Waqas Ali, Farooq Azam Khan, Khalid Mehmood.
Comparison of conventional and minimal invasive dynamic hip screw technique.
J Sharif Med Dent Coll Jan ;1(1):34-8.

Objective: To compare clinical outcome of minimally invasive dynamic hip screw technique with conventional dynamic hip screw technique in terms of incision length, peroperative hemoglobin level drop, need of blood transfusions and fracture union in patients sustaining Boyd and Griffin type 1 & 2 intertrochanteric fractures. Methodology: In this randomized controlled trial, total number of seventy patients with intertrochanteric fracture were treated with either conventional dynamic hip screw (Group A) or minimally invasive dynamic hip screw technique (Group B). They were randomized into two groups with 35 patients in each group. All patients were operated by a single surgeon. One group was managed by minimally invasive dynamic hip screw and the other with conventional dynamic hip screw. Result: Each group contained 35 patients. The conventional dynamic hip screw group had significantly larger wound incision (p-value=0.001), greater hemoglobin drop (p-value = 0.001) and a more frequent need of blood transfusion (p-value= 0.006) as compared to the minimally invasive dynamic hip screw Group. There was no significant difference in terms of union rates and all the fractures healed within six months time. Conclusion: This study concluded that minimal invasive dynamic hip screw technique requires smaller incision, less hemoglobin level drop and less need for blood transfusion as compared to conventional dynamic hip screw technique and there is no significant difference in terms of bone union between these two techniques. Hence minimal invasive DHS technique is effective, better and safe as compared to conventional DHS. keywords: interochanteric fractures. conventional dynamic hip screw. fracture union.

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