Biomechanical assessment of lateral ulnar collateral ligament repair and reconstruction with or without internal brace augmentation

© 2020 The Authors.

Bibliographische Detailangaben
Veröffentlicht in:JSES international. - 2020. - 4(2020), 2 vom: 01. Juni, Seite 224-230
1. Verfasser: Melbourne, Craig (VerfasserIn)
Weitere Verfasser: Cook, James L, Della Rocca, Gregory J, Loftis, Christopher, Konicek, John, Smith, Matthew J
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:JSES international
Schlagworte:Journal Article Elbow internal brace lateral ulnar collateral ligament posterolateral rotatory instability suture tape augmentation tendon reconstruction
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245 1 0 |a Biomechanical assessment of lateral ulnar collateral ligament repair and reconstruction with or without internal brace augmentation 
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520 |a BACKGROUND: Surgical treatment of posterolateral rotatory instability (PLRI) using primary repair or reconstruction of the lateral collateral ligament complex have proven inconsistent. This study aimed to test the hypothesis that augmentation of LUCL repair or palmaris longus tendon reconstruction using a suture tape augmentation would be associated with less rotational displacement and greater torque load to failure (LTF) compared with nonaugmented constructs 
520 |a METHODS: Cadaveric elbows (n = 12 matched pairs) were used. Baseline stiffness and displacement values were obtained. The LUCL was transected followed by repair alone, repair with augmentation, reconstruction with palmaris longus graft, or reconstruction with augmentation. Specimens were retested including torque LTF. Paired t tests were performed to assess the biomechanical effects of augmentation 
520 |a RESULTS: Augmentation was associated with higher LTF than repair and reconstruction alone (P = .008 and .047, respectively). Displacement was less with augmentation in reconstruction groups (P = .048) but not in repair groups. Suture tape augmentation maintained rotational stiffness better than repair alone (P = .01). Although reconstruction with augmentation maintained rotational stiffness better than nonaugmented reconstruction, the differences were not statistically significant (P = .057). Mode of failure for repair alone was predominantly suture pulling through repaired ligament. Augmented repairs primarily failed at the anchor-bone interface. Modes of failure for both reconstruction groups were similar, including graft tearing and/or slipping at the anchor 
520 |a CONCLUSION: When positioned in neutral forearm rotation and 90o of flexion to simulate postoperative conditions, augmentation of LUCL repair or tendon reconstruction using suture tape is associated with better resistance to rotational loads compared with nonaugmented repair or reconstruction, while maintaining near-native rotational stiffness 
650 4 |a Journal Article 
650 4 |a Elbow 
650 4 |a internal brace 
650 4 |a lateral ulnar collateral ligament 
650 4 |a posterolateral rotatory instability 
650 4 |a suture tape augmentation 
650 4 |a tendon reconstruction 
700 1 |a Cook, James L  |e verfasserin  |4 aut 
700 1 |a Della Rocca, Gregory J  |e verfasserin  |4 aut 
700 1 |a Loftis, Christopher  |e verfasserin  |4 aut 
700 1 |a Konicek, John  |e verfasserin  |4 aut 
700 1 |a Smith, Matthew J  |e verfasserin  |4 aut 
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