{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T11:34:55Z","timestamp":1792668895136,"version":"4.5.0"},"reference-count":24,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2013,9,3]],"date-time":"2013-09-03T00:00:00Z","timestamp":1378166400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2013,9,3]],"date-time":"2013-09-03T00:00:00Z","timestamp":1378166400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2013,9,3]],"date-time":"2013-09-03T00:00:00Z","timestamp":1378166400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,9,3]],"date-time":"2013-09-03T00:00:00Z","timestamp":1378166400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["arthroscopyjournal.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2013,10]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The purpose of this study was to retrospectively investigate magnetic resonance (MR) arthrography imaging findings associated with capsular laxity of the hip joint found at surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>After institutional review board approval, 27 patients who had arthroscopy reports that described the presence or absence of capsular laxity of the hip joint were identified over a 2\u2010year period. Preoperative MR images were retrospectively reviewed by 2 blinded radiologists. The following observations were recorded: (1) thickness, signal intensity, and defects of the anterior joint capsule; (2) thickness and signal intensity of the zona orbicularis; (3) width of the anterior and posterior joint recesses at the level of the femoral head; (4) presence of synovitis in the anterior joint recess; and (5) volume of intra\u2010articular contrast and degree of hip rotation. Intrarater and inter\u2010rater agreement was assessed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of the 27 patients, 17 were positive and 10 were negative for hip joint laxity at arthroscopy. The mean thickness of the anterior hip capsule was significantly different (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a0.0043), measuring 2.5 mm (95% confidence interval [CI], 2.3 to 2.8 mm) in those with hip laxity and 3.3 mm (95% CI, 2.8 to 3.8 mm) in those without laxity. The mean width of the anterior joint recess was 5.8 mm (95% CI, 5.4 to 6.3\u00a0mm) in those with laxity and 3.6 mm (95% CI, 3.3 to 3.9 mm) in those without laxity and was significantly different (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0&lt;\u00a0.0001). No other variables were considered useful because of a lack of significant differences between the 2 patient groups or low inter\u2010rater agreement.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>On the basis of 95% CIs, hip joint laxity at MR arthrography is associated with widening of the anterior hip joint recess (&gt;5 mm) and thinning of the adjacent joint capsule (&lt;3 mm) lateral to the zona orbicularis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, case\u2010control study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2013.07.261","type":"journal-article","created":{"date-parts":[[2013,8,30]],"date-time":"2013-08-30T11:45:56Z","timestamp":1377863156000},"page":"1615-1622","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":74,"title":["Capsular Laxity of the Hip: Findings at Magnetic Resonance Arthrography"],"prefix":"10.1002","volume":"29","author":[{"given":"Olaf","family":"Magerkurth","sequence":"first","affiliation":[{"name":"Department of Radiology University of Michigan Ann Arbor Michigan U.S.A."},{"name":"Department of Radiology University Children's Hospital Basel Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jon A.","family":"Jacobson","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Michigan Ann Arbor Michigan 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