Medial Torsion of the Tibia in Japanese Patients With Osteoarthritis of the Knee

Nagamine, Ryuji; Miyanishi, Keita; Miura, Hiromasa; Urabe, Ken; Matsuda, Shinya; Iwamoto, Yukihide

doi:10.1097/00003086-200303000-00028

Cited by 75 publications

(51 citation statements)

References 10 publications

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“…Nagamine et al [18] demonstrated that the foot could be severely rotated internally if the medial 1/3 of the tibial tuberosity was used as a guide to rotational alignment in patients with severe medial torsion of the tibia. In patients from East Asian countries, medial torsion of the tibia should be taken into account, because it can aggravate rotational mismatch.…”

Section: Discussionmentioning

confidence: 99%

Synchronisation of tibial rotational alignment with femoral component in total knee arthroplasty

Lee

Seo

Moon

2007

International Orthopaedics (SICO

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The rotational axis of the tibial component in total knee arthroplasty described by Insall is generally accepted, but rotational mismatch between the femoral and the tibial components can occur because the alignment of each component is determined separately. We developed a connecting instrument to synchronise the axis of the tibia to the axis of the femur. We compared the rotational axis of the tibial component using our method and medial one third of tibial tuberosity (Insall's reference) in 70 consecutive TKAs. The rotational axis of the tibial component from the femoro-tibial synchronisation was rotated internally 13.8°± 5.8°(range, 2°-24°) more than the axis of Insall's reference. Eighty three percent of patellae tracked centrally and the patellae tilt measured 2.2°on average. More attention should be given to the rotational congruency between the femorotibial components, because the recent prosthetic design has more conforming articular surfaces.Résumé La rotation axiale du composant tibial dans la prothèse totale du genou décrite par Insall est généralement acceptée mais elle peut poser problème lorsqu'il existe un trouble de rotation sur le composant fémoral et le composant tibial du fait d'une détermination séparée de la position de chaque composant au moment de l'implantation. Nous avons pour cela développé un instrument qui permet de synchroniser l'axe du tibia et l'axe du fémur. Nous avons comparé la rotation axiale du composant tibial en utilisant notre méthode à propos de 70 prothèses totales consécutives du genou. L'axe de rotation après synchronisation des deux composants a été noté en rotation interne. Cette rotation interne est plus importante que celle prévue par l'axe de référence d'Insall qui est représenté par le tiers interne de la tubérosité tibio-intérieure. 83% des rotules avaient une course normale et un accrochage rotulien a été noté dans 2,2% en moyenne. Une attention particulière doit être portée à la congruence en rotation des éléments fémoro-tibiaux pendant l'implantation d'une PTG d'autant que cette congruence est plus importante dans les nouveaux dessins de prothèses totales du genou récentes.

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Section: Discussionmentioning

confidence: 99%

Synchronisation of tibial rotational alignment with femoral component in total knee arthroplasty

Lee

Seo

Moon

2007

International Orthopaedics (SICO

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“…I think many issues should be considered. For example, the tibia has more torsion in Asian people compared to Western population [19]. This would possibly cause malposition of the extramedullary guide.…”

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confidence: 99%

Clinical Faceoff: Do We Need Special Strategies for Asian Patients with TKA?

Kim

Matsuda

Kim

2016

Clinical Orthopaedics &Amp; Related Research

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“…Women are generally accepted to have a slightly greater valgus alignment than men, and Japanese subjects exhibit a higher varus alignment than Caucasians. 9,10 Activities involving kneeling or squatting are performed more commonly within certain Asian cultures. Recent studies suggest that use of high flexion positions results in a more varus alignment, 10,11 and could increase the risk for OA.…”

mentioning

confidence: 99%

“…9,10 Activities involving kneeling or squatting are performed more commonly within certain Asian cultures. Recent studies suggest that use of high flexion positions results in a more varus alignment, 10,11 and could increase the risk for OA. 12 Interestingly, lateral knee OA was more prevalent in a group of Chinese subjects than Caucasian subjects from the US.…”

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confidence: 99%

Anatomic variations between Japanese and Caucasian populations in the healthy young adult knee joint

Hovinga

Lerner

2009

Journal Orthopaedic Research

107

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Our objective was to characterize variations in mechanical knee alignment, tibial torsion, tibial width, and ACL laxity measurements between Japanese and Caucasian populations in the healthy, young adult knee joint. Seventy young adult subjects participated in this study, including 23 Japanese and 47 Caucasian subjects. Coronal magnetic resonance images of the hip, knee, and ankle were acquired for analysis. Japanese subjects had a significantly higher (p ¼ 0.04) varus alignment (1.64 AE 0.438 standard error) than Caucasians (0.55 AE 0.338), while women exhibited a more valgus alignment (0.16 AE 0.528) than men (0.94 AE 0.428, p ¼ 0.04). Significant differences were found in tibial torsion and ACL laxity (p < 0.01) between ethnicities, with Japanese exhibiting lower tibial torsion (33.4 AE 10.08) and higher ACL laxity (7.5 AE 0.4 mm) measurements compared to Caucasians (38.9 AE 9.58 and 5.7 AE 0.3 mm, respectively). Significant differences between genders were found in hip-knee-ankle alignment (p ¼ 0.04), tibial width (p < 0.0001), and ACL laxity (p < 0.01) measurements. Measurements were reliable between observers and for repeated positioning. Our study provides new insight into anatomical and geometric differences in the knee joint between Japanese and Caucasians, as well as between females and males. Further consideration of these results may improve development of implants to accommodate for these differences, and understanding of characteristics leading to increased prevalence of knee OA in certain populations. The use of magnetic resonance imaging to obtain these measurements also allows soft tissue structure characterization without exposure to ionizing radiation. ß

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Medial Torsion of the Tibia in Japanese Patients With Osteoarthritis of the Knee

Cited by 75 publications

References 10 publications

Synchronisation of tibial rotational alignment with femoral component in total knee arthroplasty

Synchronisation of tibial rotational alignment with femoral component in total knee arthroplasty

Clinical Faceoff: Do We Need Special Strategies for Asian Patients with TKA?

Anatomic variations between Japanese and Caucasian populations in the healthy young adult knee joint

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