ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2025
L-shaped morphology is a key risk factor for delamination in degenerative full-thickness rotator cuff tears.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Does tear origin associate with tendon delamination in degenerative full thickness rotator cuff tears?JSES international · 2025Article
- L-shaped morphology is a key risk factor for delamination in degenerative full-thickness rotator cuff tears.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
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Abstract
purposeTo evaluate the relationship between delamination and tear patterns in degenerative full-thickness rotator cuff tears.
methodsThis retrospective cohort study was conducted on patients who underwent shoulder arthroscopy for rotator cuff tears between December 2020 and September 2024. The study included chronic, degenerative, full-thickness rotator cuff tears without concomitant shoulder pathology. Patients were grouped based on the presence of delamination, defined as the horizontal cleavage of the torn tendons. Age, sex, dominant extremity, symptom duration, amount of retraction, tear width and tear pattern (crescent-shaped, anterior L-shaped, posterior L-shaped and U-shaped) were compared between groups. Regression analysis was conducted to identify risk factors that may be associated with the presence of delamination.
resultsThe study included 130 patients, 75 with delamination (mean age 61.1 ± 8.8 years) and 55 without (mean age 61.1 ± 8.3 years). Demographic characteristics were similar among patients with and without delamination. The rate of anterior and posterior L-shaped tears was significantly higher in delaminated tears (24% and 33%, respectively) compared to non-delaminated tears (6% and 9%, respectively) (p = 0.003 and p = 0.001, respectively). Regression analysis demonstrated that anterior L-shaped tears and posterior L-shaped tears were significantly related to delamination (p = 0.002 and p = 0.001, respectively).
conclusionThis study demonstrates that anterior and posterior L-shaped tear patterns are significantly associated with delamination in degenerative full-thickness rotator cuff tears. LEVEL OF EVIDENCE: Level III, retrospective cohort study.
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