MEDIUM-TERM OUTCOMES FOLLOWING MATHYS AFFINIS SHORT STEMLESS ANATOMIC TOTAL SHOULDER REPLACEMENT: CLINICAL AND RADIOLOGIC FINDINGS (MINIMUM 5-YEAR FOLLOW-UP).
J E Dixon, I A Rankin, N C Sciberras, L A K Khan, S L Barker, D A Cairns, K Kumar
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引用次数: 0
Abstract
Background: Stemless anatomic total shoulder arthroplasty (aTSA) use has increased in recent years. Despite evidence to suggest good mid-term results at 2-year follow-up, there is a paucity of evidence for longer term follow-up. This study aimed to investigate outcomes at a minimum of 5 years postoperatively following primary stemless aTSA.
Methods: An observational cohort study using prospectively collected data was performed for all patients that underwent a Mathys Affinis stemless aTSA procedure at our institution. The study period ranged from July 2010 to August 2018 (minimum 5-year follow-up). Clinical outcome measures included revision rate, range of motion, and patient reported outcomes (Oxford Shoulder Score and Numerical Satisfaction Score). Radiological outcome was an assessment of radiolucency using Lazarus grading.
Results: A total of 105 stemless TSAs were implanted during the trial period. Following exclusions, seventy-five aTSA's were included in the final cohort for analysis of 5-year outcomes. Five patients underwent revision (4.8%). Median follow-up time was 6.1 years. Median age was 69 years old and 81% were female. Oxford shoulder score showed a range of 18 to 48, with a median score of 47. Satisfied or very Satisfied was selected in 94.4%. Median range of motion assessments showed forward elevation 160°, abduction 150°, external rotation 40°, and mode internal rotation was to the lumbar spine. No glenoid lucency was present in 79.7%. There were 9.5% with Lazarus Grade 1 lucency, 5.4% with Lazarus Grade 2, and 5.4% Lazarus Grade 3. No humeral lucency was observed.
Conclusions: This cohort study represents the largest minimum 5 year follow-up data for the Mathys Affinis stemless anatomic total shoulder arthroplasty, demonstrating excellent clinical and radiological outcomes.
期刊介绍：
The official publication for eight leading specialty organizations, this authoritative journal is the only publication to focus exclusively on medical, surgical, and physical techniques for treating injury/disease of the upper extremity, including the shoulder girdle, arm, and elbow. Clinically oriented and peer-reviewed, the Journal provides an international forum for the exchange of information on new techniques, instruments, and materials. Journal of Shoulder and Elbow Surgery features vivid photos, professional illustrations, and explicit diagrams that demonstrate surgical approaches and depict implant devices. Topics covered include fractures, dislocations, diseases and injuries of the rotator cuff, imaging techniques, arthritis, arthroscopy, arthroplasty, and rehabilitation.
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