Glenoid Morphology after Arthroscopic Osseous Bankart Repair for Recurrent Anterior Glenohumeral Instability: A 5- to 8-Year Follow-up

Kitayama, Souichirou; Sugaya, Hiroyuki; Takahashi, Norimasa; Kawai, Nobuaki; Tanaka, Motoki; Tokai, Morihito; Iwamoto, Wataru; Yasuda, Kazunori

doi:10.1016/j.arthro.2013.07.197

Cited by 4 publications

(9 citation statements)

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“…They concluded that a large glenoid defect may not be reconstructed adequately even with anatomical reduction and good healing of a small bone chip. Kitayama et al 8 investigated the long-term outcome and glenoid morphology after arthroscopic osseous Bankart repair for shoulders with glenoid bone loss of >15% and 5 to 8 years of follow-up. Recurrence occurred before bone union was achieved in 1 of 32 patients, but a successful outcome without recurrence was obtained in the others after bone union.…”

Section: Discussionmentioning

confidence: 99%

Enlargement of Glenoid Defects in Traumatic Anterior Shoulder Instability

Nakagawa

Ozaki

Take

et al. 2014

Orthopaedic Journal of Sports Medicine

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Background:Large glenoid rim defects in patients with traumatic anterior shoulder instability are often regarded as a contraindication for arthroscopic Bankart repair, with a defect of 20% to 27% considered as the critical size. While recurrence of dislocations, male sex, and collision sports were reported to be the significant factors influencing large glenoid defects, the influences of subluxations and more detailed types of sports were not investigated.Purpose:To investigate the influence of the number of dislocations and subluxations and type of sport on the occurrence and size of glenoid defects in detail.Study Design:Case-control study; Level of evidence, 3.Methods:A total of 223 shoulders (60 with primary instability, 163 with recurrent instability) were prospectively examined by computed tomography. Glenoid rim morphology was compared between primary and recurrent instability. In patients with recurrent instability, the relationship between the glenoid defect and the number of dislocations and subluxations was investigated. In addition, glenoid defects were compared among 49 male American football players, 41 male rugby players, 27 male baseball players, and 25 female athletes.Results:The mean extent of the glenoid defect was 3.5% in shoulders with primary instability and 11.3% in those with recurrent instability. A glenoid defect was detected in 108 shoulders (66.2%) with recurrent instability versus 12 shoulders (20%) with primary instability. Regarding the influence of the total number of dislocations/subluxations, the average extent of the glenoid defect was 6.3% in 85 shoulders with 2 to 5 events, 12.9% in 34 shoulders with 6 to 10 events, and 19.6% in 44 shoulders with 11 or more events. The glenoid defect became significantly larger along with an increasing number of recurrences. Although recurrent subluxation without dislocation also influenced the glenoid defect size, the number of dislocations did not. The average extent of the glenoid defect was 12.0% in rugby players, 8.9% in American football players, 4.7% in female athletes, and 4.5% in baseball players. Glenoid defects were significantly smaller in male baseball players and female athletes than in male collision athletes.Conclusion:The glenoid defect is significantly enlarged by damage due to recurrent dislocation and subluxation; therefore, glenoid rim morphology differs markedly between primary and recurrent instability. Glenoid defect size is also influenced by sex and by the type of sport.

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Section: Discussionmentioning

confidence: 99%

Enlargement of Glenoid Defects in Traumatic Anterior Shoulder Instability

Nakagawa

Ozaki

Take

et al. 2014

Orthopaedic Journal of Sports Medicine

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“…Our results have shown that arthroscopic reduction and fixation with suture anchors of acute bony Bankart lesions yield satisfactory clinical outcomes, and that non-anatomic reduction of the fragment was consistently found in cases of instability recurrence. After Porcellini et al published their case series 3 on managing acute bony Bankart lesions through arthroscopic approach, many authors have demonstrated satisfactory outcomes with arthroscopic surgical reduction and fixation of glenoid defects [3,6,[9][10][11][12]14] . In our study, the average postoperative Rowe score (90.4 points) was very similar to that reported by Kim et al [7] (92 points) and Jiang et al 6 (91.1 points).…”

Section: Discussionmentioning

confidence: 99%

“…In our study, the average postoperative Rowe score (90.4 points) was very similar to that reported by Kim et al [7] (92 points) and Jiang et al 6 (91.1 points). Furthermore, several authors have reported significant improvement in Rowe, WOSI and UCLA postoperative scores after arthroscopic repair of bony Bankart lesions [6][7][8][9][10][11][12]14] .…”

Section: Discussionmentioning

confidence: 99%

“…However, there have been many encouraging reports more recently of excellent results following treatment through arthroscopic reduction and fixation [2,3,[6][7][8][9][10] . The outcome following repair of bony Bankart lesions is affected by many factors such as: chronicity of the lesion, glenoid defect or bony fragment size, bone union, and reduction quality [6,7,9,[11][12][13][14] . Moreover, despite the consensus in the literature advocating for early stabilization of bony Bankart lesions [9,13,14] , this recommendation is based on only a few clinical trials of cases with acute lesions [3,9] .…”

Section: Introductionmentioning

confidence: 99%

“…The outcome following repair of bony Bankart lesions is affected by many factors such as: chronicity of the lesion, glenoid defect or bony fragment size, bone union, and reduction quality [6,7,9,[11][12][13][14] . Moreover, despite the consensus in the literature advocating for early stabilization of bony Bankart lesions [9,13,14] , this recommendation is based on only a few clinical trials of cases with acute lesions [3,9] . Thus, the present study sought to clarify which risk factors are associated with Online Submissions: http: //www.ghrnet.org/index.php/ijo doi: 10.17554/j.issn.2311-5106.2020.07.395…”

Section: Introductionmentioning

confidence: 99%

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