PMID- 25450417 OWN - NLM STAT- MEDLINE DCOM- 20150609 LR - 20220408 IS - 1526-3231 (Electronic) IS - 0749-8063 (Linking) VI - 31 IP - 2 DP - 2015 Feb TI - Clinical and structural outcomes after arthroscopic repair of full-thickness rotator cuff tears with and without platelet-rich product supplementation: a meta-analysis and meta-regression. PG - 306-20 LID - S0749-8063(14)00795-6 [pii] LID - 10.1016/j.arthro.2014.09.007 [doi] AB - PURPOSE: The purpose of this study was to perform a systematic review, meta-analysis, and meta-regression of all Level I and Level II studies comparing the clinical or structural outcomes, or both, after rotator cuff repair with and without platelet-rich product (PRP) supplementation. METHODS: A literature search of the PubMed and EMBASE databases was performed to identify all Level I or II studies comparing the clinical or structural outcomes, or both, after arthroscopic repair of full-thickness rotator cuff tears with (PRP+ group) and without (PRP- group) PRP supplementation. Data included outcome scores (American Shoulder and Elbow Surgeons [ASES], University of California Los Angeles [UCLA], Constant, Simple Shoulder Test [SST] and visual analog scale [VAS] scores) and retears diagnosed with imaging studies. Meta-analyses compared preoperative, postoperative, and gain in outcome scores and relative risk ratios for retears. Meta-regression compared the effect of PRP treatment on outcome scores and retear rates according to 6 covariates. Minimum effect sizes that were detectable with 80% power were also calculated for each study. RESULTS: Eleven studies were included in this review and a maximum of 8 studies were used for meta-analyses according to data availability. There were no statistically significant differences between the PRP+ and PRP- groups for overall outcome scores or retear rates (P > .05). Overall gain in the Constant score was decreased when liquid PRP was injected over the tendon surface compared with PRP application at the tendon-bone interface (-6.88 points v +0.78 points, respectively; P = .046); however, this difference did not reach the previously reported minimum clinically important difference (MCID) for Constant scores. When the initial tear size was greater than 3 cm in anterior-posterior length, the PRP+ group exhibited decreased retear rates after double-row repairs when compared with the PRP- group (25.9% v 57.1%, respectively; P = .046). Sensitivity power analyses revealed that most included studies were only powered to detect large differences in outcome scores between groups. CONCLUSIONS: There were no statistically significant differences in overall gain in outcome scores or retear rates between treatment groups. Gain in Constant scores was significantly increased when PRPs were applied at the tendon-bone interface when compared with application over the top of the repaired tendon. Retear rates were significantly decreased when PRPs were used for the treatment of tears greater than 3 cm in anterior-posterior length using a double-row technique. Most of the included studies were only powered to detect large differences in outcome scores between treatment groups. In addition, an increased risk for selection, performance, and attrition biases was found. LEVEL OF EVIDENCE: Level II, meta-analysis of Level I and Level II studies. CI - Copyright (c) 2015 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved. FAU - Warth, Ryan J AU - Warth RJ AD - Steadman Philippon Research Institute, Vail, Colorado, U.S.A. FAU - Dornan, Grant J AU - Dornan GJ AD - Steadman Philippon Research Institute, Vail, Colorado, U.S.A. FAU - James, Evan W AU - James EW AD - Steadman Philippon Research Institute, Vail, Colorado, U.S.A. FAU - Horan, Marilee P AU - Horan MP AD - Steadman Philippon Research Institute, Vail, Colorado, U.S.A. FAU - Millett, Peter J AU - Millett PJ AD - Steadman Philippon Research Institute, Vail, Colorado, U.S.A.; The Steadman Clinic, Vail, Colorado, U.S.A.. Electronic address: drmillett@thesteadmanclinic.com. LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't PT - Review PT - Systematic Review DEP - 20141114 PL - United States TA - Arthroscopy JT - Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association JID - 8506498 SB - IM CIN - Arthroscopy. 2015 Apr;31(4):597-8. PMID: 25842229 CIN - Arthroscopy. 2015 Apr;31(4):598. PMID: 25842230 MH - Arthroscopy MH - Humans MH - *Platelet-Rich Plasma MH - Rotator Cuff/physiopathology/*surgery MH - Rotator Cuff Injuries MH - Rupture MH - Tendon Injuries/physiopathology/*surgery/therapy MH - Treatment Outcome MH - Wound Healing EDAT- 2014/12/03 06:00 MHDA- 2015/06/10 06:00 CRDT- 2014/12/03 06:00 PHST- 2014/02/14 00:00 [received] PHST- 2014/09/08 00:00 [revised] PHST- 2014/09/09 00:00 [accepted] PHST- 2014/12/03 06:00 [entrez] PHST- 2014/12/03 06:00 [pubmed] PHST- 2015/06/10 06:00 [medline] AID - S0749-8063(14)00795-6 [pii] AID - 10.1016/j.arthro.2014.09.007 [doi] PST - ppublish SO - Arthroscopy. 2015 Feb;31(2):306-20. doi: 10.1016/j.arthro.2014.09.007. Epub 2014 Nov 14.