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Correlation between carpal rotational alignment and postoperative wrist range of motion following total wrist arthroplasty

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Title: Correlation between carpal rotational alignment and postoperative wrist range of motion following total wrist arthroplasty
Authors: Ota, Mitsutoshi Browse this author →KAKEN DB
Matsui, Yuichiro Browse this author →KAKEN DB
Kawamura, Daisuke Browse this author →KAKEN DB
Urita, Atsushi Browse this author →KAKEN DB
Endo, Takeshi Browse this author →KAKEN DB
Iwasaki, Norimasa Browse this author →KAKEN DB
Keywords: Range of motion
Rheumatoid arthritis
Total wrist arthroplasty
Wrist alignment
Issue Date: 30-Aug-2022
Publisher: BioMed Central
Journal Title: BMC musculoskeletal disorders
Volume: 23
Issue: 1
Start Page: 821
Publisher DOI: 10.1186/s12891-022-05776-x
PMID: 36042450
Abstract: Background Although total wrist arthroplasty (TWA) has become a common treatment option for wrists with damage due to rheumatoid arthritis (RA), the optimal implant axial alignment for TWA has been inadequately studied. This study was performed to investigate the relationships between implant alignment and carpal rotational alignment and the wrist range of motion (ROM) following TWA. Methods This study included 18 patients who underwent TWA using a DARTS (R) Total Wrist System (Teijin Nakashima Medical, Okayama, Japan) for wrist RA. Pre- and 6-month postoperative computed tomography scans were performed, including the radial volar line (Rv), capitohamate axis (CH), and Rv-CH angle in axial scans. The wrist ROM was also measured. The relationship between the Rv-CH angle and ROM was examined. Results The mean Rv-CH angle showed significant wrist pronation from 73.0 degrees to 83.4 degrees postoperatively. We observed a significant positive correlation (0.58) between the postoperative Rv-CH angle and extension and a significant negative correlation (- 0.56) between the postoperative Rv-CH angle and flexion. Conclusions Implantation of the DARTS (R) TWA prosthesis resulted in pronation of the carpal axial alignment, which was correlated with postoperative wrist extension. The volar cortex of the distal radius can be a novel reference axis for adequate implant placement.
Type: article
URI: http://hdl.handle.net/2115/86823
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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