|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Medicine / Faculty of Medicine >
Peer-reviewed Journal Articles, etc >
Changes in elbow joint contact area in symptomatic valgus instability of the elbow in baseball players
| Title: | Changes in elbow joint contact area in symptomatic valgus instability of the elbow in baseball players |
| Authors: | Numaguchi, Kyosuke Browse this author | | Momma, Daisuke Browse this author →KAKEN DB | | Matsui, Yuki Browse this author | | Oohinata, Jun Browse this author | | Yamaguchi, Takayoshi Browse this author | | Inoue, Nozomu Browse this author →KAKEN DB | | Kondo, Eiji Browse this author →KAKEN DB | | Iwasaki, Norimasa Browse this author →KAKEN DB |
| Keywords: | Bone quality and biomechanics | | Musculoskeletal system |
| Issue Date: | 5-Oct-2021 |
| Publisher: | Nature Portfolio |
| Journal Title: | Scientific reports |
| Volume: | 11 |
| Issue: | 1 |
| Start Page: | 19782 |
| Publisher DOI: | 10.1038/s41598-021-99193-0 |
| Abstract: | The aim of this study was to evaluate the joint contact area of the dominant side and that of the non-dominant side without valgus instability in symptomatic pitchers. Ten symptomatic elbow medial ulnar collateral ligament (UCL) deficient baseball pitchers participated in this study. Computed tomography (CT) data from the dominant and non-dominant elbows were obtained with and without elbow valgus stress. The CT imaging data of each elbow joint were reconstructed using a 3D reconstruction software package, and the radiocapitellar and ulnohumeral joint contact areas were calculated. The center of the contact area and the translation from the position without stress to the position with valgus stress were also calculated. With elbow valgus stress, the contact area changed, and the center of the radiocapitellar joint contact area translated significantly more laterally in the dominant elbow than in the non-dominant elbow (p = 0.0361). In addition, the center of the ulnohumeral joint contact area translated significantly more posteriorly in the dominant elbow than in the non-dominant elbow (p = 0.0413). These changes in contact areas could be the reason for cartilage injury at the posterior trochlea in pitchers with UCL deficiency. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/83834 |
| Appears in Collections: | 国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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)
|
|
