <b>Methods</b>: We conducted semi-structured interviews with ten patients who had undergone trapeziectomy on one side and prosthesis implantation on the contralateral side. Interviews were performed ≥6 months postoperatively, audio-recorded, transcribed verbatim, and analyzed thematically following Braun and Clarke's framework. Researcher triangulation and member checking were applied to enhance trustworthiness. <b>Results</b>: Four overarching themes were identified. (1) Strength: Most patients reported greater strength and endurance on the prosthetic side, though both hands were generally adequate for daily activities. (2) Rehabilitation: Recovery after prosthesis implantation was described as markedly faster and less burdensome, with reduced need for therapy compared to trapeziectomy. (3) Aesthetics: Trapeziectomy was often associated with dissatisfaction due to thumb shortening and collapse, while prostheses were perceived as restoring a more natural appearance. (4) Surgical preference: When asked which procedure they would hypothetically choose again, all participants favored prosthesis implantation, citing superior function, faster recovery, and more favorable aesthetics. <b>Conclusions</b>: Patients who experienced both procedures consistently preferred prosthesis implantation. Their narratives highlight dimensions beyond standard clinical scores, including rehabilitation burden, appearance, and psychosocial impact. Incorporating patient-reported outcomes into surgical counseling is essential to align treatment of CMC-I arthritis with patient priorities and to support shared decision-making.