Functional midterm follow-up comparison of stemless total shoulder prostheses versus conventional stemmed anatomic shoulder prostheses using a 3D-motion-analysis

BMC Musculoskeletal Disorders

Research Article

David M. Spranz¹  Hendrik Bruttel¹  Michael W. Maier¹  Felix Zeifang¹  Sebastian I. Wolf¹ 

[1] Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstraße 200a, D-69118, Heidelberg, Germany;

关键词: Shoulder arthroplasty;    Stemless shoulder arthroplasty;    Osteoarthritis;    3D motion analysis;    HUX Model;   

DOI  :  10.1186/s12891-017-1835-3

 received in 2017-02-27, accepted in 2017-11-13,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundThe aim of this study is to compare the functional midterm outcome of stemless shoulder prostheses with standard anatomical stemmed shoulder prostheses and to show that the STEMLESS results are comparable to the STEMMED with respect to active maximum range of shoulder motion (ROM) and Constant score (CS).MethodsSeventeen patients underwent total shoulder arthroplasty (TSA) in 25 shoulder joints. Stemless TSA was performed in 12 shoulder joints (group STEMLESS), third-generation stemmed TSA in 13 shoulder joints (group STEMMED). Functional results were documented using the CS. 3D-motion-analysis using the Heidelberg upper extremity model (HUX) was conducted to measure active maximum (ROM).ResultsThe group STEMLESS achieved a CS of 67.9 (SD 12.0) points and the group STEMMED of 70.2 (SD 5.8 points) without significant difference between the groups (p = 0.925). The maximum ROM of the group STEMLESS, ascertained by 3-D-motion-analysis, was in forward flexion 125.5° (SD 17.2°), in extension 49.4° (SD 13.8°), in abduction 126.2° (SD 28.5°) and in external rotation 40.3° (SD 13.9°). The maximum ROM of the group STEMMED, also ascertained by 3-D-motion analysis, was in forward flexion 135.0° (SD 16.8°), in extension 47.2° (SD 11.5°), in abduction 136.3° (SD 24.2°) and in external rotation 40.1° (SD 12.2°). The maximum ROM of the STEMLESS group was lower in forward flexion and abduction, higher in extension and almost identical in external rotation. But there was no significant difference (forward flexion p = 0.174, extension p = 0.470, abduction p = 0.345, external rotation p = 0.978).ConclusionBoth types of shoulder prostheses achieve a similar and good active ROM and similar results in CS.Trial registrationDRKS00013166, retrospectively registered, 11.10.2017

【 授权许可】

CC BY   
© The Author(s). 2017