Subtrochanteric Femur Fracture Fixation
Travis Matheney, MD
Indications
Subtrochanteric femur fracture
Ages five to skeletal maturity
Sterile Instruments/Equipment
Fracture table or radiolucent operating room table
ORIF set
Ball-tipped spike
Large weber clamps
Lobster claw (serrated) bone reduction clamps
Implants
3.5 mm/5.0 mm pediatric hip locking plate with extended lengths
4.5 mm narrow locking plate (submuscular technique)
Rigid intramedullary nail (adolescent patients)
Flexible intramedullary nails (length stable, <100 lbs)
Patient Positioning
Supine with legs scissored on the fracture table (Figure 20-1)
Bump underneath ipsilateral pelvis with ipsilateral arm draped over a pillow on chest
Assure that the trochanteric region is easily accessible
Avoid malrotation of foot
Fluoroscopic view to make sure adequate visualization of hip, fracture, and knee
Rigid nails
Submuscular plate
Flexible nail
Lateral on the radiolucent fracture table (Figure 20-2)
Assure fluoroscopic visualization of hip and fracture
Surgical Approaches
Lateral approach to proximal femur depending on the extent of exposure needed
Skin incision, followed by longitudinal split of the IT band
Elevate the vastus by making a horizontal cut with electrocautery on anterior femur at vastus insertion followed by elevation of the vastus off the posterior intermuscular septum leaving minimal muscle cuff to avoid perforating septum. Coagulate perforators (Figure 20-3).
More extensive dissection versus less dissection will depend on the procedure. Extensive dissection needed with open plating versus selective exposure to control fracture fragments with intramedullary nailing.
Reduction and Fixation Techniques
All reduction techniques rely on the understanding of muscle forces on the proximal fragment which will tend to be flexed (iliopsoas), abducted, and externally rotated (gluteus, short external rotators)Stay updated, free articles. Join our Telegram channel
Full access? Get Clinical Tree