Posterior slope of tibial plateau in Chinese

Chiu, K. Y.; Zhang, S.D.; Zhang, G.H.

doi:10.1016/s0883-5403(00)90330-9

Cited by 140 publications

(127 citation statements)

References 6 publications

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“…However, it is well known that the osteometry of Asians differs from that of Western populations in both size and morphology [4,11,19,20,22,23]. In a group of young healthy asymptomatic Chinese volunteers, we demonstrated that the mechanical axis of the lower limb in the coronal plane was more varus in the Chinese patients (2.2°v arus) and the joint line was more medially inclined (5.2°) [16].…”

Section: Introductionmentioning

confidence: 66%

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Distal Femur Rotation Relates to Joint Obliquity in ACL-deficient Chinese

Yau

Chiu

Fok

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Background The lower limb osteometry of Chinese differs from that of whites. The joint line of the knee in the coronal plane in Chinese is more medially inclined and the posterior condylar angle of the distal femur in the axial plane is larger. However, it is unclear whether there is any direct association between the coronal plane and axial plane osteometry. Questions/purposes We asked whether the joint line obliquity of the knee is related to the posterior condylar angle of the distal femur in young Chinese subjects. Methods Ninety-nine young Chinese patients with anterior cruciate ligament injuries were recruited. The lower limb alignment and joint line obliquity were measured using standing long radiographs of the whole lower limb.The rotational alignment of the distal femur was assessed in the axial cuts of the MRI. Results The distal femur rotational alignment was associated with the obliquity of the knee in Chinese. The posterior condylar angle was 5°± 2°. The knee was 5°± 3°medially inclined. Conclusions The joint line of the knee in a group of young Chinese patients was more medially inclined than that of whites. The posterior condylar angle of the distal femur was larger. The presence of an association between distal femur rotational alignment and joint line obliquity in this group of young Chinese patients suggests a possible developmental cause explaining the difference in osteometry between races.

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Section: Introductionmentioning

confidence: 66%

“…It is well known that the osteometry of Asians differs from that of Western populations [4,11,19,20,22,23] (Fig. 4).…”

Section: Discussionmentioning

confidence: 99%

Distal Femur Rotation Relates to Joint Obliquity in ACL-deficient Chinese

Yau

Chiu

Fok

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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“…The normal proximal tibia has a posterior slope from 7°to 15°in the adult knee [1][2][3]. In their study on 76 children with knee abnormalities, Gugenheim et al [4] found that when knee flexion contracture is present, the posterior slope of the tibia was significantly greater in these children than the normal population.…”

Section: Introductionmentioning

confidence: 99%

The effects of patellar tendon advancement on the immature proximal tibia

Patthanacharoenphon

Maples

Saad

et al. 2013

Journal of Children's Orthopaedics

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Purpose The aim of this study is to examine the shortterm effects of patellar tendon advancement on the proximal tibial slope in the skeletally immature patient. Methods A retrospective, non-randomized, comparative cohort design was used. Koshino indices and tibial slopes were assessed pre-operatively and post-operatively and compared with age-and sex-matched controls. Results Nine children with 17 patellar tendon advancements were analyzed for changes in Koshino indices. Of these 17 tibiae, radiographs on changes in tibial slope were available for 16 tibiae which were also compared with controls. Children aged \11 years had a greater initial posterior tibial slope (69.8°± 3.5°) than age-matched controls (80.3°± 2.7°). A decrease in posterior slope was seen in these younger patients (average change 10.3°± 4.8°) at an average of 1.6 years of follow-up. Of the nine apophyses in children aged \11 years of age, seven had undergone premature closure. ConclusionPatellar tendon advancement appears to have an unreported effect on the proximal tibial growth in the young patient (\11 years old). These patients appear to be susceptible to apophyseal closure, resulting in subsequent loss of posterior tibial slope. Surgeons should be aware of this effect and monitor younger patients with radiographs if performing this procedure.

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“…In the normal knee the medial posterior tibial slope is 9°-11° and the lateral posterior tibial slope is 6°-11° however, because there are 5 radiographic techniques described to evaluate its amount (see the Imaging section for more explanations), a wide range of values is reported (Brazier et al, 1996;Chiu et al, 2000;Genin et al, 1993;Insall , 1993;Lecuire et al, 1980;Matsuda et al, 1999;Paley et al, 1994). The sagittal plane of the knee has often been ignored, however its changes affect biomechanics and joint stability.…”

Section: Observations About Posterior Tibial Slopementioning

confidence: 99%