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. 2023 Dec;77(6):613-618.
doi: 10.18926/AMO/66153.

Survey of Osteoarthritis of the Shoulder in Patients who Underwent Knee Arthroplasty for Knee Osteoarthritis

Yoshiaki Miyake  1 , Yoshifumi Namba  1 , Shigeru Mitani  1 , Norifumi Umehara  1 , Toyohiro Kawamoto  1 , Shuro Furuichi  1
Affiliations
Free article

Survey of Osteoarthritis of the Shoulder in Patients who Underwent Knee Arthroplasty for Knee Osteoarthritis

Yoshiaki Miyake et al. Acta Med Okayama. 2023 Dec.
Free article

Abstract

The relationship between osteoarthritis (OA) of the lower extremity and shoulder OA has not been established. This study evaluated the prevalence of shoulder OA in patients with knee OA. We collected contrast-enhanced computed tomography (CECT) images of the shoulder joints of 105 patients with knee OA that were taken 1 week after they underwent primary knee arthroplasty to check for venous thromboembolism (VTE). The images were compared with CECT images of 110 control-group patients that were taken for the purpose of differentiating VTE. Shoulder OA was present in a significantly higher percentage of patients with knee arthroplasty than controls (29% versus 15%), and the difference was particularly pronounced in patients in their 70s (33%) compared to age-matched controls (11%). Patients with knee OA often use arm support to stand up or walk due to knee joint pain and muscle weakness, which places the weight-bearing shoulder at risk of developing OA.

Keywords: knee arthroplasty; knee osteoarthritis; shoulder osteoarthritis; weight-bearing shoulder.

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Conflict of interest statement

No potential conflict of interest relevant to this article was reported.

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