Isokinetic muscle performance test can predict the status of rotator cuff muscle.

Clinical Orthopaedics and Related Research
Joo Han OhChung Hee Oh

Abstract

The isokinetic muscle performance test (IMPT) is a validated and objective method used to evaluate muscle function but it is unknown whether it correlates with severity of rotator cuff tears. We asked whether peak torque and total work deficit on the IMPT correlated with the preoperative manual muscle test (MMT), tear size, fatty degeneration (FD) of cuff, and postoperative cuff integrity in patients after rotator cuff surgery. We evaluated 221 patients who had undergone rotator cuff repair; of these 86 had the IMPT and a CT arthrogram (CTA) 1 year after surgery. We found a correlation (r = 0.125 approximately 0.464) between the preoperative IMPT and MMT. The IMPT deficit was greater in rotator cuff muscles with larger tears and greater degree of FD. Preoperative external and internal rotation deficits on the IMPT were related to the risk of cuff detachment on the postoperative CTA (r = 0.290, 0.319), and the postoperative abduction deficit was greater than 40% of the contralateral side indicating cuff detachment. The IMPT provides objective and quantitative data for estimating the preoperative status of rotator cuff tear and can provide baseline data for postoperative anatomic assessment in patients with rotator cuff disorders...Continue Reading

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Apr 7, 2009·Clinical Orthopaedics and Related Research·Joo Han OhChung Hee Oh

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Citations

Mar 1, 2012·Clinical Orthopaedics and Related Research·Lieven Franciscus De WildeBart M Berghs
Aug 21, 2015·Computer Methods in Biomechanics and Biomedical Engineering·Christoph EngelhardtAlexandre Terrier
Feb 23, 2018·The American Journal of Sports Medicine·Sung-Min RheeJoo Han Oh
Dec 4, 2012·Clinics in Orthopedic Surgery·Jong Pil YoonHyun-Joo Lee

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