Abstract

BackgroundTo compare the clinical efficacy of platelet rich plasma (PRP) subacromial injection and extracorporeal shock wave therapy (ESWT) on refractory non-calcific partial thickness supraspinatous tendon tear.ResultsSignificant improvement in all outcome measures achieved in both groups at 4 weeks follow-up period (the end of treatment course) (P< 0.05). At 12 weeks follow-up period, group I, showed significant improvement in all outcome measures compared to baseline and group II; however, in group II, there was no significant difference compared to baseline; moreover, deterioration in the previous improvement was noticed.ConclusionBoth PRP (group I) and ESWT (group II) are effective therapeutic methods in the management of refractory non-calcific partial thickness supraspinatous tendon tear; however, PRP (group I) has better long-term effects on both pain and function.

Highlights

  • To compare the clinical efficacy of platelet rich plasma (PRP) subacromial injection and extracorporeal shock wave therapy (ESWT) on refractory non-calcific partial thickness supraspinatous tendon tear

  • No significant differences were found in the baseline characteristics of the study population including age, sex, pain duration, affected side between the PRP group and the ESWT group at baseline (p > 0.05) (Table 2)

  • Most of the tears were found at the articular surface 53.3% in group I and 66.7 % in group II and to a lesser extent the bursal and interstitial tears (20% group I, 20% group II, and 26.7% group I, 13.3% group II respectively), and the most common associated shoulder lesion by Musculoskeletal ultrasound (MSUS) examination is subacromial bursitis (60%) in group I and (46.7%) in group II

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Summary

Introduction

To compare the clinical efficacy of platelet rich plasma (PRP) subacromial injection and extracorporeal shock wave therapy (ESWT) on refractory non-calcific partial thickness supraspinatous tendon tear. Rotator cuff consists of four tendons: supraspinatus, infraspinatus, subscapularis, and teres minor. Rotator cuff tendons arrange in a flat horseshoe flattened layer and converge together to inserts onto the head of the humerus [2]. Partial thickness rotator cuff tear (PTRCT) is caused by either intrinsic or extrinsic mechanisms; intrinsic mechanisms are much more predominant [3]. The supraspinatus tendon tear is the most common tendon involved in both partial and complete rotator cuff tears [4, 5]. Musculoskeletal ultrasound (MSUS) has been recently used for screening of rotator cuff tears; its value can be limited due to the difficulties to differentiate PTRCTs from

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