The Effect of Ankle Rotation on Cutting of the Tibia in Total Knee Arthroplasty

Mizu-uchi, Hideki; Matsuda, Shuichi; Miura, Hiromasa; Higaki, Hidehiko; Okazaki, Ken; Iwamoto, Yukihide

doi:10.2106/jbjs.e.01288

Cited by 41 publications

(39 citation statements)

References 16 publications

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“…2, 3). All measurements were performed using image-analysis software (Real INTAGE, Tokyo, Japan) [23,24]. The axial images for every vertebra were obtained as follows.…”

Section: Methodsmentioning

confidence: 99%

Loss of apical vertebral derotation in adolescent idiopathic scoliosis: 2-year follow-up using multi-planar reconstruction computed tomography

et al. 2012

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“…2, 3). All measurements were performed using image-analysis software (Real INTAGE, Tokyo, Japan) [23,24]. The axial images for every vertebra were obtained as follows.…”

Section: Methodsmentioning

confidence: 99%

Loss of apical vertebral derotation in adolescent idiopathic scoliosis: 2-year follow-up using multi-planar reconstruction computed tomography

et al. 2012

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“…The factors that influence the onset and progression of osteoarthritis are not well understood, although it is known that lower extremity mal-alignment is related to joint problems [2,[5][6][7][8][9]. We found that many patients complained of pain in the ankle after total knee arthroplasty, and we surmised that a change in the alignment of the lower extremity caused by a relatively large knee varus correction angle might be one of the reasons for the discomfort.…”

Section: Resultsmentioning

confidence: 94%

Computer-Assisted TKR Vs Conventional TKR: Post-Operative Ankle Radiographic Finding and Ankle Clinical Assessment

Khongphaophong¹

2016

MOJOR

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“…Many authors173031 have reported variability in the identification of the transepicondylar axis. We have used the medial sulcus for the medial landmark in this study.…”

Section: Discussionmentioning

confidence: 99%

Component alignment and functional outcome following computer assisted and jig based total knee arthroplasty

Lad

Thilak

Thadi

2013

IJOO

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Background:Incorrect positioning of the implant and improper alignment of the limb following total knee arthroplasty (TKA) can lead to rapid implant wear, loosening, and suboptimal function. Studies suggest that alignment errors of > 3° are associated with rapid failure and less satisfactory function. Computer navigated systems have been developed to enhance precision in instrumentation during surgery. The aim of the study was to compare component alignment following computer assisted surgery (CAS) and jig based TKA as well as functional outcome.Materials and Methods:This is a prospective study of 100 knees to compare computer-assisted TKA and jig-based surgery in relation to femoral and tibial component alignment and functional outcome. The postoperative x-rays (anteroposterior and lateral) of the knee and CT scanogram from hip to foot were obtained. The coronal alignment of the femoral and tibial components and rotational alignment of femoral component was calculated. Knee society score at 24 months was used to assess the function.Results:Results of our study show that mean placement of the tibial component in coronal plane (91.3037°) and sagittal planes (3.6058°) was significantly better with CAS. The difference was statistically insignificant in case of mean coronal alignment of the femoral components (90.34210° in navigation group and 90.5444° in jig group) and in case of the mean femoral condylar twist angle (external rotation 2.3406° in navigation group versus 2.3593° in jig group).Conclusions:A significantly improved placement of the component was found in the coronal and sagittal planes of the tibial component by CAS. The placement of the components in the other planes was comparable with the values recorded in the jig-based surgery group. Functional outcome was not significantly different.

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The Effect of Ankle Rotation on Cutting of the Tibia in Total Knee Arthroplasty

Abstract: When an extramedullary alignment guide is used to prepare the tibia in total knee arthroplasty, varus alignment of the tibial component can occur because of a rotational mismatch between the proximal part of the tibia and the ankle joint.

Cited by 41 publications

References 16 publications

Loss of apical vertebral derotation in adolescent idiopathic scoliosis: 2-year follow-up using multi-planar reconstruction computed tomography

Loss of apical vertebral derotation in adolescent idiopathic scoliosis: 2-year follow-up using multi-planar reconstruction computed tomography

Computer-Assisted TKR Vs Conventional TKR: Post-Operative Ankle Radiographic Finding and Ankle Clinical Assessment

Component alignment and functional outcome following computer assisted and jig based total knee arthroplasty

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