Sajid Akhtar, Shahab-ud Din, Faiz Ali Shah, Wali Mohammad, Abdur Rehman.
Frequency of Lag Screw Cutout After Dynamic Hip Screw Fixation of Stable Intertrochanteric Femur Fracture by Keeping Tip Apex Distance Less Than 25 millimeter.
Pak J Med Health Sci Jan ;12(2):.

Background: Intertrochanteric fracture is a fracture in theregion of the hip, consisting of the area from the extracapsular basilar neck region to theregion along lesser trochanter before the development of medullary canal. The overall incidence reported in a study conducted in China was 47.8 and 50.4 fractures per 100,000 per year formen and women, respectively. Females showed a higher fracture incidence than males in those aged 55 years and over. The DHS has therefore become one of the standard treatments of trochanteric fractures Aim: To determine frequency of lag screw cutout after dynamic hip screw fixation of stable intertrochanteric femur fracture by keeping TIP apex distance less than 25 millimeter. Methods: This study was conducted at Department of Orthopaedics, Lady Reading Hospital Peshawar for the period of 6 months. This was a descriptive cross-sectional study in which a total sample size of 139 patients was taken by using 23% proportion of failure rate of dynamic hip screw fixation, 95% of confidence interval and 7% margin of error, under WHO software for sample size determination. Non probability consecutive sampling technique was used for sample collection. Results: 23% patients were in age 45-55 years, 39% patients were in age 56-65 years, 42% patients were in age 66-70 years. Mean age was 57 years with standard deviation +- 2.04. Fifty eight percent patients were male and 42% patients were female. 10% patients had screw cutout while 9 0% patients did not had screw cutout. Conclusion: The frequency of lag screw cutout was 10% after dynamic hip screw fixation of stable intertrochanteric femur fracture by keeping TIP apex distance less than 25 millimeter

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