| Author/Editor | Majdič, Neža; Vidmar, Gaj; Burger, Helena | |
| Title | Establishing K-levels and prescribing transtibial prostheses using six-minute walk test and one-leg standing test on prosthesis | |
| Type | članek | |
| Vol. and No. | Letnik 43, št. 3 | |
| Publication year | 2020 | |
| Volume | str. 266-271 | |
| ISSN | 0342-5282 - International journal of rehabilitation research. Internationale Zeitschrift für Rehabilitationsforschung. Revue internationale de recherches de readaptation | |
| Language | eng | |
| Abstract | Rehabilitation programs after amputation often include fitting a prosthesis, but prescriptions vary under similar circumstances. The US Medicare Functional Classification Level (K-level) is a scale for describing functional abilities of persons after lower-limb amputation (from 0=no ability or potential to ambulate, to 4=prosthetic demands of a child/active adult/athlete). Different outcome measures are used to assess K-level, including six-minute walk test (6MWT). We attempted to predict the assigned K-level of unilateral transtibial prosthesis users from their results of 6MWT and one-leg standing test on prosthesis (OLSTP). Outpatients who had been rehabilitated and fitted with transtibial prosthesis at the University Rehabilitation Institute in Ljubljana in 2014 were included in a retrospective audit. The data were analysed using receiver-operating-characteristics curves, linear discriminant analysis, classification trees and ordinal logistic regression. Among the 120 patients (aged 39-90, mean 67years; 79% men), eight belonged to K1 level, 94 to K2, and 18 to K3 or K4; 61 could not stand on the prosthesis, eight stood on it for 1s, and 51 stood on it for 2s or more. With a simple classification rule based only on 6MWT (130m threshold for K2/K3/K4 vs. K1, 340m for K3/K4 vs. K1/K2), we observed sensitivity and specificity close to 90%. The more sophisticated statistical approaches yielded substantially similar and comparably accurate results. 6MWT and OLST could therefore be used as predictors for transtibial prosthesis prescription in clinical practice. | |
| Keywords | one-leg standing test on prosthesis six-minute walk test statistical prediction transtibial amputation US Medicare Functional Classification Level test stoje na eni nogi na protezi šest minutni test hoje statistična napoved transtibialna amputacija |