Predictive Factors of Retear in Patients With Repaired Rotator Cuff Tear on Shoulder MRI
- 1 January 2018
- journal article
- research article
- Published by American Roentgen Ray Society in American Journal of Roentgenology
- Vol. 210 (1), 134-141
- https://doi.org/10.2214/ajr.17.17915
Abstract
OBJECTIVE. This study aimed to find independent prognostic factors related to retear of the rotator cuff tendon in patients with repaired full-thickness supraspinatus tendon tear by evaluation of pre- and postoperative MR images. MATERIALS AND METHODS. Shoulder MR images were retrospectively analyzed for 83 patients who had undergone arthroscopic or open rotator cuff repair with acromioplasty for full-thickness supraspinatus tendon tear from April 2014 to March 2015. On preoperative MR images, the type of rotator cuff tear, extent of retraction of torn tendon, anteroposterior (AP) dimension of torn tendon, signal intensity of tear edge, degree of fat infiltration in supraspinatus and infraspinatus muscles, and acromiohumeral interval (AHI) were assessed. Postoperative cuff integrity seen on MR images was classified into five categories according to the Sugaya classification system, and patients were categorized into retear or intact groups. Factors assessed on preoperative MR images were compared between the two groups. RESULTS. The overall retear rate was 57.8%. Significant differences were observed between the retear and intact groups in terms of the mean values of the extent of tendon retraction (20.4 vs 11.7 mm), AP dimension of the tear (16.1 vs 11.4 mm), AHI (6.8 vs 8.7 mm), and degree of fat infiltration of the supraspinatus and infraspinatus muscles (for the supraspinatus muscle, 3, 30, and 15 patients in the retear group vs 5, 27, and three patients in the intact group had Goutallier grade 1, grade 2, and grades 3 and 4 infiltration, respectively; for the infraspinatus muscle, 27, 12, and 9 patients in the retear group vs 29, 5, and one patient in the intact group had Goutallier grade 1, grade 2, and grades 3 and 4 infiltration, respectively). Multivariable analysis revealed that AHI and degree of tendon retraction were independent predictive factors affecting retear of rotator cuff after repair. CONCLUSION. The retear rate of repaired rotator cuff tendon was about 57.8%. Independent prognostic factors of retear were degree of tendon retraction and AHI on preoperative MR images.Keywords
This publication has 32 references indexed in Scilit:
- Prospective evaluation of arthroscopic rotator cuff repairs at 5 years: part II–prognostic factors for clinical and radiographic outcomesJournal of Shoulder and Elbow Surgery, 2011
- The association between retraction of the torn rotator cuff and increasing expression of hypoxia inducible factor 1α and vascular endothelial growth factor expression: an immunohistological studyBMC Musculoskeletal Disorders, 2010
- Natural History of Fatty Infiltration and Atrophy of the Supraspinatus Muscle in Rotator Cuff TearsClinical Orthopaedics and Related Research, 2010
- Imaging of TendonsSports Health: a Multidisciplinary Approach, 2009
- Measurement of blood flow in the rotator cuff using laser Doppler flowmetryThe Journal of Bone and Joint Surgery. British volume, 2008
- Correlation of atrophy and fatty infiltration on strength and integrity of rotator cuff repairs: A study in thirteen patientsJournal of Shoulder and Elbow Surgery, 2007
- Fatty Infiltration and Atrophy of the Rotator Cuff do not Improve after Rotator Cuff Repair and Correlate with Poor Functional OutcomeThe American Journal of Sports Medicine, 2007
- Magnetic Resonance Imaging for Supraspinatus Muscle Atrophy After Cuff RepairClinical Orthopaedics and Related Research, 2002
- Atrophy of the supraspinatus belly Assessment by MRI in 55 patients with rotator cuff pathologyActa Orthopaedica, 1996
- Fatty Muscle Degeneration in Cuff RupturesClinical Orthopaedics and Related Research, 1994