Comparative Research of the Clinic Efficacy of Reverse Shoulder Arthroplasty and Hemi-shoulder Arthroplasty for Shoulder Disease

Abstract：Objective To compare the curative effects of 2operation methods of reverse shoulder arthroplasty and hemi-shoulder arthroplasty for shoulder joint dysfunction.Methods Data of patients who underwent reverse shoulder arthroplasty and hemi-shoulder arthroplasty from January 2014 to June 2018 in our hospital were collected and followed up respectively.Range of motion (ROM), Visual Analogue score (VAS), University of California at LosAngeles score (UCLA), Adjusted Constant-Murley score (CMS) and American Shoulder and Elbow Surgeons (ASES) of the last follow-up were statistically analyzed.Results In this study, we found ROM of anteflexion, extorsion and abduction in reverse shoulder arthroplasty group were (130.56±3.09) degree, (38.44±2.70) degree and (131.78±2.54) degree respectively at last follow-up, results in hemi-shoulder arthroplasty group were anteflexion (104.12±7.66) degree, extorsion (27.06±3.93) degree and abduction (123.88±4.88) degree, anteflexion, extorsion and abduction were better in reverse shoulder arthroplasty group with P＜0.05.But intorsion degree was (41.67±3.39) degree in reverse shoulder arthroplasty group, with the degree of intorsion (48.76±3.29) degree in hemi-shoulder arthroplasty group, intorsion degree was relatively better in hemi-shoulder arthroplasty group with a significant P value below 0.05.The last follow-ups of UCLA, CMS and ASES in reverse shoulder arthroplasty group were (28.78±2.05), (58.89±2.80) and (74.33±2.18) correspondingly, and UCLA (26.24±2.14), CMS (56.12±2.47) and ASES (71.53±2.53) were detected in hemi-shoulder arthroplasty group, UCLA, CMSA and ASES were higher in reverse shoulder arthroplasty group through statistical analyses (P＜0.05).But VAS scores in reverse shoulder arthroplasty group and in hemi-shoulder arthroplasty group were (1.22±0.44) and (1.41±0.51), which made VAS scores had no difference in comparison, with a pvalue above0.05.Conclusion Reverse shoulder arthroplasty had relatively better postoperative shoulder function than hemi-shoulder arthroplasty method, it could enhance and improve the quality of patients`life, but this method should hold strict indications and treat it seriously.