EPIDEMIOLOGY
INCIDENCE
· 1–2% of all fractures
· 10.3 per 100,000 people annually
DEMOGRAPHICS
· Mean age: 52
· Bimodal distribution
o Males in 40s (high-energy trauma)
o Females in 70s (low-energy falls)
LOCATION
· Lateral plateau: 70–80%
· Bicondylar: 10–30%
· Medial plateau: 10–20%
ETIOLOGY
MECHANISM
· Fracture location and pattern are determined by the direction/magnitude of applied load and bone quality.
· Lateral plateau fractures typically occur with valgus loading.
· Medial plateau fractures typically occur with varus loading.
· Bicondylar patterns are commonly associated with axial loading mechanisms.
ASSOCIATED CONDITIONS
· Lateral meniscus tears occur more frequently than medial tears and are commonly associated with Schatzker type II fractures.
· Medial meniscus tears are more commonly associated with Schatzker type IV fractures.
· Most frequently associated ligament injury: medial collateral ligament (MCL), followed by anterior cruciate ligament (ACL).
· Posterior cruciate ligament (PCL) injuries occur more frequently in Schatzker type IV and VI fractures.
· Schatzker type IV fractures show higher association with neurovascular injuries, most commonly involving the peroneal nerve.
ANATOMY
· The lateral tibial plateau is convex, while the medial tibial plateau is concave.
· Posterior tibial slope is typically 6–10°, and the proximal tibia demonstrates approximately 3° of varus alignment relative to the mechanical axis.
BIOMECHANICS
· Approximately 60% of the load is transmitted through the medial tibial plateau, while the remaining 40% is borne by the lateral plateau.
KINEMATICS
· Normal knee flexion–extension arc is approximately 140°.
· Posterior femoral rollback and the screw-home mechanism are key contributors to normal knee kinematics.
CLASSIFICATION
Schatzker Classification
· Type I – Lateral split fracture
· Type II – Lateral split-depression fracture
· Type III – Pure depression fracture
· Type IV – Medial plateau fracture
· Type V – Bicondylar fracture
· Type VI – Plateau fracture with metaphyseal–diaphyseal dissociation
Hohl and Moore Classification
· Type I – Coronal split fracture
· Type II – Entire condylar fracture
· Type III – Rim avulsion fracture
· Type IV – Rim compression fracture
· Type V – Four-part fracture
3-Column Concept
· Lateral column
· Medial column
· Posterior column
PRESENTATION
· Tibial plateau fractures commonly present with inability to bear weight after injury.
· Physical examination typically demonstrates tenderness over the proximal tibia, knee swelling and ecchymosis, and restricted range of motion.
· Careful assessment of neurovascular status and soft-tissue condition is essential, particularly in high-energy injuries.
IMAGING
RADIOGRAPHS
· Standard evaluation includes AP, lateral, and 10-degree oblique plateau radiographs.
· Radiographs may demonstrate plateau depression, medial or lateral subluxation, and irregularity or discontinuity of the joint line.
CT
· CT is critical for fracture characterization and preoperative surgical planning, particularly for articular depression, comminution, and column involvement.
MRI
· MRI is useful for detecting associated meniscal and ligament injuries, and for evaluating occult soft-tissue injury patterns when management may change.
DIFFERENTIAL
· Distal femur fracture
· Knee dislocation
· Patellar instability
· Patella fracture
· Patellar tendon rupture
· Quadriceps tendon rupture
· ACL tear
· Meniscus tear
TREATMENT
· Management includes both nonoperative and operative strategies and should be individualized according to fracture displacement, stability, alignment, patient factors, and soft-tissue envelope.
NONOPERATIVE
· Minimally displaced, nondepressed fractures and patients unable to tolerate surgery may be treated with a long-leg cast, splint, or hinged knee brace.
· Typical protocol includes restricted or non–weight bearing for 6–8 weeks, followed by gradual progression of weight bearing with close clinical and radiographic follow-up.
OPERATIVE
· Options include closed reduction with cannulated screw fixation, ORIF with plating, and external fixation or Ilizarov techniques in patients with compromised soft tissues.
· Primary arthroplasty may be considered in selected patients >65 years with osteoporotic fracture patterns or those who develop advanced post-traumatic osteoarthritis.
· Surgical approaches are selected based on fracture pattern and may include anterolateral, anteromedial, posteromedial, or posterior approaches.
· Arthrotomy may be performed for meniscal evaluation/repair and to guide elevation of depressed articular segments.
· Bone void management may include autograft, allograft, or bone substitute depending on defect size and patient factors.
· Postoperative care commonly includes hinged knee bracing for 8–12 weeks and progressive rehabilitation guided by stability and healing.
COMPLICATIONS
· Post-traumatic arthritis
· Compartment syndrome
· Infection
· Malunion or nonunion
· Knee stiffness
· Deep vein thrombosis
· Loss of reduction
PROGNOSIS
· Mortality rate: ~5% at 1 year
· Return to work: 70–90% at 1 year (residual dysfunction or reduced workload is common)
· Mean ROM at 1 year: approximately 10–145 degrees
References
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2. Marsh JL, Slongo TF, Agel J, et al. Fracture and dislocation classification compendium – 2007: Orthopaedic Trauma Association classification. J Orthop Trauma. 2007;21(10 Suppl):S1–S133.
3. Barei DP, Nork SE, Mills WJ, Henley MB, Benirschke SK. Functional outcomes of severe bicondylar tibial plateau fractures treated with dual incisions and medial and lateral plates. J Bone Joint Surg Am. 2006;88(8):1713–1721.
4. Hohl M, Moore TM. Articular fractures of the proximal tibia. In: Evarts CM, ed. Surgery of the Musculoskeletal System. 2nd ed. New York: Churchill Livingstone; 1990:3193–3218.
5. Kfuri M, Schatzker J. Revisiting the Schatzker classification of tibial plateau fractures. Injury. 2018;49(12):2252–2263.
6. Luo CF, Sun H, Zhang B, Zeng BF. Three-column fixation for complex tibial plateau fractures. J Orthop Trauma. 2010;24(11):683–692.
7. Gardner MJ, Yacoubian S, Geller D, et al. Prediction of soft-tissue injuries in Schatzker II tibial plateau fractures based on measurements of plain radiographs. J Trauma. 2006;60(2):319–323.
8. Bennett WF, Browner B. Tibial plateau fractures: a study of associated soft tissue injuries. J Orthop Trauma. 1994;8(3):183–188.
9. Egol KA, Koval KJ, Zuckerman JD. Handbook of Fractures. 6th ed. Philadelphia: Wolters Kluwer; 2020.
10. Rockwood CA, Green DP, Bucholz RW, Heckman JD, Tornetta P. Rockwood and Green’s Fractures in Adults. 9th ed. Philadelphia: Wolters Kluwer; 2020.