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Dynamic Versus Static Distal Interlocking In AO/OTA 31A2 Intertrochanteric Femur Fractures: A Prospective Randomized Controlled Trial
Sponsor: Bozyaka Training and Research Hospital
Summary
AO/OTA 31A2 intertrochanteric femur fractures are unstable injuries commonly treated with cephalomedullary nailing. However, the optimal distal locking configuration for short proximal femoral nails remains uncertain. This prospective, single-center, parallel-group randomized trial compared dynamic and static distal interlocking of a single short proximal femoral nail design in patients aged 65 years or older with AO/OTA 31A2 fractures. A total of 111 participants were randomized in a 1:1 ratio to dynamic or static distal locking and were followed for a minimum of 24 months. The study evaluated hip function, fracture union and time to union, established non-union, cephalic lag-screw backout, distal cortical thickening, peri-implant fracture, and reoperation or revision surgery.
Key Details
Gender
All
Age Range
65 Years - Any
Study Type
INTERVENTIONAL
Enrollment
111
Start Date
2020-12-20
Completion Date
2024-12-15
Last Updated
2026-10-07
Healthy Volunteers
No
Conditions
Interventions
Dynamic Distal Interlocking Intramedullary Nailing
Cephalomedullary fixation was performed using the study short proximal femoral nail. Distal interlocking was performed through the dynamic locking slot to permit controlled axial movement at the distal locking interface.
Static Distal Interlocking Intramedullary Nailing
Cephalomedullary fixation was performed using the same study short proximal femoral nail. Distal interlocking was performed through the static locking hole to restrict axial movement at the distal locking interface.
Locations (1)
University of Health Sciences İzmir Bozyaka Training and Research Hospital
Izmir, İzmir, Turkey (Türkiye)