Inlay hemiarthroplasty of the humeral head for nontraumatic osteonecrosis

Atraumatic osteonecrosis of the humeral head: pathophysiology and current concepts of evaluation and treatment

“…After 14-year follow-up, AOHH patients improved the mean age- and sex-adjusted Constant score from 12 points preoperatively to 75 points after surgery; also, AOHH was the group with the highest patient-reported outcomes when compared with other etiologies. Allen et al 1 performed 9 inlay hemiarthroplasties (partial resurfacing) in patients with a mean age of 47 years and AOHH Stage II-IV. Significant improvement was observed in patient-reported outcomes (ASES, P = .01; VAS pain, P = .009), forward elevation ( P = .012), and external rotation ( P = .007) at 7.2 years follow-up.…”

“…Revision rates after resurfacing arthroplasty for AOHH vary between 11% and 37.5%. 1 , 73 Preoperative factors associated with failure were glenoid erosion ( P = .001) and rotator cuff tear ( P = .0017). 73 A better understanding of the optimal candidates for resurfacing arthroplasty can decrease the revision rates currently reported.…”