Work

Short-term outcomes of shoulder arthroplasty using the Comprehensive Convertible Glenoid system

Year: 2026

Type: article

Abstract: Background Glenoid loosening remains the most common cause of aseptic failure following total shoulder arthroplasty. Modern metal-backed glenoid (MBG) designs with bony ingrowth and screw fixation have been developed to address this, with promising short-term results, but data remains limited. Methods This is a retrospective review of prospectively collected data investigating the short-term outcomes of aTSA in patients who received a metal-backed glenoid component in conjunction with their total shoulder arthroplasty at a single-center with four surgeons specializing in shoulder arthroplasty. Patients who underwent aTSA with a modern MBG with a minimum of two-year follow-up were identified, and data was collected regarding clinical, radiographic, and patient-reported outcomes. Results Twenty-eight patients (mean age 58.0±6.5 years, mean follow-up 3.8±1.3 years) met inclusion criteria. Range of motion improved in all measurements. ASES improved 47.4 points (p<0.001), SANE increased from 28.8 to 79.0 (p<0.001), SAS from 10.0 to 13.0 (p=0.008), PROMIS increased 17.8 (p<0.001), and VAS decreased from 5.2 to 2.6 (p<0.001). Three patients underwent conversion to reverse shoulder arthroplasty; no cases of component loosening, polyethylene dissociation, or periprosthetic fracture were observed. Discussion The Comprehensive® Convertible Glenoid system in aTSA demonstrates strong radiographic and clinical outcomes at short-term follow-up. This information can be useful in counseling patients regarding the results of this procedure. Long-term studies are needed to further elucidate the longevity of metal-backed glenoids. Level of evidence Level IV, Retrospective case series treatment study

Source: Journal of Shoulder and Elbow Arthroplasty

DOI: 10.1016/j.jsea.2026.100101