New Trends & Techniques in Open Reduction Internal Fixation of Fractures of the Tibial Plateau

J Bone Joint Surg Br. 2009 Apr;91(4):426-33.

Musahl V, Tarkin I, Kobbe P, Tzioupis C, Siska PA, Pape HC.

Reviewed by

Dr Terry Stephens
BSc(hons), MBBS, PhD |
Unaccredited Orthopaedic Registrar

Introduction

  • Treatment Principles
    • anatomical reduction
    • rigid fixation
    • early movement
  • Traditional methods
    • extensive dissection
    • periosteal stripping
    • compromising vascular supply
  • Problems
    • infection
    • non-union
    • secondary bone grafting
    • loss of reduction
  • locking plates & minimally invasive approaches
    • preserves the soft tissue envelope

Meniscal injuries

  • not all need to be repaired
  • 90% lateral meniscal injuries (gardner et al 2005)
  • medial meniscus associated with medial fractures

Ligament injuries

  • bicondylar fractures
    • acl (57%),
    • pcl (28%),
    • lcl (57%),
    • mcl (36%)
  • lateral collateral – medial fractures
  • medial collateral – lateral fractures
  • plc and pcl – anterio-medial fractures

Surgical Approach

  • single incision
    • commonly anterior lateral incision
      • allows approach for later arthroplasty
    • tips
      • 1st reduce proximal lateral condyle
      • 2nd intercondylar reduction
  • two incision
    • required if cortical contact between condylar fragments is inadequate
    • small medial incision (maintain large skin bridge)
      • anti-glide plate or medial locking plate

Minimally Invasive Approach

  • decreased
    • deep infections
    • arthrofibrosis
    • post traumatic arthritis
  • 13% loss of reduction

Special Situations

  • posterior plateau fractures
    • posterior lateral
      • fibular osteotomy
    • posterior medial fractures
      • posterior medial incision
  • high energy bicondylar fractures
    • often require dual incisions

Locking plates

  • unnecessary
    • simple lateral splits
      • cannulated lag screws
        • x2 more biomechanically stable than x3
      • if large anatomically contoured anti-glide plate
    • splits lateral depression
      • buttress plate or peri articular plate
      • with bone graft to elevate cartlidge
    • medial condyle fractures
      • lag screw
      • buttress plate (to avoid shear forces)
        • large
        • communited
  • useful
    • high energy fractures
    • comminution
    • osteoporotic bone
  • advantages
    • single lateral approach
    • preserves soft tissue envelope
    • combine with compression lag screws

dual plating offers most stable construct

Arthroscopy and Fluoroscopy

  • adequate reduction can be achieved with either.
  • Increased risk of compartment syndrome with arthroscopy

ilizarov

  • severe comminution
  • similar results for orif

Clinical outcomes

  • difficult to assess
    • very diverse range of injuries
  • articular reduction important
    • 10mm lucht & pilgaard 1971
    • 5mm rasmussen et al 1973
    • 2mm barei et al 2006
    • difficult due to diverse type injury and therefore studies lacking
  • favourable result
    • low-energy injuries
    • lateral meniscus preservation
    • high energy – articular displacement and anatomical reduction.

Complications

  • infection 5 -15%
    • correlates with soft tissue injury and amount of metal
    • large surgical wounds
    • infection rates still high with mi techniques
  • avn
    • particularly dual plating
  • non union
  • mal union
  • malposition
  • post traumatic arthritis
  • stiffness with external fixation

Total Knee Replacement

  • high rates of wound problems and infections
  • related to multiple incisions and soft tissue compromise
  • recommend most healed incision and most lateral incision
  • satisfactory functional outcome