title: The J-Shaped Bone Graft for Anatomic Glenoid Reconstruction: A 10-Year Clinical Follow-up and Computed Tomography-Osteoabsorptiometry Study.
abstract: The J-shaped bone graft procedure is one of the recommended methods to reconstruct significant glenoid rim defects.
  
  
  
  To evaluate long-term (minimum 10-year) clinical outcomes and show further details of the remodeling effects on the articular cavity of the glenoid after J-shaped bone grafting.
  
  
  
  Case series; Level of evidence, 4.
  
  
  
  A total of 14 patients treated with a J-shaped bone graft procedure were observed clinically. Additionally, bilateral preoperative and postoperative follow-up computed tomography (CT) scans were used for CT-osteoabsorptiometry (OAM) to evaluate the bony remodeling processes.
  
  
  
  The follow-up rate was 93% at a mean follow-up time of 10.7 years (range, 10.08-11.75 years). Patients exhibited a mean Constant score of 92.5 (range, 80-100) on the clinical evaluation. All patients had free range of motion and were pain free without any recurrence of instability. Based on CT-OAM, comparable and almost anatomically reconstructed, bilaterally equal glenoid cavities were found postoperatively. The distribution patterns of glenoid subchondral mineralization were bilaterally equal in 85.7% of the patients.
  
  
  
  The surgical treatment of recurrent shoulder instability with a significant bony Bankart lesion using the J-shaped bone graft procedure provided excellent long-term results. This study lends evidence to support the capability of the J-shaped bone graft procedure to restore the normal glenoid shape due to physiological remodeling processes.
authors.affiliation: Department of Trauma Surgery, Medical University of Innsbruck, Innsbruck, Austria.|Hand and Upper Extremity Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Cambridge, Massachusetts, USA.
authors.forename: Christian
authors.initials: C
authors.lastname: Deml
authors.affiliation: Department of Trauma Surgery, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Peter
authors.initials: P
authors.lastname: Kaiser
authors.affiliation: Hand and Upper Extremity Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Cambridge, Massachusetts, USA.
authors.forename: Wouter F
authors.initials: WF
authors.lastname: van Leeuwen
authors.affiliation: Department of Trauma Surgery, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Zitterl
authors.affiliation: Department of Trauma Surgery, Medical University of Innsbruck, Innsbruck, Austria simon.euler@tirol-kliniken.at.
authors.forename: Simon A
authors.initials: SA
authors.lastname: Euler
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D016025:Bone Transplantation / Q000379:methods*; D002113:Calcification, Physiologic; D005260:Female; D005500:Follow-Up Studies; D061165:Glenoid Cavity / Q000000981:diagnostic imaging / Q000502:physiology / Q000601:surgery*; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D011184:Postoperative Period; D016059:Range of Motion, Articular; D012008:Recurrence; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000502:physiology / Q000601:surgery*; D014057:Tomography, X-Ray Computed
keywords: CT-OAM; bone graft; density distribution; glenoid; instability; shoulder