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Does the Femoral Head Size in Hip Arthroplasty Influence Lower Body Movements during Squats, Gait and Stair Walking?: A Clinical Pilot Study Based on Wearable Motion Sensors
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences.
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Physiotherapy.ORCID iD: 0000-0002-0366-4609
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.ORCID iD: 0000-0002-4918-9081
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2019 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 19, no 14, article id 3240Article in journal (Refereed) Published
Abstract [en]

A hip prosthesis design with larger femoral head size may improve functional outcomes compared to the conventional total hip arthroplasty (THA) design. Our aim was to compare the range of motion (RoM) in lower body joints during squats, gait and stair walking using a wearable movement analysis system based on inertial measurement units (IMUs) in three age-matched male groups: 6 males with a conventional THA (THAC), 9 with a large femoral head (LFH) design, and 8 hip- and knee-asymptomatic controls (CTRL). We hypothesized that the LFH design would allow a greater hip RoM, providing movement patterns more like CTRL, and a larger side difference in hip RoM in THAC when compared to LFH and controls. IMUs were attached to the pelvis, thighs and shanks during five trials of squats, gait, and stair ascending/descending performed at self-selected speed. THAC and LFH participants completed the Hip dysfunction and Osteoarthritis Outcome Score (HOOS). The results showed a larger hip RoM during squats in LFH compared to THAC. Side differences in LFH and THAC groups (operated vs. non-operated side) indicated that movement function was not fully recovered in either group, further corroborated by non-maximal mean HOOS scores (LFH: 83 +/- 13, THAC: 84 +/- 19 groups, vs. normal function 100). The IMU system may have the potential to enhance clinical movement evaluations as an adjunct to clinical scales.

Place, publisher, year, edition, pages
MDPI, 2019. Vol. 19, no 14, article id 3240
Keywords [en]
MEMS, gyroscopes, accelerometers, total hip arthroplasty, movement analysis
National Category
Orthopaedics Physiotherapy
Identifiers
URN: urn:nbn:se:umu:diva-162882DOI: 10.3390/s19143240ISI: 000479160300207PubMedID: 31340548OAI: oai:DiVA.org:umu-162882DiVA, id: diva2:1348722
Available from: 2019-09-05 Created: 2019-09-05 Last updated: 2019-10-07Bibliographically approved

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Grip, HelenaNilsson, Kjell GHäger, Charlotte G.Lundström, RonnieÖhberg, Fredrik

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