Roentgenographic assessment of the hip-knee-ankle axis in medial gonarthrosis. A study of reproducibility.
A preoperative reliable recording of the knee alignment is necessary to calculate the correct wedge at high tibial osteotomy for medial gonarthrosis. To determine the reproducibility of the hip-knee-ankle angle (HKA), a preoperative, whole lower limb roentgenogram was obtained twice in eight patients, and each roentgenogram was judged by two radiologists. Assessment of the HKA had a variability of at most 2 degrees, which is highly significant for a reliable calculation of the wedge at tibial osteotomy.
Odenbring
S
S
Department of Orthopedics, Central Hospital, Kristianstad, Sweden.
Berggren
A M
AM
Peil
L
L
D000842:Ankle / Q000000981:diagnostic imaging* / Q000473:pathology; D000886:Anthropometry / Q000379:methods*; D001168:Arthritis / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D005069:Evaluation Studies as Topic; D006615:Hip / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology; D015588:Observer Variation; D010027:Osteotomy; D011300:Preoperative Care; D011859:Radiography; D015203:Reproducibility of Results