TY - JOUR
T1 - Gait analysis after total knee arthroplasty. Comparison of posterior cruciate retention and substitution
AU - Ishii, Yoshinori
AU - Terajima, Kazuhiro
AU - Koga, Yoshio
AU - Takahashi, Hideaki E.
AU - Bechtold, Joan E.
AU - Gustilo, Ramon B.
PY - 1998
Y1 - 1998
N2 - The objective of this study was to measure three-dimensional knee motion during gait in patients with total knee replacements which either retained the posterior cruciate ligament (n = 11), or required sacrifice of the posterior cruciate ligament and replacement of its function with a posterior stabilizing articular surface (n = 9). Clinically meaningful translations (anterior and posterior, medial and lateral, proximal and distal) and rotations (flexion and extension, internal and external rotation, abduction and adduction) were measured using an instrumented spatial linkage. Although patients from both groups were able to achieve passive full extension and a minimum of 95°flexion, some of their translations and rotations during free speed walking were consistently less than those in a group of healthy controls. Motion during the swing phase of gait was similar for both knee replacement groups. However, abduction and adduction and proximal and distal translation were larger (but neither difference was significant) for the patients with implants with a posterior stabilizing surface, which suggests that the stabilizing surface may not reliably provide as much stability in these directions as does retention of the posterior cruciate ligament.
AB - The objective of this study was to measure three-dimensional knee motion during gait in patients with total knee replacements which either retained the posterior cruciate ligament (n = 11), or required sacrifice of the posterior cruciate ligament and replacement of its function with a posterior stabilizing articular surface (n = 9). Clinically meaningful translations (anterior and posterior, medial and lateral, proximal and distal) and rotations (flexion and extension, internal and external rotation, abduction and adduction) were measured using an instrumented spatial linkage. Although patients from both groups were able to achieve passive full extension and a minimum of 95°flexion, some of their translations and rotations during free speed walking were consistently less than those in a group of healthy controls. Motion during the swing phase of gait was similar for both knee replacement groups. However, abduction and adduction and proximal and distal translation were larger (but neither difference was significant) for the patients with implants with a posterior stabilizing surface, which suggests that the stabilizing surface may not reliably provide as much stability in these directions as does retention of the posterior cruciate ligament.
KW - Gait analysis
KW - Posterior cruciate ligament retention
KW - Posterior cruciate ligament substitution
KW - Total knee arthroplasty
UR - http://www.scopus.com/inward/record.url?scp=0031741213&partnerID=8YFLogxK
U2 - 10.1007/s007760050058
DO - 10.1007/s007760050058
M3 - Article
C2 - 9811982
AN - SCOPUS:0031741213
SN - 0949-2658
VL - 3
SP - 310
EP - 317
JO - Journal of Orthopaedic Science
JF - Journal of Orthopaedic Science
IS - 6
ER -