Stemless anatomic TSA result ed in similar functional outcomes and complication rates to stemmed TSA with decreased operative time and lower blood loss .
BACKGROUND Stemless anatomic total shoulder arthroplasty ( TSA ) is used in the treatment of osteoarthritis of the shoulder joint and other degenerative shoulder diseases .
It has several proposed advantages over stemmed TSA including increased bone preservation , decreased operative time , and easier removal at revision .
Sidus Stem-Free Shoulder System for primary osteoarthritis: short-term results of a multicenter study.
BACKGROUND The aim of this prospect i ve multicenter study was to evaluate clinical and radiologic results of a new metaphyseal anchored system . This system features a different anchor geometry that potentially leads to better bony integration and less loosening . METHODS From November 2012 until December 2015 , 148 patients ( 151 shoulders ) were treated with the Sidus Stem-Free Shoulder System at 9 centers in Europe . The main indication was primary osteoarthritis ( 80.1 % ) . This analysis only includes patients diagnosed with primary osteoarthritis ( n = 121 ) . A clinical evaluation was performed using the Constant-Murley score , Subjective Shoulder Value , American Shoulder and Elbow Surgeons St and ardized Shoulder Assessment Form , and range of motion . Radiologic assessment was based on the occurrence of radiolucent lines and signs of implant migration , osteolysis , loosening , and heterotopic ossification . RESULTS We evaluated 105 patients after a follow-up period of 2 years . There were 53 women and 52 men . The average age was 64 years . Total shoulder arthroplasty was performed in 73 cases and hemiarthroplasty in 32 . The Constant-Murley score improved from 26 points preoperatively to 70 points at 2 years ' follow-up ( P < .001 ) . The Subjective Shoulder Value increased from 34 % to 84 % ( P < .001 ) , and the American Shoulder and Elbow Surgeons St and ardized Shoulder Assessment Form increased from 34 points to 86 points ( P < .001 ) . Radiologically , neither migration nor loosening was found . However , radiolucent lines of 2 mm or greater could be detected around the glenoid in 2 cases , but none of them have had clinical relevance yet . The overall complication rate was 6.7 % , and the revision rate was 0 % . CONCLUSION Patients with the Sidus Stem-Free Shoulder System achieve good clinical and radiologic short-term results that are comparable with the results of other stem-free shoulder implants
Stemless anatomic TSA result ed in similar functional outcomes and complication rates to stemmed TSA with decreased operative time and lower blood loss .
BACKGROUND Stemless anatomic total shoulder arthroplasty ( TSA ) is used in the treatment of osteoarthritis of the shoulder joint and other degenerative shoulder diseases .
It has several proposed advantages over stemmed TSA including increased bone preservation , decreased operative time , and easier removal at revision .