{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T17:03:57Z","timestamp":1785344637527,"version":"3.55.0"},"reference-count":70,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T00:00:00Z","timestamp":1775520000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T00:00:00Z","timestamp":1775520000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["arthroscopyjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To analyze existing literature assessing the rate and types of complications associated with platelet\u2010rich plasma (PRP) injections compared with alternative injectable therapies for the nonoperative treatment of rotator cuff pathology.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>PubMed, Embase, Web of Science, and Cochrane databases were queried in accordance with the Preferred Reporting Items for Systematic Reviews protocol for randomized\u2010controlled trials published prior to February 2025 that compared complications following PRP injection to a comparable injectable for rotator cuff pathology. Meta\u2010analysis, reported in odds ratios (OR), was conducted for subgroups of comparison injection, leukocyte concentration, exogenous activator, and number of injections.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      There were 19 studies included with a total of 1043 patients, 510 of whom received PRP injections. Nine (47%) studies reported zero complications. Across the 10 remaining studies, there were 102 total complications, 48 (47%) of which occurred after PRP injections. There was no difference in overall complication rate between the PRP (9.41%) and comparison (10.13%) groups (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.67), though PRP patients had significantly higher rates of frozen shoulder (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.01). The most common complications included persistent pain, frozen shoulder, worsening of tear, and bursitis. Sub\u2010analysis of 3 studies comparing PRP to saline injections found no difference in complications (OR\u2009=\u20091.62 [0.27\u20109.79],\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u200935.65%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.06) as did the 13 studies comparing PRP to corticosteroid (OR\u2009=\u20090.56 [0.27\u20101.16],\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20098.79%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.12), even when sub\u2010analyzed by leukocyte concentration (OR\u2009=\u20090.79 [0.38\u20101.65],\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.00%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.53), exogenous activator use (OR\u2009=\u20090.79 [0.38\u20101.65],\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.00%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.53), and injection number (OR\u2009=\u20090.56 [0.27\u20101.16],\n                      <jats:italic>I<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20098.79%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.12).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Results of this review suggest that PRP injections are generally safe for treating rotator cuff pathologies with a similar overall complication incidence to comparator injectables with no reports of serious events across all studies. PRP injections were more often complicated by adhesive capsulitis. The pooled complication rates for the PRP group were similar to corticosteroid and saline injections.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level II, systematic review and meta\u2010analysis of Level I and II randomized\u2010controlled trials.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/arj.70163","type":"journal-article","created":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T23:14:19Z","timestamp":1775603659000},"page":"1421-1433","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Platelet\u2010Rich Plasma Injections for the Treatment of Rotator Cuff Pathology Have Higher Complication Rates of Adhesive Capsulitis than Alternative Injectable Therapies: A Systematic Review and Meta\u2010analysis of Randomized Controlled Trials"],"prefix":"10.1002","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4669-0097","authenticated-orcid":false,"given":"Alexis","family":"Driscoll","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery Tufts Medical Center  Boston Massachusetts U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-3619-2197","authenticated-orcid":false,"given":"Sophia","family":"Griffin","sequence":"additional","affiliation":[{"name":"Tufts University School of Medicine  Boston Massachusetts U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriella","family":"Schreiner","sequence":"additional","affiliation":[{"name":"Tufts University School of Medicine  Boston Massachusetts U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen","family":"Fucaloro","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Boston Medical Center  Boston Massachusetts U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6288-2120","authenticated-orcid":false,"given":"Laura","family":"Krivicich","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Tufts Medical Center  Boston Massachusetts U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9928-0879","authenticated-orcid":false,"given":"Matthew","family":"Salzler","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Tufts Medical Center  Boston Massachusetts U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,7]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijosm.2021.10.006"},{"key":"e_1_2_7_3_1","volume-title":"Rotator Cuff Tendonitis","author":"Varacallo 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