Abstract
Abstract Background Proximal row carpectomy (PRC) is a procedure used for pain relief from arthrosis that preserves some degree of range of motion (ROM). Dorsal capsular interposition (DCI) is an option for cases where some chondral loss of the capitate is present. Purposes The aim of this study is to assess what factors influence long-term patient-reported outcomes following PRC and specifically to evaluate the role of DCI. Additionally, this study aims to report the long-term postoperative ROM in patients with DCI. Methods Patients who underwent PRC in the period between 2002 and 2017 were retrospectively identified, resulting in a cohort of 162 patients. Patient-reported outcomes were obtained using validated questionnaires and were completed by 59 patients at a median follow-up time of 8.5 years (interquartile range [IQR]: 6.0–13). Multivariable linear regression was performed to identify factors independently associated with patient-reported outcomes. Results The median PRWE (Patient-Rated Wrist Evaluation) score was 17 (IQR: 5.5–52), the median QuickDASH (Quick Disabilities of the Arm, Shoulder and Hand) score was 16 (IQR: 4.5–39), and the median NRS (Numeric Rating Scale) Pain score was 1 (IQR: 0–3). The mean flexion–extension ROM was 70 ± 24 degrees. After correcting for gender, involvement of the capitate cartilage was independently associated with worse QuickDASH scores. Conclusions PRC is associated with good functional outcomes and pain control at long-term follow-up. This generally also applied to patients who underwent DCI; however, the role of DCI in those with capitate cartilage injury remains unclear. Preexistent damage to the capitate cartilage was associated with worse QuickDASH scores. Level of Evidence II, Prognostic study.
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