Abstract:
BACKGROUND:There are various modifications of the Bankart repair, and postoperative changes to the glenoid morphology after the repair are reported. Among the various procedures performed, a decrease in the lateral glenoid diameter might be related to the surgery that involves removal of the articular cartilage and repair of the labrum-anterior inferior glenohumeral ligament complex on the glenoid surface. This is in contrast to cases without significant bony Bankart lesions that are not on the edge of the glenoid. Thus, this study aimed to compare glenoid rim stress after Bankart repair using 2 methods of finite element analysis: a method of removing the anteroinferior cartilage and repairing the glenohumeral ligament complex on the glenoid and a method of preserving the cartilage and repairing the glenohumeral ligament complex on the glenoid edge. METHODS:Five preoperative computed tomography scans of patients with traumatic anterior instability who underwent arthroscopic Bankart repair were used. Two models simulating different surgical procedures were created as follows: in model G, a 5-mm-thick cartilage on the glenoid rim was removed between 2 and 7 o'clock, and the glenohumeral ligament complex was repaired on the medial edge of the glenoid bone where the cartilage was removed. In model E, the cartilage on the glenoid rim was not removed, and the glenohumeral ligament complex was repaired on the glenoid edge. The load stresses on the anteroinferior area of the glenoid after Bankart repair with models G and E were measured using finite element analysis. RESULTS:The stress on the glenoid at 3-4 o'clock was 3.16 MPa in model G and 6.42 MPa in model E (P = .043). The stress at 4-5 o'clock was 1.68 MPa in model G and 4.53 MPa in model E (P = .043). The stress at 5-6 o'clock was 2.26 MPa in model G and 3.93 MPa in model E (P = .043). CONCLUSION:Significantly lower load stresses were observed at the anteroinferior rim of the glenoid in model G than in model E.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Inoue K,Suenaga N,Oizumi N,Yamaguchi H,Miyoshi N,Taniguchi N,Morita S,Kurata S,Tanaka Ydoi
10.1016/j.jse.2020.04.023subject
Has Abstractpub_date
2021-01-01 00:00:00pages
188-193issue
1eissn
1058-2746issn
1532-6500pii
S1058-2746(20)30369-4journal_volume
30pub_type
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journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Journal of shoulder and elbow surgery
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journal_title:Journal of shoulder and elbow surgery
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journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
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journal_title:Journal of shoulder and elbow surgery
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abstract::Rotator cuff tears are one of the most common causes of pain and disability in the upper extremity. With the use of an animal model, we studied the healing response of a controlled defect in the normal supraspinatus tendon and in a tendon with a reduced intrinsic healing capacity. In 36 Sprague-Dawley rats, defects (2...
journal_title:Journal of shoulder and elbow surgery
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,多中心研究,随机对照试验
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,评审
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更新日期:2012-03-01 00:00:00
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
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journal_title:Journal of shoulder and elbow surgery
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journal_title:Journal of shoulder and elbow surgery
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
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journal_title:Journal of shoulder and elbow surgery
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pub_type: 杂志文章,多中心研究
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journal_title:Journal of shoulder and elbow surgery
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journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
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