Synovial Chondromatosis in the First Metatarsophalangeal Joint: A Case Report of this Uncommon Condition and Review of Current Literature.

Introduction: Synovial osteochondromatosis is a rare condition characterized by the formation of multiple cartilaginous nodules, which involves metaplastic changes of the synovium and is commonly found in larger joints. Occurrence in foot and ankle is uncommon, even less in metatarsophalangeal joints.

Case Report: A 54-year-old woman with primary synovial osteochondromatosis in the first metatarsophalangeal joint was treated by complete excision plus synovectomy.

Shoulder arthroplasty. Comorbidity as prognostic factor.

Introduction: Preoperative comorbidity seems to be an important factor for the functional recovery of patients after shoulder replacement, but few studies support this correlation.The purpose of this study was to clinically evaluate the influence of comorbidity in restoring function after shoulder replacement.

Methods: We performed a retrospective analysis of shoulder replacement accomplished at our institution from 2005 to 2016 (n = 70).