Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Lower limb alignment and laxity measures before, during and after total knee arthroplasty : a prospective cohort study

Clarke, Jon V. and Deakin, Angela H. and Picard, Frederic and Riches, Philip E. (2017) Lower limb alignment and laxity measures before, during and after total knee arthroplasty : a prospective cohort study. Clinical Biomechanics. ISSN 0268-0033

[img] Text (Clarke-etal-CB-2017-Lower limb-alignment-and-laxity-measures-before-during-and-after-total-knee-arthroplasty)
Clarke_etal_CB_2017_Lower_limb_alignment_and_laxity_measures_before_during_and_after_total_knee_arthroplasty.pdf - Accepted Author Manuscript
Restricted to Repository staff only until 26 May 2018.
License: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 logo

Download (443kB) | Request a copy from the Strathclyde author

Abstract

Background. This study compared knee alignment and laxity in patients before, during and after total knee arthroplasty, using methodologically similar procedures, with an aim to help inform pre-operative planning.Methods. Eighteen male and 13 female patients were recruited, mean age 66 years (51-82) and mean body mass index of 33 (23-43). All were assessed pre- and postoperatively using a non-invasive infrared position capture system and all underwent total knee arthroplasty using a navigation system. Knee kinematic data were collected and comparisons made between preoperative clinical and intraoperative measurements for osteoarthritic knees, and between postoperative clinical and intraoperative measurements for prosthetic knees. Findings. There was no difference in unstressed coronal mechanical femoral-tibial angles for either osteoarthritic or prosthetic knees. However, for sagittal alignment the knees were in greater extension intraoperatively (osteoarthritic 5.2° p<0.001, prosthetic 7.2° p<0.001). For osteoarthritic knees, both varus and valgus stress manoeuvres had greater angular displacements intraoperatively by a mean value of 1.5° for varus (p=0.002) and 1.6° for valgus (p<0.001). For prosthetic knees, only valgus angular displacement was greater intraoperatively (0.9°, p=0.002).