Document Detail


Range of motion after total knee arthroplasty: the effect of implant design and weight-bearing conditions.
MedLine Citation:
PMID:  9802659     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Knee range of motion was determined in 60 patients to assess the effect of weight bearing on maximal knee flexion. Three patient subgroups were investigated: patients with normal knees, patients implanted with posterior cruciate-retaining (PCR) total knee arthroplasty (TKA), and patients implanted with posterior cruciate-substituting (PS) TKA. Maximal knee flexion was determined using videofluoroscopy both in a passive, non-weight-bearing mode and during active weight bearing. Flexion was diminished with weight bearing in all three subgroups (P < .045). Patients with normal knees exhibited significantly greater knee flexion than either TKA subgroup when measured either with or without weight bearing (P < .001). Knee flexion of both TKA subgroups was similar when measured passively without weight bearing. Patients with PS TKA demonstrated greater flexion than patients with PCR TKA when measured in weight bearing (P < .025), despite having less range of motion and lower clinical performance ratings preoperatively. Measurement of knee range of motion in a weight-bearing fashion may be a superior method of assessment of functional capabilities.
Authors:
D A Dennis; R D Komistek; J B Stiehl; S A Walker; K N Dennis
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of arthroplasty     Volume:  13     ISSN:  0883-5403     ISO Abbreviation:  J Arthroplasty     Publication Date:  1998 Oct 
Date Detail:
Created Date:  1999-01-07     Completed Date:  1999-01-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8703515     Medline TA:  J Arthroplasty     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  748-52     Citation Subset:  IM    
Affiliation:
Rose Musculoskeletal Research Laboratory, Rose Medical Center, Denver, Colorado, USA.
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MeSH Terms
Descriptor/Qualifier:
Aged
Arthroplasty, Replacement, Knee / instrumentation*
Female
Fluoroscopy
Follow-Up Studies
Humans
Knee Joint / physiopathology*,  radiography,  surgery
Knee Prosthesis*
Male
Middle Aged
Prosthesis Design
Range of Motion, Articular*
Treatment Outcome
Video Recording
Weight-Bearing / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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