{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T22:56:43Z","timestamp":1791932203206,"version":"4.3.4"},"reference-count":63,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,8,16]],"date-time":"2017-08-16T00:00:00Z","timestamp":1502841600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2017,8,16]],"date-time":"2017-08-16T00:00:00Z","timestamp":1502841600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2017,8,16]],"date-time":"2017-08-16T00:00:00Z","timestamp":1502841600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":["clinicalkey.jp","clinicalkey.com","clinicalkey.es","arthroscopyjournal.org","clinicalkey.fr","clinicalkey.com.au","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To investigate the 2\u2010year postoperative clinical and subjective outcomes after arthroscopic rotator cuff repair (ARCR) with xenologous porcine dermal patch augmentation compared with ARCR alone.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Patients aged 60\u00a0years or older with a complete supraspinatus (SSP) tendon tear underwent primary ARCR with a transosseous\u2010equivalent technique. By use of a matched\u2010pair comparative trial design, a consecutive series of 20 patients receiving additional xenologous porcine dermal patch augmentation (patch group) was matched by tear location with 20 patients who received ARCR only (control group). Prior conservative treatment failed in all patients. Patients with concomitant pathologies precluding accurate repair assessment, partial or open reconstruction, or a latissimus dorsi and\/or pectoralis major muscle transfer were excluded. Patients reported daily pain levels for 10\u00a0days after surgery. Clinical parameters and various patient\u2010reported outcome scores were documented preoperatively and at 3, 6, and 24\u00a0months after surgery. Repair integrity was determined by magnetic resonance imaging or ultrasound at 24\u00a0months. Adverse events were recorded. Group outcome differences were analyzed with\n                      <jats:italic>t<\/jats:italic>\n                      tests, Fisher exact tests, and mixed models.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Patients in both groups were aged 67\u00a0years on average (range, 60\u201074\u00a0years), and 70% of patients were men. Patients in the patch group had slightly more SSP fatty infiltration preoperatively. Patch surgical procedures were on average 22\u00a0minutes longer than control interventions (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .003). At 24\u00a0months, 4 patients and 9 patients were diagnosed with a recurrent SSP tendon defect in the control group (n\u00a0= 20) and patch group (n\u00a0= 19), respectively (relative risk, 2.4;\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .096). Of 11 defects (85%) identified as medial cuff failure, 8 occurred in the patch group. Pain rated by all patients decreased from postoperative day 1 to day 10 without any significant group difference (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .348). No significant group differences were noted for other outcome parameters, and recurrent defects had no relevant effect on functional outcomes. Local complications (including recurrent defects) occurred in 8 patients in the control group and 12 in the patch group (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .343).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Our pilot study supports the view that an SSP tear repair with porcine dermal xenograft augmentation does not benefit patients in terms of reducing the risk of a recurrent tendon defect or improving shoulder function up to 24\u00a0months after surgical repair.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, therapeutic study, retrospective comparative trial.<\/jats:p>\n                  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