title: Rapid collapse of the humeral head after arthroscopic rotator cuff repair.
abstract: This report presents a case of rapidly progressive collapse of the humeral head following arthroscopic rotator cuff repair. We performed humeral head replacement 8 months after the index surgery; histological examination of the collapsed area revealed necrosis, degeneration, fibrillation, and granulation in the cartilage and trabeculae. Osteonecrosis due to the use of metal anchors was considered the primary cause of the post-operative humeral head collapse. As the demand for arthroscopic cuff repair is expected to increase in the future, we recommend that surgeons become aware of the potential for complications, as seen in the present case.
  
  
  METHODS
  IV.
authors.affiliation: Department of Orthopedic Surgery, Kurume University Medical Center, 155-1 Kokubu-machi, Kurume, Fukuoka, 839-0863, Japan, m.goto.1037@gmail.com.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Goto
authors.forename: Masafumi
authors.initials: M
authors.lastname: Gotoh
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Mitsui
authors.forename: Takahiro
authors.initials: T
authors.lastname: Okawa
authors.forename: Fujio
authors.initials: F
authors.lastname: Higuchi
authors.forename: Kensei
authors.initials: K
authors.lastname: Nagata
mesh_terms: D000368:Aged; D019643:Arthroplasty, Replacement; D001182:Arthroscopy / Q000009:adverse effects*; D001672:Biocompatible Materials; D005260:Female; D006801:Humans; D058430:Humeral Head / Q000098:blood supply / Q000473:pathology*; D008670:Metals; D010020:Osteonecrosis / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology / Q000601:surgery*; D017006:Rotator Cuff / Q000601:surgery*; D000070636:Rotator Cuff Injuries; D053441:Suture Anchors / Q000009:adverse effects*
chemical_list: D001672:Biocompatible Materials; D008670:Metals