A brief presentation about different kinds of implants for IT fracture and its indications.
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Language: en
Added: Jul 10, 2019
Slides: 26 pages
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INTERTROCHANTERIC FRACTURE Surgical Treatment Options Nguyen Q T Q, MD Department of Orthopedic Surgery Hue National Hospital
Fracture maps Extracapsular Between the greater and lesser trochanter
Epidemiology 50% of all hip fractures Elderly patient: low energy fall + osteoporosis Female-male ratio 2:1 20-30% mortality first year High failure rate 4-12%
Anatomy Trabecular bone Calcar femorale
Classification Stable Unstable
Surgery Treatment Plate and screw construct Nail construct External fixation Arthoplasty
Blade plate Compare to Sliding implant Cut-out: 13% vs 4% Non union: 2% vs 0.5% Implant breakage: 14% vs 0.7% Re-operation: 10% vs 4% Higher mortality, residual pain, impaired mobility The continued use of Fixed nail plates cannot be justified
Sliding HS Dynamic compression Dynamic interfragmentary compression Gold standard for hip fracture 1980's – 2000 1955 - Schumpelick and Jantzen
Sliding HS Dynamic compression Medialization of the shaft up to 90% (Rale et al 1993) Still useful for A1 stable fracture (Parker et al – meta analysis)
IM Nail The sliding hip screw is the better implant
IM Nail First generation of Gamma nail Early mobilization, full weight bearing Unstable fracture There was no evidence for a reduced failure rate with IMN in unstable trochanteric fractures.
IM Nail The gamma nail cannot be recommended for routine use in trochanteric fractures until the problem of femoral shaft fracture is resolved. SHS lower complication rate Different types of intramedullary nail produce similar results? Intramedullary nails have advantages for selected fracture types?
IM Nail Femoral shaft fracture risk with Gamma nails have been resolved
IM Nail CMN in unstable IT fractures: best results in functional outcomes, 12 month mortality, lower revision rates compared to SHS
IM Nail Impaction class Dynamic compression class Reconstruction class integrated
Locking Plate PFLP was not an appropriate treatment for trochanteric fractures PFLP is not universally effective in treating IT fractures. Femoral locked plate (PFLCP) can give good healing, with a limited occurrence of complication
Arthroplasty Early walking + full weight bearing Reduced pressure ulcer + pulmonary infection No decrease mortality rate Option for patient >75 yo with unstable fracture
Arthroplasty Total or bipolar Dislocation rate: 12% vs Hemi Geiger et al Arch of Orthop trauma Surgery 2007 Abandon THA as the luxation rate was higher than hemiarthroplasty
Arthroplasty Cemented or cementless The cementation: cement embolization, non-union, varying cement mantle thickness non-union greater trochanter progressive radiolucent line
Arthroplasty Cemented or cementless Cementless : early mobilization, acceptable functional results, low implant loosening rates, shorter surgery time, lesser blood loss, lower perioperative mortality rate Satisfactory results: early weight bearing, early rehabilitation, low rate of complication
Arthroplasty versus internal fixation Internal fixation: preferred method for elderly unstable IT fractures, even severe osteoporosis Nail: equal clinical outcomes Arthroplasty: more expensive, operating time, blood loss, higher mortality rate No functional benefit over internal fixation
Summary Implant selection Blade plate: abandoned for IT fracture DHS: still useful for A1 stable fracture, not recommend in A3 fracture or A2 unstable fracture IM nail: first option for unstable fracture Arthroplasty: preexisting OA, pathologic fracture, severe comminution, severe osteoporosis, salvage procedure Locking plate: Piriformis or trochanteric extension, narrow intramedullary canal, pulmonary injury, abductor preservation