Abstract:
This study was performed to characterize knee joint changes in Sudanese
through measurement using plain x-ray in order to determine potential
candidate for bone size and to estimate the artificial knee joint size before
surgery. The study was conducted in two centres in Khartoum state they
include: Modern Medical Centre and Antalya Medical Centre in the period
from June 2012 to April 2015. The sample of this study consisted of 320
symptomatic knee joints patient. 257 of them were examined plain x-ray
for knee 106 showed no changes in the x-ray film, their ages between (18-
64) years and 151 patients showed changes of knee joint in the plain X-ray,
their ages between (20-78) years. To estimate the artificial knee size before
surgery 63 patients have an artificial knee joint in Sharg Elneel Hospital,
Khartoum, Sudan, were collected, their ages between (59-74) years. The
result of this study showed that: The height and circumference of the knee
for males and females were significantly correlated. The height of the
knees was increased by 0.39 cm and 0.29 cm per each cm of patient height
for male and female. Similarly the circumference of the knee for male and
female were associated with the height and weight of patient. The
appearance of bony changes can be estimated using bone measurement.
The mediolateral femur measurements for male is equal to 71.8 ± 2.5 and
67.8 ± 3.6 for female and the mediolateral tibia measurements is equal to
74.6 ± 3.2 for male and 69.3 ± 3.7 for female. These differences were
significant at p=0.05 using the t-test with t=2.62 for male and t=3.07 for
female and p=0.04 and 0.02 respectively. The size of artificial femur and
tibia for male and female can be estimate using the following equation: for
male; femur AFS= (0.73 x MLFS) - 42.5 and tibia ATS = (0.58 x MLTS) -
33.8. Similarly for female, femur AFS = (0.59 x MLFS) - 33.4 and tibia
ATS = (0.48 x MLTS) - 27.1
