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Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_9 | Pages 68 - 68
1 May 2016
Muratsu H Takemori T Matsumoto T Annziki K Kudo K Yamaura K Minamino S Oshima T Maruo A Miya H Kuroda R Kurosaka M
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Introduction

To achieve well aligned and balanced knee is essential for the post-operative outcome in total knee arthroplasty (TKA). Gap balancing technique can adjust the bone cut depending on the soft tissue balance in addition to soft tissue releases. Therefore, gap balancing technique would be more advantageous in soft tissue balance comparing to measured resection technique (MRT) in which soft tissue balancing relayed on soft tissue releases alone. Nevertheless, the influence of surgical technique on the post-operative knee stability has not been fully investigated.

Objective

We introduced a new surgical technique (medial gap technique: MGT) according to modified gap technique regarding medial knee stability as important. The intra-operative soft tissue balance and post-operative knee stability were compared between MGT and MRT in posterior-stabilized (PS) TKA for varus type osteoarthritic knees.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_10 | Pages 138 - 138
1 May 2016
Yamaura K Muratsu H Tsubosaka M Annziki K Kudo K Minamino S Oshima T Matsumoto T Maruo A Miya H Kuroda R Kurosaka M
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Introduction

As the aging society progresses rapidly, the number of patients underwent total knee arthroplasty (TKA) is increasing especially for the elderly population. In Japan, the average age for TKA is around 75 years old. Japanese Orthopaedic Association indicated a new clinical entity of musculoskeletal ambulation disability symptom complex (MADS) to define the higher risk of fall and ambulatory disability in the elderly population in 2006. The diagnosing criteria for MADS consists of 2 simple performance tests. 3m timed up and go test (TUG) evaluates ambulatory function, and one leg standing time (ST) assesses balancing ability.

Objective

In this study, we analyzed the effect of TKA on the ambulatory function by quantitative measurement using 2 simple performances test: TUG and ST.