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26.02.2016 | Arthroscopy and Sports Medicine | Ausgabe 6/2016

Archives of Orthopaedic and Trauma Surgery 6/2016

Serial structural MRI evaluation of arthroscopy rotator cuff repair: does Sugaya’s classification correlate with the postoperative clinical outcomes?

Archives of Orthopaedic and Trauma Surgery > Ausgabe 6/2016
Eduardo A. Malavolta, Jorge Henrique Assunção, Frederico F. Ramos, Thiago C. Ferreira, Mauro E. C. Gracitelli, Marcelo Bordalo-Rodrigues, Arnaldo A. Ferreira Neto



Sugaya’s classification is the most commonly used for postoperative evaluation of rotator cuff repairs. However, the correlation between this classification and clinical outcomes after supraspinatus tendon repair were not performed with serial MRI examinations in standardized time intervals.

Materials and methods

This prospective case series involved 54 patients undergoing repair of the supraspinatus tendon tear. Magnetic resonance imaging (MRI, 1.5 T) was used to determine the Sugaya’s classifications at 3, 6, and 12 months, and these data were correlated with the visual analog scale for pain (VAS), Constant and University of California at Los Angeles (UCLA) assessments.


Patients with types I, II, and ≥III of Sugaya’s classification experienced pain of 1.27 ± 1.95, 1.00 ± 1.40, and 3.43 ± 3.36, respectively (p = 0.010), according to the VAS. The Constant and UCLA scales did not differ significantly. Type II predominated, though their percentage decreased over time (from 77.8 to 66.7 %), whereas type I became more frequent (from 1.9 to 20.4 %).


The pain was more intense in patients classified as types III, IV, or V of Sugaya’s classification. The postoperative appearance of the supraspinatus tendon was not correlated with the Constant and UCLA scales. The occurrence of type II, the most prevalent, decreased over time, whereas the occurrence of type I increased; these differences were not significant.
Level de evidence: prospective cohort evaluation—level III.

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