Radiogrametric linear dimensions of the distal femur in Nigerian adults: forensic and clinical implications
Keywords:
distal femur, radiography, knee joint, sexual dimorphism, Nigerian adultsAbstract
Anatomical awareness of the bony components of the knee joint is important in forensic, medico-legal and clinical applications. The distal femur form part of the bony component of the knee joint and as such its morphological dimensions play a key role in establishing identity in forensics and in orthopedics. The study is aimed at providing reference data of some morphological dimensions of the distal third of femur of adult Nigerians using radiographic method. A total of 200 standard lateral radiographs (consisting of 100 males and 100 females) aged between 20-60 years were collected from the radiology departments of various teaching hospitals across Nigeria were used. From the obtained radiographs five parameters were measured using standard techniques. they include the Antero posterior width of femur, Half metaphyseal width of femur, length of anterior condyle of femur, length of posterior condyle of femur and Antero posterior width of condyle of femur. Analysis was done using SPSS 20.0 version; hence mean and standard deviation were obtained. Z-test was used to compare mean values at 0.05 significant levels. Measurements were taken in centimeters The index of sexual dimorphism was applied to ascertain level of gender difference. The results showed that males had higher mean values than females for all the linear parameters measured (p<0.05). There was also was no significant difference between sides of femur (p>0.05). Comparison with other race showed variations in mean values. The morphological differences in the linear dimensions of the distal femur between genders would be useful in gender and racial identification, in the choice of knee prosthesis for the Nigerian population and in clinical applications also since no significant bilateral difference was recorded the contralateral healthy side can be used for reconstructive procedures Thus it is recommended that anatomist, forensic anthropologist, radiologists, orthopedic surgeons and orthopedic manufacturing companies adopts these findings as a reference guide for adult Nigerians.
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