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Patients underwent surgery between 2010 and 2021 with assessment of functional recovery, thumb ROM, perioperative NSAID use, return to work, and 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for basal joint arthritis  \nHsueh-Min Kuoa,b, I.-Ning Loa,b, Cheng-Yu Yina,b, Jung-Pan Wanga,b, Yi-Chao Huanga,b,*  \naDepartment of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; bDepartment of Orthopaedics, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC  \nAbstract  \nBackground: Ligamentous laxity, cartilage wear, and diffuse synovitis are frequently seen in thumb basal joint arthritis. Although these degenerative changes may be mild for the majority, they have the potential to cause discomfort during movement and compromised hand function. This study assesses the long-term outcomes of arthroscopic debridement, synovectomy, and thermal shrinkage in managing early-stage basal joint arthritis.  \nMethods: We retrospectively reviewed patients with basal joint arthritis who underwent arthroscopic debridement, synovectomy, and thermal shrinkage between November 2010 and January 2021 by a single surgeon at our medical institute. We assessed functional outcomes, thumb range of motion, perioperative nonsteroidal anti-inflammatory drug (NSAID) use, return to work and satisfaction level.  \nResults: A total of 12 patients (13 hands), with a mean follow-up of 72 months, were included in this study. Significant improvements were observed in pain scores and functional outcomes, along with a reduction in postoperative NSAID use. Patients also reported a relatively quick return to work and a high satisfaction level.  \nConclusion: The study highlights the benefits of arthroscopic intervention, providing a minimally invasive approach with favorable long-term outcomes for patients with symptomatic basal joint arthritis.  \nKeywords: Arthroscopic debridement; Basal joint arthritis; Dorsal capsule plication; Thermal shrinkage; Thumb carpometacarpal joint  \n1. INTRODUCTION  \nBasal joint arthritis is the second most common site of arthritis in the hand following the distal interphalangeal (DIP) joint of the fingers, and can result in considerable impairment of normal hand function, including diminished thumb mobility and strength.1 The basal joint, or the thumb carpometacarpal (CMC) joint, is a reciprocal saddle joint that has a biconcaveconvex shape. This highly mobile joint is only partially constrained, which allows an extensive range of motion (ROM), including flexion, extension, adduction, abduction, and axial rotation. The saddle morphology of the trapezium, along with a complement of ligamentous constraints, contributes to the stability of the joint during the motion of grip, pinch, and opposition.2 Ligament attenuation is a contributing factor to dorsal subluxation and the acceleration of degenerative processes within the joint. Studies have shown that the development of arthritis is significantly associated with female sex, obesity, and occupations that require repetitive use of the thumb.3–5  \n*Address correspondence. Dr. Yi-Chao Huang, Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, 201, Section 2, Shi-Pai Road, Taipei 112, Taiwan, [ROC. E-mail address: hcyhuang@gmail.com](ROC. E-mail address: hcyhuang@gmail.com) (Y.-C. Huang). Conflicts of interest: The authors declare that they have no conflicts of interest related to the subject matter or materials discussed in this article.  \nJournal of Chinese Medical Association. (2024) 87: 686-690.  \nReceived January 30, 2024; accepted April 29, 2024. doi: 10. 1097/JCMA.0000000000001110  \nCopyright © 2024, the Chinese Medical Association. This is an open access article under the CC BY-NC-ND license ([http://creativecommons.org/licenses/](http://creativecommons.org/licenses/)[ ](http://creativecommons.org/licenses/)[by-nc-nd/4.0/](by-nc-nd/4.0/))  \nEaton and Littler6 introduced a widely recognized radiographic staging system for basal joint arthritis, encompassing a spectrum from mild joint widening to the advanced stage of","cbCaimM67QL1oGYU","https://ap.wps.com/l/cbCaimM67QL1oGYU","pdf",472029,"English","# Introduction\n# Methods\n# Results\n# Conclusion","[{\"question\":\"What clinical problems in thumb basal joint arthritis does this study address?\",\"answer\":\"The study targets ligamentous laxity, cartilage wear, and diffuse synovitis that often lead to discomfort with motion and compromised hand function.\"},{\"question\":\"How were treatment outcomes evaluated in this research?\",\"answer\":\"Functional outcomes, thumb range of motion, perioperative NSAID use, return to work, and patient satisfaction were assessed after arthroscopic debridement, synovectomy, and thermal shrinkage.\"},{\"question\":\"What were the key long-term findings reported?\",\"answer\":\"Twelve patients (13 hands) with an average follow-up of 72 months showed significant improvements in pain and function, reduced postoperative NSAID use, relatively quick return to work, and high satisfaction.\"}]","Arthroscopic debridement, synovectomy, and thermal shrinkage for basal joint arthritis | PDF",1790677358,13]