Glenoid wear and its impact on clinical results after humeral head replacement using a single prosthesis in cuff tear arthropathy with more than 8 years of follow-up.

Background: Glenoid wear (GW) is a long-term complication after humeral head replacement (HHR) and is one of the major reasons for revision surgery. This study aimed to evaluate GW at >8 years of follow-up after HHR in patients with cuff tear arthropathy (CTA) by use of a modified classification of GW, to examine the relationship between GW and clinical outcomes, and to identify risk factors for GW progression.

Methods: This retrospective case-series study included 34 shoulders that were monitored for >8 years after HHR in patients with CTA (13 men and 21 women; mean age at surgery, 70.

Glenoid wear after humeral head replacement with using a single implant in patients with cuff tear arthropathy more than five years.

Background: The aim of this study was to investigate glenoid wear in patients with humeral head replacement with a smaller humeral head, who were observed for >5 years, and to examine the relationship between radiographic changes and clinical outcome.

Methods: In this study, 41 shoulders of 41 patients (13 men, 28 women) were followed up for >5 years. The mean patient age at the time of surgery was 70.

Translation of the humeral head scale is associated with success of rotator cuff repair for large-massive tears.

Background: Although a loss of rotator cuff integrity leads to the superior migration of the humeral head, the parameters that characterize the anterolateral migration of the humeral head have not been established. The purpose of this study was to investigate the correlation between the translation of the humeral head scale (T-scale) and clinical outcomes of rotator cuff repair, as well as the correlation between the T-scale and radiologic parameters.

Methods: One hundred thirty-five consecutive patients with full-thickness rotator cuff tears underwent primary rotator cuff repair.

A butyrophilin family member critically inhibits T cell activation.

The costimulatory molecules in the B7-CD28 families are important in the regulation of T cell activation and tolerance. The butyrophilin family of proteins shares sequence and structure homology with B7 family molecules; however, the function of the butyrophilin family in the immune system has not been defined. In this study, we performed an analysis on multiple butyrophilin molecules and found that butyrophilin-like (BTNL)1 molecule functions to dampen T cell activation.