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    




