Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/118875
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dc.contributor.authorThewlis, D.en
dc.contributor.authorBahl, J.en
dc.contributor.authorFraysse, F.en
dc.contributor.authorCurness, K.en
dc.contributor.authorArnold, J.en
dc.contributor.authorTaylor, M.en
dc.contributor.authorCallary, S.en
dc.contributor.authorSolomon, L.en
dc.date.issued2019en
dc.identifier.citationThe bone & joint journal, 2019; 101-B(4):415-425en
dc.identifier.issn2049-4394en
dc.identifier.issn2049-4408en
dc.identifier.urihttp://hdl.handle.net/2440/118875-
dc.description.abstractAIMS:The purpose of this exploratory study was to investigate if the 24-hour activity profile (i.e. waking activities and sleep) objectively measured using wrist-worn accelerometry of patients scheduled for total hip arthroplasty (THA) improves postoperatively. PATIENTS AND METHODS:A total of 51 THA patients with a mean age of 64 years (24 to 87) were recruited from a single public hospital. All patients underwent THA using the same surgical approach with the same prosthesis type. The 24-hour activity profiles were captured using wrist-worn accelerometers preoperatively and at 2, 6, 12, and 26 weeks postoperatively. Patient-reported outcomes (Hip Disability and Osteoarthritis Outcome Score (HOOS)) were collected at all timepoints except two weeks postoperatively. Accelerometry data were used to quantify the intensity (sedentary, light, moderate, and vigorous activities) and frequency (bouts) of activity during the day and sleep efficiency. The analysis investigated changes with time and differences between Charnley class. RESULTS:Patients slept or were sedentary for a mean of 19.5 hours/day preoperatively and the 24-hour activity pattern did not improve significantly postoperatively. Outside of sleep, the patients spent their time in sedentary activities for a mean of 620 minutes/day (sd 143) preoperatively and 641 minutes/day (sd 133) six months postoperatively. No significant improvements were observed for light, moderate, and vigorous intensity activities (p = 0.140, p = 0.531, and p = 0.407, respectively). Sleep efficiency was poor (< 85%) at all timepoints. There was no postoperative improvement in sleep efficiency when adjusted for medications (p > 0.05). Patient-reported outcome measures showed a significant improvement with time in all domains when compared with preoperative levels. There were no differences with Charnley class at six months postoperatively. However, Charnley class C patients were more sedentary at two weeks postoperatively when compared with Charnley class A patients (p < 0.05). There were no further differences between Charnley classifications. CONCLUSION:This study describes the 24-hour activity profile of THA patients for the first time. Prior to THA, patients in this cohort were inactive and slept poorly. This cohort shows no improvement in 24-hour activity profiles at six months postoperative. Cite this article: Bone Joint J 2019;101-B:415-425.en
dc.description.statementofresponsibilityD. Thewlis, J. S. Bahl, F. Fraysse, K. Curness, J. B. Arnold, M. Taylor, S. Callary, L. B. Solomonen
dc.language.isoenen
dc.publisherBritish Editorial Society of Bone & Joint Surgeryen
dc.rights© 2019 The British Editorial Society of Bone & Joint Surgeryen
dc.subjectAccelerometry; total hip arthroplasty; hip replacement; physical activity; sleepen
dc.titleObjectively measured 24-hour activity profiles before and after total hip arthroplastyen
dc.typeJournal articleen
dc.identifier.rmid0030112528en
dc.identifier.doi10.1302/0301-620X.101B4.BJJ-2018-1240.R1en
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/1126229en
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/1120560en
dc.identifier.pubid466719-
pubs.library.collectionOrthopaedics and Trauma publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidThewlis, D. [0000-0001-6614-8663]en
dc.identifier.orcidArnold, J. [0000-0002-1158-8917]en
dc.identifier.orcidCallary, S. [0000-0002-2892-5238]en
dc.identifier.orcidSolomon, L. [0000-0001-6254-2372]en
Appears in Collections:Orthopaedics and Trauma publications

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