Adekoya-Cole Thomas Oduntan, Akinmokun Olasode Israel, Soyebi Kofoworola O, Oguche Omachoko Emmanuel
Department of Surgery, College of Medicine, University of Lagos; Department of Surgery, Lagos University Teaching Hospital, Idi-Araba, Lagos, Nigeria.
Niger Postgrad Med J. 2016 Jan-Mar;23(1):17-20. doi: 10.4103/1117-1936.180130.
Most of the available orthopaedic implants were designed and manufactured based on data from Western population whose skeletal dimensions are different from those of Africans.
This study was conducted to determine the value of the neck-shaft angle (NSA) of Nigerians living in Lagos for the purpose of adequate planning, preparation, and pre-operative selection of orthopaedic implants for surgeries involving the femoral neck and stocking of orthopaedic implants in hospitals located in resource poor countries like Nigeria.
This was a retrospective study which involved measuring the NSAs of anterior-posterior views of pelvic radiographs of adult patients reported "normal study" by the radiologist.
A total of 264 femoral necks were analysed from 132 patients' radiographs comprising of 68 males and 64 females. The average NSA for an adult Nigerian living in Lagos is 130.77° ± 6.03° with mean NSA value of 131.28° ± 6.56° for the right and 130.22° ± 5.18° for the left. The mean value of NSA for an adult male is 131.57° ± 5.66° whereas the mean value for an adult female is 129.97° ± 6.33°.
The value of NSA obtained from this study should be considered during the surgical fixation of the neck of femur fractures or osteotomies around the neck of the femur of adult Nigerians. It should also be noted during designing and bioengineering construction of orthopaedic implants and hip prosthesis for Nigerians.
大多数现有的骨科植入物是根据西方人群的数据设计和制造的，而西方人群的骨骼尺寸与非洲人不同。
本研究旨在确定居住在拉各斯的尼日利亚人的颈干角（NSA）值，以便为涉及股骨颈的手术进行充分的规划、准备和术前选择骨科植入物，并为尼日利亚等资源匮乏国家的医院储备骨科植入物。
这是一项回顾性研究，涉及测量放射科医生报告为“正常检查”的成年患者骨盆前后位X线片的NSA。
共分析了132例患者X线片中的264个股骨颈，其中男性68例，女性64例。居住在拉各斯的成年尼日利亚人的平均NSA为130.77°±6.03°，右侧平均NSA值为131.28°±6.56°，左侧为130.22°±5.18°。成年男性的NSA平均值为131.57°±5.66°，而成年女性的平均值为129.97°±6.33°。
在成年尼日利亚人股骨颈骨折的手术固定或股骨颈周围截骨术中应考虑本研究获得的NSA值。在为尼日利亚人设计和生物工程构建骨科植入物和髋关节假体时也应注意这一点。
