TITLE:
Postoperative Outcomes of Type 2-3 Trochanteric Fractures Treated with Double-Screw Intramedullary Nails: A Multicenter Prospective Study
AUTHORS:
Tetsuya Kawano, Hiroaki Kijima, Takayuki Tani, Norio Suzuki, Yosuke Iwamoto, Naohisa Miyakoshi
KEYWORDS:
Proximal Femoral Fracture, Trochanteric Fracture, Area Classification, Intramedullary Nail, Lag Screw, Rotational Instability
JOURNAL NAME:
Surgical Science,
Vol.16 No.4,
April
24,
2025
ABSTRACT: Purpose: This paper aims to evaluate the postoperative outcomes of femoral trochanteric fractures with fracture lines extending to the base of the femoral neck (Type 2-3 fractures), treated with intramedullary nails featuring double screws into the femoral head. Methods: A multicenter prospective study enrolled 225 patients with proximal femoral fractures. Type 2-3 fractures were classified based on the Area classification using 3D-CT. We compared surgical outcomes among three types of short femoral nails with double lag screws. Results: Type 2-3 fractures accounted for 28.4% of cases. Among them, 79.7% were treated with nails incorporating double lag screws. No significant differences were found in failure rate, reduction quality, or operative parameters among different implant types. Conclusion: Good postoperative outcomes were achieved in Type 2-3 fractures using intramedullary nails with double screws into the femoral head, regardless of implant brand.