[Assessment of limp in patients with coxarthrosis--three-dimensional measurement of the pelvic rotation].
To assess the gait characteristics of the patients with coxarthrosis objectively, the rotation of the pelvis during ambulation was measured on the frontal, sagittal and horizontal planes using 3 gas-rate-sensors(Rotational Angle Measurement System G-2210, Anima Inc., Tokyo). In the normal subjects, the waveforms of the rotational angle on the frontal plane were symmetrical, highly reproducible and had 2 peaks. In contrast, the waveforms of the patients were asymmetrical and poorly reproducible. This was shown objectively using Fourier transform technique. The mean rotational angle of the patients was smaller than that of the normal subjects on the frontal plane, and larger on the sagittal plane. We can distinguish the patients from the normal subjects by observation of the waveform on the frontal plane and the ratio of the rotational angle on the sagittal plane to that on the frontal plane.
Kawate
K
K
Department of Orthopedic Surgery, Nara Medical University, Japan.
Ohneda
Y
Y
Kakihana
T
T
Tamai
S
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005684:Gait / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009983:Orthopedic Equipment; D015207:Osteoarthritis, Hip / Q000503:physiopathology*; D010388:Pelvis / Q000503:physiopathology*; D012399:Rotation