الفهرس 
Anatomy of upper end femur and hip jointOnly 14 pages are availabe for public view
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Abstract
Intertrochanteric fracture is a common injury in elderly. The treatment of this fracture had long been by internal fixation but wiyh a high incidence of failure reaching up to 50% in some types of this fractures .(15-16) Hence, the assumption of replacement of the hip instead of internal fixation (24) .
The material of this study included the X rays of 30 patients of fresh trochanteric fracture and their postoperative pictures were examined for certain measurements . Also, the patient‟s records were examined to evaluate the personal data, the associated diseases and the period of hospital stay pre and post-operative.
The inclusion criteria included patients above 55 years with recent closed intertrochanteric fracture.
The exclusion criteria included those with previous fracture , surgery or congenital anomaly of the same hip. Also,abnormal neurology, open fracture, active infection or if the fracture was complicated by neurovascular damage. Moreover, extensive medial comminution or reversed obliquity fracture . In general, any comminution of the medial cortex extending more than 2 cm below the lesser trochanter was excluded as standard total hip was used only in this study.
All patient had cemented standard total hip prosthesis
The age of patients ranged between 59-75 years with a mean of 67.57± 4.76 years. There were 16 females (53.3%) and 14 males (46.7%). Out of the 30 patients , 16 (53.3%) had 24 associated medical diseases. The most common was hypertension (8 patients), Diabetus Mellitus in 7 patients, renal dysfunction in 4 and hepatic dysfunction in 2 patients. Moreover, 3patients had rheumatoid arthritis and 2 patients had ankylosing spondylitis.
The x-ray films were examined for leg length discrepancy, vertical centre of rotation of the cup and horizontal centre of rotation compared to the contralateral side. Also, the mesial femoral offset was measured in cm. The acetabular cup inclination angle and the femoral stem position were measured in degrees. Moreover,cementing of the cup and stem were evaluated and the cement distal to the tip of the stem was examined. The neck and cup version were omitted because no actual lateral view or ct scan were available for study.
According o kyle‟s classification , 11 cases were of type 2 (36.7%), while 14 cases (46.7%) were of type 3 and the remaining 5 fractures ( 16.7%) were considered type 4.
The limb length discrepancy had a mean of 0.34± 1.05 cm(longer than contralateral side). The limb length was found more in males and in type2 fractures but the difference was statistically insignificant.
The vertical centre of rotation of the cup had a mean of 0.18±0.17 cm, while the horizontal centre of rotation was 0.38±0.16 cm compared to contralateral side. The medial femoral offset was 4.03± 0.19 cm.
Summary
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The acetabular inclination angle varied from 30-60 degrees with a mean of 39.77±1.8 degrees with no significant difference between males and females.
The femoral stem position varied from 10 degrees varus to 10 degrees valgus with a mean of 0.93±0.96 degrees valgus.
The cementing of the stem and cup in general was good except in one case where cup cementing was less than optimal .
There was no significant correlation between type of fracture and accuracy of hip replacement.
Finally, we could conclude that with the limitation of this study, the accuracy of placement of cemented total hip prosthesis in recent trochanteric fracture is accepted and compareable to that of osteoarthritis.