Henri De Vroey1, Filip Staes2, Evie Vereecke3, Jos Vanrenterghem4, Jan Deklerck5, Geert Van Damme6, Hans Hallez7, Kurt Claeys8. 1. Department of Rehabilitation Sciences, KU Leuven Campus Bruges, Spoorwegstraat 12, 8200 Bruges, Belgium. Electronic address: henri.devroey@kuleuven.be. 2. Department of Rehabilitation Sciences, KU Leuven, Tervuursevest 101, 3001 Heverlee, Belgium. Electronic address: filip.staes@kuleuven.be. 3. Department of Development and Regeneration, KULAK, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium. Electronic address: vereecke@kuleuven.be. 4. Department of Rehabilitation Sciences, KU Leuven, Tervuursevest 101, 3001 Heverlee, Belgium. Electronic address: jos.vanrenterghem@kuleuven.be. 5. Department of Rehabilitation Sciences, KU Leuven Campus Bruges, Spoorwegstraat 12, 8200 Bruges, Belgium. Electronic address: jan.deklerck@kuleuven.be. 6. Department of Orthopaedic Surgery, AZ Sint-Lucas, Sint-Lucaslaan 29, 8310 Bruges, Belgium. Electronic address: geert.vandamme@stlucas.be. 7. Department of Computer Science, KU Leuven Campus Bruges, Spoorwegstraat 12, 8200 Bruges, Belgium. Electronic address: hans.hallez@kuleuven.be. 8. Department of Rehabilitation Sciences, KU Leuven Campus Bruges, Spoorwegstraat 12, 8200 Bruges, Belgium; Department of Rehabilitation Sciences, KU Leuven, Tervuursevest 101, 3001 Heverlee, Belgium. Electronic address: kurt.claeys@kuleuven.be.
Abstract
BACKGROUND: The aim of the present study is to compare sagittal gait kinematics of ankle, knee and hip joints between subjects with unicondylar and total knee arthroplasty and age matched healthy controls. Since unicondylar knee replacement is a less invasive procedure, which more closely preserves knee joint anatomy, we hypothesized that one year post unicondylar knee arthroplasty patients would demonstrate more normal gait patterns than patients with total knee arthroplasty. RESEARCH QUESTION: Do unicondylar and total knee arthroplasty patients display similar gait kinematics one year after surgery? METHODS: Fourteen subjects (8 posterior stabilized and 6 medial unicondylar knee replacements) that were one year post surgery, and 6 healthy control subjects underwent a 3D gait analysis and a physical examination (range of motion, muscle strength). Statistical parametric mapping was used to compare gait kinematics of the lower limbs between groups. Additionally, differences in peak angles and clinical outcomes were assessed using a one-way ANOVA between subjects analysis. RESULTS: Both knee replacement groups showed reduced knee flexion range of motion and reduced muscle strength at the operated leg compared to the control group. Subjects with TKA demonstrated reduced knee flexion at loading response and midstance of the gait cycle. Both UKA and TKA demonstrated significantly less knee flexion during swing. SIGNIFICANCE: The results of this study demonstrate arthroplasty-specific differences in muscle strength, range of motion and gait kinematics of the lower limb one year after knee surgery. Future planning of post-surgery follow-up should addresses these arthroplasty-specific weaknesses and gait deviations.
BACKGROUND: The aim of the present study is to compare sagittal gait kinematics of ankle, knee and hip joints between subjects with unicondylar and total knee arthroplasty and age matched healthy controls. Since unicondylar knee replacement is a less invasive procedure, which more closely preserves knee joint anatomy, we hypothesized that one year post unicondylar knee arthroplastypatients would demonstrate more normal gait patterns than patients with total knee arthroplasty. RESEARCH QUESTION: Do unicondylar and total knee arthroplastypatients display similar gait kinematics one year after surgery? METHODS: Fourteen subjects (8 posterior stabilized and 6 medial unicondylar knee replacements) that were one year post surgery, and 6 healthy control subjects underwent a 3D gait analysis and a physical examination (range of motion, muscle strength). Statistical parametric mapping was used to compare gait kinematics of the lower limbs between groups. Additionally, differences in peak angles and clinical outcomes were assessed using a one-way ANOVA between subjects analysis. RESULTS: Both knee replacement groups showed reduced knee flexion range of motion and reduced muscle strength at the operated leg compared to the control group. Subjects with TKA demonstrated reduced knee flexion at loading response and midstance of the gait cycle. Both UKA and TKA demonstrated significantly less knee flexion during swing. SIGNIFICANCE: The results of this study demonstrate arthroplasty-specific differences in muscle strength, range of motion and gait kinematics of the lower limb one year after knee surgery. Future planning of post-surgery follow-up should addresses these arthroplasty-specific weaknesses and gait deviations.
Authors: Sevgi Atar; Esma Demirhan; Haluk Cabuk; Kaya Turan; Süleyman Semih Dedeoglu; Ömer Kuru Journal: Indian J Orthop Date: 2021-10-26 Impact factor: 1.251