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

Pol, G.J. van de; Verdonschot, Nico; Kampen, A. van

doi:10.1016/j.knee.2012.02.003

Cited by 28 publications

(26 citation statements)

References 25 publications

(28 reference statements)

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“…We found that, when the target correction angle was set at a mechanical axis deviation of 62.5% as recommended, [10] the mean HKA changed from 6.9° before surgery to −3.1° after surgery, and the knee score improved significantly. Because a mechanical axis deviation of 62.5% is reported to correspond to 3.1° valgus, [14] the target alignment on the coronal plane was achieved, confirming medial open-wedge HTO in our patient population resulted in favorable clinical outcomes.…”

Section: Discussionsupporting

confidence: 71%

Large deformity correction in medial open-wedge high tibial osteotomy may cause degeneration of patellofemoral cartilage

et al. 2019

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To evaluate retrospectively any association between the degree of deformity correction by medial open-wedge high tibial osteotomy (HTO) and patellofemoral joint degeneration. We hypothesized that development of patellofemoral joint degeneration depended on the degree of intraoperative deformity correction. Fifty-seven patients who underwent medial open-wedge HTO for treatment of osteoarthritis in one knee were included in this study. Knees were classified into degeneration (D) and non-degeneration (ND) groups according to worsening of the patellar and/or femoral trochlear cartilage at the time of hardware removal (D group, 27 knees) and no degeneration or improvement (ND group, 30 knees). We compared pre- to post-surgery change in hip-knee-ankle angle (HKA) and medial-proximal-tibial angle (MPTA), open-wedge HTO correction angle, and arthroscopic findings between groups. Mean age, height, weight, and body mass index were 54.1 ± 9.9 years, 160.4 ± 8.7 cm, 66.4 ± 12.1 kg, and 25.7 ± 3.3 kg/m 2 , respectively. Change in both HKA and MPTA differed significantly between groups. The MPTA cut-off values to predict patellofemoral degeneration were determined to be 10°, associated with an AUC of 0.75 (95% confidence interval [CI] 0.62–0.87). This study evaluated retrospectively the effect of the correction angle during medial open-wedge HTO on patellofemoral joint degeneration. If deformity correction exceeds an MPTA of 10° during open-wedge HTO, degeneration of patellofemoral joint needs to be considered. Level of evidence: Level IV.

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Section: Discussionsupporting

confidence: 71%

Large deformity correction in medial open-wedge high tibial osteotomy may cause degeneration of patellofemoral cartilage

et al. 2019

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“…The "n" in our study is based on previous studies similar to ours. With this criterion, we determined a number of patients similar to publications with the highest number of patients [9] [10] [11] [12]. No patient was submitted to a new examination due to the present study.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Intraobserver and Interobserver Reliability of Mechanical Axis Alignment Measure of the Lower Limb through the Panoramic Radiograph in Patients in the Preoperative and Postoperative Periods of Total Knee Arthroplasty

Matos¹,

Faria²,

Pavão³

et al. 2020

OJO

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Objective: To evaluate intraobserver and interobserver reliability of the measurement of the mechanical axis of the lower limb by means of the panoramic radiograph of lower limbs by physicians with different levels of medical practice. Method: A retrospective cross-sectional study with preoperative and postoperative radiographic analysis of a group of 100 patients submitted to total knee arthroplasty. Results: It was observed that there is a highly significant intraobserver and interobserver agreement (p < 0.0001), both preoperatively and postoperatively, among four observers with different training levels. Conclusion: The panoramic radiograph of the lower limbs is a reliable method for measuring the mechanical axis of the lower limb in patients submitted to total knee arthroplasty, regardless of the level of medical practice of the evaluator.

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“…After institutional ethical committee approval, pilot study was conducted using the described technique on 15 patients diagnosed with Primary OA knee (as per the American college of rheumatology criteria) [6] …”

Section: Methodsmentioning

confidence: 99%

“…These include radiographic and CT scanogram, computer assisted navigational tools, intraoperative fluoroscopy with the use of an electrocautery cord [6]. These methods determine the axis in a supine, non-weight bearing position.…”

Section: Introductionmentioning

confidence: 99%

An Innovative Method of Assessing the Mechanical Axis Deviation in the Lower Limb in Standing Position

Kamath

Danda

Jayasheelan

et al. 2016

JCDR

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

Cited by 28 publications

References 25 publications

Large deformity correction in medial open-wedge high tibial osteotomy may cause degeneration of patellofemoral cartilage

Large deformity correction in medial open-wedge high tibial osteotomy may cause degeneration of patellofemoral cartilage

Evaluation of Intraobserver and Interobserver Reliability of Mechanical Axis Alignment Measure of the Lower Limb through the Panoramic Radiograph in Patients in the Preoperative and Postoperative Periods of Total Knee Arthroplasty

An Innovative Method of Assessing the Mechanical Axis Deviation in the Lower Limb in Standing Position

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