{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T05:31:56Z","timestamp":1788845516828,"version":"build-2803163510"},"reference-count":25,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2016,4,29]],"date-time":"2016-04-29T00:00:00Z","timestamp":1461888000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2016,4,29]],"date-time":"2016-04-29T00:00:00Z","timestamp":1461888000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2016,4,29]],"date-time":"2016-04-29T00:00:00Z","timestamp":1461888000000},"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.com.au","clinicalkey.fr","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2016,8]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To determine whether the amount of pain relief after preoperative intra\u2010articular (IA) anesthetic injection predicts clinical and functional outcomes after hip arthroscopy, especially when controlling for the presence of chondral degeneration.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We identified patients who underwent IA injection and subsequent hip arthroscopy for labral pathology between 2007 and 2013 performed by a single surgeon. Inclusion criteria were ultrasound\u2010 or fluoroscopic\u2010guided IA anesthetic injection performed at our institution, prospectively documented pre\u2010 and postinjection numerical rating scale pain scores, and minimum 1\u2010year follow\u2010up postoperatively. Patients were divided into 2 groups, those who received &gt;50% pain relief from preoperative IA anesthetic injection and those who received \u226450% relief. Preoperative radiographs were reviewed, and degree of osteoarthritis was determined using the Tonnis classification system. Outcomes were assessed with Modified Harris Hip Score and Hip Outcome Score (HOS). Univariate and multivariate models were performed to assess whether percent pain relief correlated with outcome.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Of the 319 arthroscopic hip surgeries performed between 2007 and 2013, 115 (37%) patients were lost to follow\u2010up, 16 (5%) patients did not receive an IA injection, 16 (5%) patients had an injection containing gadolinium, and 40 (13%) patients completed injections at an outside institution. Five (2%) patients were excluded for a history of ipsilateral hip surgery, and 3 (1%) for a history of contralateral hip surgery, leaving 96 hips in 96 patients. There were 71 females (74%) and 25 males (26%) with a mean age of 37.6 \u00b1 14.0\u00a0years. Tonnis was grade 0, 1, and 2 for 26 (27%), 55 (56%), and 16 (17%) patients, respectively. Fifty\u2010one (53%) of the injections contained a corticosteroid. The mean pain relief after IA injection was 73% \u00b1 36% (range, 0% to 100%). Twenty\u2010six hips (26%) had \u226450% pain relief, whereas 70 (73%) had &gt;50% pain relief, and the median time interval from injection to surgery was 3 (range, &lt;1 to 20) months. Outcome scores were obtained at a mean 14.8 (range, 11 to 30) months after arthroscopic surgery. Postoperative mean Modified Harris Hip Score, HOS activities of daily living, and HOS\u2010Sport scores were 79.2 \u00b1 17.3, 82.6 \u00b1 17.3, and 67.4 \u00b1 28.2, respectively. There was no statistical correlation between percent pain relief and outcome. There was no significant difference in outcome scores between those with \u226450% and &gt;50% pain relief. Multivariate regression analysis showed no significant predictors of outcome, including age, gender, Tonnis grade, percent relief with IA injection, or type of surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In this study of patients undergoing hip arthroscopy for labral pathology, our data indicate that the amount of pain relief from IA injection may be a poor predictor of short\u2010term outcome, even when adjusting for chondral degeneration. Although anesthetic injections can be an important diagnostic tool in select patients, a combination of the clinical history, physical examination, and imaging findings is fundamental.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, therapeutic case series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2016.02.005","type":"journal-article","created":{"date-parts":[[2016,4,30]],"date-time":"2016-04-30T11:26:30Z","timestamp":1462015590000},"page":"1592-1600","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":34,"title":["Intra\u2010articular Diagnostic Injection Exhibits Poor Predictive Value for Outcome After Hip Arthroscopy"],"prefix":"10.1002","volume":"32","author":[{"given":"Aaron J.","family":"Krych","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul L.","family":"Sousa","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander H.","family":"King","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William M.","family":"Engasser","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruce A.","family":"Levy","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery Mayo Clinic Rochester Minnesota U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,4,29]]},"reference":[{"key":"e_1_2_2_2_2","first-page":"591","article-title":"Use of fluoroscopically guided intra\u2010articular hip injection in differentiating the pain source in concomitant hip and lumbar spine arthritis","volume":"36","author":"Pateder D.B.","year":"2007","journal-title":"Am J Orthop (Belle Mead NJ)"},{"key":"e_1_2_2_3_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504266480"},{"key":"e_1_2_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2005.08.017"},{"key":"e_1_2_2_5_2","first-page":"518","article-title":"Intra\u2010articular bupivacaine hip injection in differentiation of coxarthrosis from referred thigh pain: A 10 year study","volume":"69","author":"Faraj A.A.","year":"2003","journal-title":"Acta Orthop 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