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Implications of navigation system use for glenoid component placement in reverse shoulder arthroplasty

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Title: Implications of navigation system use for glenoid component placement in reverse shoulder arthroplasty
Authors: Kida, Hiroaki Browse this author
Urita, Atsushi Browse this author
Momma, Daisuke Browse this author
Matsui, Yuki Browse this author
Endo, Takeshi Browse this author
Kawamura, Daisuke Browse this author
Taneichi, Hiroshi Browse this author
Iwasaki, Norimasa Browse this author →KAKEN DB
Issue Date: 7-Dec-2022
Publisher: Nature Portfolio
Journal Title: Scientific reports
Volume: 12
Issue: 1
Start Page: 21190
Publisher DOI: 10.1038/s41598-022-25833-8
Abstract: Recently, three-dimensional (3D) planning, patient-specific instruments, and navigation system have been developed to improve the accuracy of baseplate placement in reverse shoulder arthroplasty (RSA). The purpose of this study was to evaluate baseplate placement using the navigation system. Sixty-four shoulders in 63 patients who underwent RSA for rotator cuff tear arthropathy or irreparable rotator cuff tears were enrolled. Conventional RSA was performed in 31 shoulders and navigated RSA using pre-operative planning software was performed in 33 shoulders. The use of augmented baseplates, the version and inclination of the baseplate, and screw length were compared between conventional RSA and navigated RSA. Augmented baseplates were used more frequently in navigated RSA than in conventional RSA (20 vs 9 shoulders, p=0.014). Baseplate alignment was 1.0 degrees (SD 5.1) of retroversion and 2.4 degrees (SD 6.8) of superior inclination in conventional RSA and 0.2 degrees (SD 1.9) of anteversion and 0.3 degrees (SD 1.7) of superior inclination in navigated RSA. Compared with conventional RSA, precision of baseplate version and inclination were higher in navigated RSA (both p<0.001). Superior, inferior, and posteroinferior screws were significantly longer in navigated RSA than in conventional RSA (p=0.021,0.001 and<0.001, respectively). Precision of superior and inferior screw lengths was significantly higher in navigated RSA than in conventional RSA (both p=0.001). Our results suggest that adoption of pre-operative planning software increased augmented baseplate use to minimize the glenoid reaming. The navigation system allows placement of the baseplate accurately, according to the pre-operative plan. Furthermore, the navigation system enables monitoring of screw length and direction in real time.
Type: article
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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