Related Experiment Video
Updated: May 21, 2026

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis
Published on: October 12, 2016
Biological plate osteosynthesis of comminuted subtrochanteric fractures: a clinical study
Saeed Reza Mehrpour1, Mohamadreza Aghamirsalim, Mohamadreza Tavvafi
1Students' Scientific Research Center-SSRC, Exceptional Talent Development Center-ETDC, Tehran University of Medical Sciences-TUMS, Tehran, Iran.
Background:
Comminuted subtrochantric fractures represent a challenge for trauma surgeons. Achieving appropriate reduction and stable fixation can be difficult, some techniques being associated with technical difficulties and complications. The aim of this study is the assessment of biologic fixation in comminuted subtrochantric fractures.
Method:
Twenty six men with comminuted subtrochanteric femoral fractures treated by bridging dynamic hip screw were prospectively studied. Patients were assessed clinically for pain, hip and knee range of motion, angular and rotational deformities and leg-length discrepancy. Union was assessed radiographically.
Results:
Seinheimer classification: 8 fractures were type III, 11 patients type IV and seven patients type V. Fixation was performed with dynamic hip screw (DHS). Union occurred in all cases. None of the patients had clinical pain or dysfunction.
Discussion:
We highly recommend submuscular plating in the treatment of comminuted subtrochantric fractures especially in the third world.
