Knee Instability:<i>An Orthoradiographic Study</i>

Edholm, Paul; Lindahl, Olof; Lindholm, Bernt; Myrnerts, Rune; Olsson, Karl-Erik; Wennberg, Erik

doi:10.3109/17453677608988755

Cited by 22 publications

(7 citation statements)

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“…In case of varus alignment, Brouwer et al showed an average of 2°more varus deviation in the standing position than in the supine position [9]. This may especially be relevant in case of lateral ligament laxity [22]. Sabharwal et al found a mean absolute difference of 13.4 mm mechanical axis deviation between supine and weight-bearing radiographs [14].…”

Section: Discussionmentioning

confidence: 96%

The value of the intra-operative clinical mechanical axis measurement in open-wedge valgus high tibial osteotomies

2012

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Section: Discussionmentioning

confidence: 96%

The value of the intra-operative clinical mechanical axis measurement in open-wedge valgus high tibial osteotomies

2012

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“…In patients with an increase in ligamentous laxity, the difference between the standing and supine WLR may be even greater than that found in our patients. Edholm et al (1976) in an orthoradiographic study with healthy persons, found that knee instability affects the HKA angle. Sanfridsson et al (1996) noted less varus alignment in the two-leg stance than in the one-leg stance WLR, because the one-leg stance forces the knee in varus against the lateral stabilizing structures.…”

Section: Discussionmentioning

confidence: 98%

The whole leg radiographStanding versus supine for determining axial alignment

Brouwer

Jakma

Bierma-Zeinstra

et al. 2003

Acta Orthopaedica Scandinavica

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“…The accuracy and reproducibility of measurement of the HKA angle has been shown to be within 2 degrees [11]. In non-OA knees the mean HKA angle is 0.9-1.6 degrees in varus [12-14]. The HKA-angle was measured preoperatively as a part of the indication for surgery and postoperatively during the correction period to determine the progress of the correction and to determine that the desired alignment was obtained.…”

Section: Methodsmentioning

confidence: 99%

Association between knee alignment and knee pain in patients surgically treated for medial knee osteoarthritis by high tibial osteotomy. A one year follow-up study

W‐Dahl

Roos

2009

BMC Musculoskelet Disord

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BackgroundThe association between knee alignment and knee pain in knee osteoarthritis (OA) is unclear. High tibial osteotomy, a treatment option in knee OA, alters load from the affected to the unaffected compartment of the knee by correcting malalignment. This surgical procedure thus offers the possibility to study the cross-sectional and longitudinal association of alignment to pain. The aims were to study 1) the preoperative association of knee alignment to preoperative knee pain and 2) the association of change in knee alignment with surgery to change in knee pain over time in patients operated on for knee OA by high tibial osteotomy.Methods182 patients (68% men) mean age 53 years (34 - 69) with varus alignment having tibial osteotomy by the hemicallotasis technique for medial knee OA were consecutively included. Knee alignment was assessed by the Hip-Knee-Ankle (HKA) angle from radiographs including the hip and ankle joints. Knee pain was measured by the subscale pain (0 - 100, worst to best scale) of the Knee injury and Osteoarthritis Outcome Score (KOOS) preoperatively and at one year follow-up. To estimate the association between knee alignment and knee pain multivariate regression analyses were used.ResultsMean preoperative varus alignment was 170 degrees (153 - 178) and mean preoperative KOOS pain was 42 points (3 - 86). There was no association between preoperative varus alignment and preoperative KOOS pain, crude analysis 0.02 points (95% CI -0.6 - 0.7) change in pain with every degree of HKA angle, adjusted analysis 0.3 points (95% CI -1.3 - 0.6).The mean postoperative knee alignment was 184 degrees (171 - 185). The mean change in knee alignment was 13 degrees (0 - 30). The mean change in KOOS pain was 32 (-16 - 83). There was neither any association between change in knee alignment and change in KOOS pain over time, crude analysis 0.3 point (95% CI -0.6 - 1.2), adjusted analysis 0.4 points (95% CI 0.6 - 1.4).ConclusionWe found no association between knee alignment and knee pain in patients with knee OA indicating that alignment and pain are separate entities, and that the degree of preoperative malalignment is not a predictor of knee pain after high tibial osteotomy.

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Knee Instability:An Orthoradiographic Study

Cited by 22 publications

References 0 publications

The value of the intra-operative clinical mechanical axis measurement in open-wedge valgus high tibial osteotomies

The value of the intra-operative clinical mechanical axis measurement in open-wedge valgus high tibial osteotomies

The whole leg radiographStanding versus supine for determining axial alignment

Association between knee alignment and knee pain in patients surgically treated for medial knee osteoarthritis by high tibial osteotomy. A one year follow-up study

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