Factors Associated with Prosthetic Looseness
in Lower Limb Amputees
Thong Phonghanyudh MD*,
Taweesak Sutpasanon MD*, Chanasak Hathaiareerug MD*,
ML Buddhibongsa Devakula MD**, Wipoo Kumnerddee MD*
Affiliation :
* Department of Rehabilitation Medicine, Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand
** Prostheses Foundation of H.R.H. the Princess Mother, Chiang Mai, Thailand
Objective : To determine the factors associated with prosthetic looseness in lower limb amputees in Sisaket province.
Material and Method: The present was a cross-sectional descriptive study. Subjects were lower limb amputees who previously
obtained prostheses and required prosthetic replacements at the mobile prosthetic laboratory unit under the Prostheses
Foundation of H.R.H. the Princess Mother at Khun Han Hospital, Sisaket province, in February 2013. Data including
participant characteristics, prosthetic looseness data, and various variables were collected by direct semi-structured
interview. Energy expenditures in physical activities were measured using the Thai version of the short format international
physical activity questionnaire. Data between participants with and without prosthetic looseness were compared to determine
prosthetic loosening associated factors.
Results : Among 101 participants enrolled, 33 (32.7%) had prosthetic looseness with average onset of 1.761.67 years.
Diabetes mellitus was the only significant factor associated with prosthetic looseness from both univariate and multivariate
analyses (HR = 7.05, p = 0.002 and HR = 5.93, p = 0.007 respectively).
Conclusion : Among the lower limb amputees in Sisaket province, diabetes mellitus was the only factor associated with
prosthetic looseness. Therefore, diabetic screening should be supplemented in lower limb amputee assessment protocol.
In addition, we recommend that amputees with diabetes mellitus should receive prosthesis check out at approximately
one year.
Keywords : Prosthetic looseness, Lower limb amputees, Prostheses Foundation, Sisaket province
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