Normal Development of Tibiofemoral Angle in Healthy South-Eastern Nigerian Children: A Clinical Study on 3147 Children.

Journal of the West African College of Surgeons Pub Date : 2024-10-01 Epub Date: 2024-07-18 DOI:10.4103/jwas.jwas_172_23

Henry Nnyagu, Henry Obinna Obiegbu, Udo Anyaehie, Ikeabbah Emeka Henry

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Abstract

Background: Angular deformities of the lower extremities are common in children and are a frequent reason for orthopaedic referral. These deformities, which are usually encountered when children start to walk are typically measured using the tibiofemoral angle (TFA), which represents the angle formed by the intersection of the anatomical axis of the femur with the anatomical axis of the tibia.

Objectives: This study aimed to determine the TFA in healthy South-Eastern Nigerian children, and to determine the effect of gender and age on this angle.

Materials and methods: This cross-sectional study was done in Enugu metropolis with 3147 school children and adolescents aged 3-17 years.

Results: It was found that the majority of the subjects (97.6%) had valgus TFA. The maximum knee valgus angle from the study was 6.8° ± 0.80° at 4 years. Thereafter, the knee valgus angle declined to a mean of 2° at 17 years.

Conclusion: There were physiological changes in TFAs noted, which vary with regards to both age and gender of the subject.

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尼日利亚东南部健康儿童胫股关节角度的正常发育：对 3147 名儿童的临床研究

背景：下肢成角畸形在儿童中很常见，也是骨科转诊的一个常见原因。这些畸形通常在儿童开始行走时出现，通常使用胫骨股骨角（TFA）进行测量，该角度代表股骨解剖轴与胫骨解剖轴的交点所形成的角度：本研究旨在确定尼日利亚东南部健康儿童的 TFA，并确定性别和年龄对该角度的影响：这项横断面研究在埃努古大都市进行，共有 3147 名 3-17 岁的学龄儿童和青少年参加：结果：研究发现，大多数受试者（97.6%）的膝关节外翻角度为TFA。研究发现，4 岁时的最大膝外翻角度为 6.8° ± 0.80°。此后，膝关节外翻角度下降至 17 岁时的平均值 2°：结论：膝关节外翻的生理变化因受试者的年龄和性别而异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of the West African College of Surgeons

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