One high strength study (Sadowski et al 97) that specifically evaluated reverse oblique and transverse intertrochanteric fractures (OTA 31.A3) found lower failure rates, blood loss, and operating room time in the cephalomedullary nail cohort versus a 95º fixed-angle device with no difference in functional results. Two high strength comparative studies showed similar results and outcomes between different cephalomedullary devices in unstable fractures (Zhang et al 98, Schipper et al 99).
A moderate strength study (Miedel et al 100) demonstrated a lower complication rate with use of a cephalomedullary versus an extramedullary device in treatment of unstable intertrochanteric and subtrochanteric fractures. Another moderate strength study (Hardy et al 101) showed improved mobility and decreased limb shortening in unstable intertrochanteric fractures treated with a cephalomedullary device versus a sliding hip screw.
Risk and Harms of Implementing this Recommendation
There are no known harms associated with implementing this recommendation
Continued comparative studies between modern cephalomedullary and extramedullary devices in unstable subtrochanteric and reverse obliquity fractures (OTA 31.A3) which control for fracture reduction and implant position (specifically tip-to-apex distance) may further clarify the utility of cephalomedullary devices for this fracture cohort.
- (100) Miedel R, Ponzer S, Tornkvist H, Soderqvist A, Tidermark J. The standard Gamma nail or the Medoff sliding plate for unstable trochanteric and subtrochanteric fractures. A randomised, controlled trial. J Bone Joint Surg Br 2005;87(1):68-75.
- (101) Hardy DC, Descamps PY, Krallis P et al. Use of an intramedullary hip-screw compared with a compression hip-screw with a plate for intertrochanteric femoral fractures. A prospective, randomized study of one hundred patients. J Bone Joint Surg Am 1998;80(5):618-630.
- (97) Sadowski C, Lubbeke A, Saudan M, Riand N, Stern R, Hoffmeyer P. Treatment of reverse oblique and transverse intertrochanteric fractures with use of an intramedullary nail or a 95 degrees screw-plate: a prospective, randomized study. J Bone Joint Surg Am 2002;84-A(3):372-381.
- (98) Zhang S, Zhang K, Jia Y, Yu B, Feng W. InterTan nail versus proximal femoral nail antirotation-asia in the treatment of unstable trochanteric fractures. Orthopedics 2013;36(3):e288-e294.
- (99) Schipper IB, Steyerberg EW, Castelein RM et al. Treatment of unstable trochanteric fractures. Randomised comparison of the gamma nail and the proximal femoral nail. J Bone Joint Surg Br 2004;86(1):86-94.