Prevalence of proximal tibia vara in Indonesian population with knee osteoarthritis

Butarbutar, John; Mandagi, Tommy; Siahaan, Lasa Dhakka; Suginawan, Earlene Tasya; Elson,; Irvan, Irvan

doi:10.1016/j.jcot.2022.101871

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…In general,The development of KOA is often accompanied by dysfunction, deformity of the knee joint,and valgus and varus due to changes in the weight bearing axis of the lower limb.In order to simplify the description of the degree of lower limb deformity,the absolute value of MAD minus 0 mm was used to represent the degree of lower limb deformity [9] ,which was linearly positively correlated with the distance from the knee joint of the lower limb weight-bearing axis. JLCA can generally re ect the degree of deformity in the knee cavity [10] and is positively correlated with the size of joint space.LPFA can generally measure the relative position movement of the greater trochanteric of femur and the mechanical axis of femur.The increase of LPFA means the lateral shift of the greater trochanteric of femur relative to the mechanical axis of femur,which is likely to lead to increased hip abduction and decreased stability.…”

Section: Discussionmentioning

confidence: 99%

Gender affects spine-pelvic-lower limb force line:A cross-sectional imaging study of knee osteoarthritis

Yin,

Du,

et al. 2024

Preprint

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Objective:The aim of this study was to investigate the relationship between imaging indicators of knee osteoarthritis and the presence of gender orientation and risk factors. Methods:This study retrospectively included 318 patients with knee osteoarthritis.Based on Kellgren-Lawrence(KL)scoring system,These patients were classified as having limited knee osteoarthritis(LKOA) and severe knee osteoarthritis(SLOA).We measured the lumbar lordosis angle(LL),sacral slope angle(SS),pelvic incidence angle(PI),the mechanical axis deviation(MAD),Joint line convergence angle(JLCA) and lateral proximal femur angle(LPFA) in each patient to explore whether the correlation between these parameters is correlation under different gender conditions. Results:The study showed that in LKOA group,JLCA in female patients showed significant negative correlation with PI and LL(P<0.01),while SS in male patients showed significant positive correlation with MAD and LPFA(P<0.01).Multiple linear regression analysis revealed that PI was an independent risk factor for JLCA in female patients.In male patients,SS is an independent risk factor for MAD.However, in the SKOA group, there was no significant correlation between JLCA,MAD and LL,SS and PI in either male or female (P>0.05),suggesting that gender had less influence on the relationship between these parameters in the more severe stage of the disease. Conclusion:There were differences between lumbar vertebrae-pelvic parameters and knee line of force in patients with limited knee osteoarthritis of different genders.The JLCA was associated with Pelvic retroversion and straightening of lumbar curvature in women,while the shift of mechanical axis deviation was associated with Pelvis forward in men.In patients with severe knee osteoarthritis,lumbar-pelvic parameters were not associated with knee line of force,and gender differences disappeared.

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Section: Discussionmentioning

confidence: 99%

Gender affects spine-pelvic-lower limb force line:A cross-sectional imaging study of knee osteoarthritis

Yin,

Du,

et al. 2024

Preprint

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“…The calipered technique is based on the true-measured resection technique, wherein the tibial bone resection plane is determined by estimating the original tibial bone morphology after resurfacing the femur [9,14]. Asians often have proximal tibia vara, which affects constitutional varus limb alignment and is associated with medial tibia bone defects [8,16,17]. Therefore, the use of the calipered technique may result in an excessive residual postoperative tibial component and varus limb alignment in these patients [18].…”

Section: Introductionmentioning

confidence: 99%

Effects of Unrestricted Kinematically Aligned Total Knee Arthroplasty with a Modified Soft-Tissue Respecting Technique on the Deformity of Limb Alignment in Japanese Patients

Ishikawa,

Nagashima

et al. 2023

Medicina

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Background and Objectives: Unrestricted kinematic alignment total knee arthroplasty (KA-TKA) with a soft-tissue respecting technique (STRT) is a soft-tissue-dependent tibial resection entailing the restoration of the original soft-tissue tension using ligamentotaxis after resurfacing the femur, based on the concept of restoring the native or pre-osteoarthritis alignment in each patient. However, there is no consensus on the indications of unrestricted KA-TKA with the STRT. We modified the STRT, followed by an investigation of the effects of surgery on the postoperative hip–knee–ankle angle (HKAA). Materials and Methods: We retrospectively analyzed the clinical background data, including the preoperative and postoperative HKAA, of 87 patients who underwent unrestricted KA-TKA with the modified STRT. Univariate and multivariate analyses were performed to determine the factors affecting the postoperative HKAA. A receiver operating characteristic (ROC) curve was plotted to investigate the change in the cut-off values of preoperative HKAA with respect to the safe zone of the postoperative HKAA. We generated two regression models, the linear regression model and generalized additive model (GAM) using machine learning, to predict the postoperative HKAA. Results: Univariate and multivariate analyses revealed the preoperative HKAA as the factor most relevant to the postoperative HKAA. ROC analysis revealed that the preoperative HKAA exhibited a high predictive utility, with a cut-off value of −10°, when the safe range of postoperative HKAA was set at ±5°. The GAM was the superior machine learning model, indicating a non-linear association between the preoperative and postoperative HKAA. Patients with preoperative HKAAs ranging from −18° to 4° were more likely to fall within the ±5° safe range of the postoperative HKAA. Conclusions: The preoperative HKAA influences the postoperative HKAA in unrestricted KA-TKA with the modified STRT. Machine learning using the GAM may contribute to the selection of patients eligible for the surgical approach.

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Fixed-Bearing Unicompartmental Knee Arthroplasty in Tibia Vara Knees Results in Joint Surface Malalignment and Varus Joint Line Obliquity, but Does Not Affect Functional Outcomes at Greater Than 5 Years Follow-Up

Park,

Jin

et al. 2024

The Journal of Arthroplasty

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Prevalence of proximal tibia vara in Indonesian population with knee osteoarthritis

Cited by 3 publications

References 27 publications

Gender affects spine-pelvic-lower limb force line:A cross-sectional imaging study of knee osteoarthritis

Gender affects spine-pelvic-lower limb force line:A cross-sectional imaging study of knee osteoarthritis

Effects of Unrestricted Kinematically Aligned Total Knee Arthroplasty with a Modified Soft-Tissue Respecting Technique on the Deformity of Limb Alignment in Japanese Patients

Fixed-Bearing Unicompartmental Knee Arthroplasty in Tibia Vara Knees Results in Joint Surface Malalignment and Varus Joint Line Obliquity, but Does Not Affect Functional Outcomes at Greater Than 5 Years Follow-Up

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