Clinical Outcomes Comparing Two Prosthetic Knee Designs in Individuals With Unilateral Transfemoral Amputation in Turkey

Abstract

BACKGROUND: Clinical outcome assessments provide important input for the rehabilitation of individuals with transfemoral amputation. Differences in prosthetic knee designs may influence clinical outcomes.
 OBJECTIVE(S): The aim of this study was to compare functional mobility, balance, prosthetic satisfaction and quality of life in individuals with unilateral transfemoral amputation with microprocessor-controlled (MPK) and non-microprocessor knee designs (Non-MPK).
 METHODOLOGY: The study included ten experienced MPK (Rheo Knee) users (Group 1) and ten experienced Non-MPK (Total Knee® 2000) users (Group 2). For mobility; the 6 Minute Walk Test (6MWT), for balance; the Berg Balance Scale (BBS), Single Leg Stand Test (SLST) and Four Square Step Test (FSST), for quality of life; the Nottingham Health Profile (NHP) and for prosthetic satisfaction; the Satisfaction with Prosthesis Questionnaire (SATPRO) were administered.
 FINDINGS: 6MWT results of the MPK group were significantly higher than Non-MPK group (p <0.05). In the MPK group a strong negative correlation was found between the FSST and the 6MWT (r= -0.661, p=0.038). No statistically significant differences were found between the groups (p>0.05) comparing balance, prosthesis satisfaction and quality of life values.
 CONCLUSION: The findings will inform about the patient’s prognosis and the expected clinical outcomes when prescribing an MPK or an Non-MPK. Individuals with unilateral transfemoral amputation covered longer distances using an MPK compared to Non-MPK.
 Layman's Abstract
 Individuals living with an amputation above the knee are limited in mobility which effects their quality of life. Specific prosthetic knee designs may have a long-term impact on the quality of life. This study showed that prosthetic users can walk further with the Rheo knee as compared to those who are using the Total Knee® 2000. However, both groups seemed to be equally happy with their quality of life, equally satisfied with their prosthesis, and their balance capabilities appeared to be similar.
 Article PDF Link: https://jps.library.utoronto.ca/index.php/cpoj/article/view/35297/28053
 How To Cite: Yazgan A, Kutlutürk S, Lechler K. Clinical outcomes comparing two prosthetic knee designs in individuals with unilateral transfemoral amputation in Turkey. Canadian Prosthetics & Orthotics Journal. 2021;Volume 4, Issue 1, No.8. https://doi.org/10.33137/cpoj.v4i1.35297
 Corresponding Author: Ayse Yazgan,1) Össur Turkey Academy, Istanbul, Turkey; 2) İstanbul Medipol University Orthotics - Prosthetics Master of Science Program, Istanbul, Turkey.E-Mail: ayazgan@ossur.com
 ORCID ID: https://orcid.org/0000-0003-0744-503X

Impacts of Microprocessor-Controlled Versus Non-microprocessor-Controlled Prosthetic Knee Joints Among Transfemoral Amputees on Functional Outcomes: A Comparative Study

“…The study results confirm that users can detect an increase in ambulation when using MCPK versus NMCPK, correlating with previous study findings of increased self-reported ambulation and satisfaction [ 17 - 21 ]. Simultaneously, other studies [ 2 , 8 ] reported comparable step counts based on duration.…”