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Risk Factors for High Repair Tension During Rotator Cuff Repair.

Satoshi Miyake¹, Terufumi Shibata¹, Shunsuke Kobayashi¹

¹Department of Orthopedic Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.

Orthopaedic Journal of Sports Medicine

|October 14, 2024

Summary

This summary is machine-generated.

High repair tension (≥10 N) in rotator cuff repair can cause failure. Nontraumatic onset, medial-lateral tear length ≥20 mm, and anterior-posterior tear length ≥18 mm are key risk factors for excessive tension.

Keywords:

multivariate analysis repair tension risk factor rotator cuff tear univariate analysis

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Area of Science:

Orthopedic Surgery
Shoulder Reconstruction
Tear Repair Outcomes

Background:

Excessive repair tension, particularly ≥10 N, is linked to unsuccessful rotator cuff repair outcomes.
Identifying preoperative risk factors for high repair tension is crucial for improving surgical success rates.

Purpose of the Study:

To identify preoperative risk factors associated with high repair tension (≥10 N) during rotator cuff repair.
To investigate the hypothesis that older age, longer symptom duration, nontraumatic tear onset, fatty degeneration, and larger tear size predict high repair tension.

Main Methods:

Retrospective analysis of 80 patients with rotator cuff tears diagnosed via MRI.
Intraoperative measurement of repair tension using a digital tension meter.
Statistical analysis including t-tests and multivariate logistic regression to identify risk factors for tension ≥10 N.

Main Results:

Nontraumatic tear onset, mediolateral (ML) tear length ≥20 mm, and anteroposterior (AP) tear length ≥18 mm were identified as independent risk factors for high repair tension (P≤0.035).
Symptom duration ≥4 months and large/massive tears showed high odds of association with repair tension ≥10 N (P≤0.013).

Conclusions:

Nontraumatic onset, ML tear length ≥20 mm, and AP tear length ≥18 mm are independent predictors of high repair tension in rotator cuff surgery.
Further prospective studies are needed to validate these findings and their clinical significance for optimizing repair tension.