In vivo kinematics of mobile‐bearing knee arthroplasty in deep knee bending motion

Journal of Orthopaedic Research - Tập 22 Số 5 - Trang 1044-1049 - 2004
T. Watanabe1, Takaharu Yamazaki2, Kazuomi Sugamoto1, Tetsuya Tomita3, Hideo Hashimoto3, Daisuke Maeda4, Shinichi Tamura1, Takahiro Ochi1, Hideki Yoshikawa3
1Division of Computer Integrated Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2‐2 Yamadaoka, Suita, Osaka 565‐0871, Japan
2Division of Interdisciplinary Image Analysis, Osaka University Graduate School of Medicine, 2‐2 Yamadaoka, Suita, Osaka 565‐0871, Japan
3Department of Orthopaedics, Osaka University Graduate School of Medicine, 2–2 Yamadaoka, Suita, Osaka 565‐0871, Japan
4Department of Radiology, Osaka University Hospital, 2-15 Yamadaoka, Suita, Osaka, 565-0871, Japan.

Tóm tắt

AbstractThe current study aimed to analyze kinematics during deep knee bending motion by subjects with fully congruent mobile‐bearing total knee arthroplasties allowing axial rotation and anteroposterior (AP) gliding. Twelve subjects were implanted with Dual Bearing Knee prostheses (DBK, slot type: Finsbury Orthopaedics, Surrey, UK). These implants include a mobile‐bearing insert that is fully congruent with the femoral component throughout flexion and allows axial rotation and limited AP translation. Sequential fluoroscopic images were taken in the sagittal plane during loaded knee bending motion. In vivo kinematics were analyzed using a two‐ to three‐dimensional registration technique, which uses computer‐assisted design models to reproduce the spatial position of femoral and tibial components from single‐view fluoroscopic images. The average femoral component demonstrated 13.4° external axial rotation for 0–120° flexion. On average, the medial condyle moved anteriorly 6.2 mm for 0–100° flexion, then posteriorly 4.0 mm for 100–120° flexion. On average, the lateral condyle moved anteriorly 1.0 mm for 0–40° flexion, then posteriorly 8.7 mm for 40–120° flexion. The typical subject exhibited a lateral pivot pattern from extension to 60° flexion and a central pivot pattern from 60° to 100° flexion, patterns that are not usually observed in normal knees. Subsequently from 100° to 120° flexion, a rollback pattern was reproduced in which bilateral condyles moved backward. © 2004 Orthopaedic Research Society. Published by Elsevier Ltd. All rights reserved.

Từ khóa


Tài liệu tham khảo

10.1097/00003086-200107000-00023

10.1109/10.495283

10.1054/arth.2002.35793

10.1007/BF00435480

10.1097/00003086-199610000-00015

10.1097/00003086-199811000-00009

10.1097/01.blo.0000062385.79828.72

10.1302/0301-620X.60B3.581081

10.1115/1.3138397

10.1054/arth.2002.33550

10.1302/0301-620X.82B8.10716

10.1016/S0268-0033(98)00009-6

10.1097/00003086-198911000-00004

Insall JN, 2001, Surgery of the knee, 1717

10.1097/00003086-200210000-00022

10.1302/0301-620X.82B8.10717

10.1097/01.blo.0000062384.79828.3b

10.1016/0021-9290(85)90663-3

10.1302/0301-620X.82B8.10718

Pinskerova V, 2001, Surgery of the knee, 255

10.1016/S0883-5403(96)80036-2

10.1097/00003086-199908000-00019

10.1054/arth.2002.28731

10.1109/42.811310

Thông tin
Thông tin xuất bản

Journal of Orthopaedic Research

Tập 22 Số 5

1044-1049

Thông tin tác giả