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Pedobarographic Analysis in Total Knee Arthroplasty
- Source :
- The Journal of Knee Surgery. 30:951-959
- Publication Year :
- 2017
- Publisher :
- Georg Thieme Verlag KG, 2017.
-
Abstract
- Pedobarographic gait analysis is a useful tool for the determination of loading distributions and alterations on the lower extremity and their reflection on the foot sole after many orthopaedic surgical applications. To date, there have been no studies evaluating the relationship between component alignment and changes of pedobarographic gait analysis in total knee arthroplasty (TKA). We aimed to investigate the effects of TKA and prosthetic alignment on the distribution of pedobarographic parameters. Quantitative gait patterns of 47 patients were prospectively evaluated by using pedobarography 1 week before surgery and at the seventh month, on average, postoperatively. Component positions were assessed, and all applications were divided into three groups according to tibial component position as varus, neutral, and valgus. Pedobarographic results were compared between pre- and postoperative values for all applications and compared among the groups. Mean postoperative tibiofemoral angle was 5.4 degrees in valgus, and preoperative knee scores were markedly improved postoperatively. The range of tibial component alignment changed between 1 and 4 degrees in the varus and valgus groups. Plantar loading parameters (force and pressure) were significantly decreased in all operated knees, especially in forefoot and midfoot. In varus tibial components, plantar loading values decreased in midfoot and hindfoot. However, in the neutral and valgus groups, similar alterations of plantar loadings were obtained, which included decreasing in forefoot and midfoot with significant increase in hindfoot. Plantar loading distribution changed statistically significantly after TKA despite good clinical and radiographic results. Tibial component alignment was also responsible for plantar loading distribution. Tibial components in varus position create different foot loading characteristics compared with neutral and valgus aligned components. Pedobarographic evaluation in TKA allows clinicians to obtain a proper understanding of abnormal gait caused by component malposition.
- Subjects :
- Male
musculoskeletal diseases
total knee arthroplasty
medicine.medical_specialty
medicine.medical_treatment
pedobarography
foot loading
Cohort Studies
Weight-Bearing
03 medical and health sciences
0302 clinical medicine
medicine
Humans
component alignment
Orthopedics and Sports Medicine
Tibia
Range of Motion, Articular
Arthroplasty, Replacement, Knee
Pedobarography
Gait
Aged
Orthodontics
030222 orthopedics
biology
business.industry
Forefoot
030229 sport sciences
Middle Aged
Osteoarthritis, Knee
musculoskeletal system
biology.organism_classification
Arthroplasty
Surgery
body regions
Valgus
Treatment Outcome
Gait analysis
gait analysis
Female
Knee Prosthesis
Range of motion
business
human activities
Subjects
Details
- ISSN :
- 19382480 and 15388506
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- The Journal of Knee Surgery
- Accession number :
- edsair.doi.dedup.....ae0ef0d37ea9c83452b82e38a8bf5706