# Tibial Plateau Fractures

> Tibial plateau fractures for NEET-PG Orthopaedics: Schatzker classification, valgus injury, neurovascular checks, bracing versus ORIF and pilon notes.

- Canonical URL: https://prepelephant.com/topics/neet-pg/orthopaedics/tibial-plateau-fractures
- Exam / course: NEET-PG · Subject: Orthopaedics
- Publisher: PrepElephant (https://prepelephant.com) — Prepared and reviewed by the PrepElephant Academic Review Team
- First published: 2026-10-02
- Last updated: 2026-10-02
- How to cite: "Tibial Plateau Fractures", PrepElephant, https://prepelephant.com/topics/neet-pg/orthopaedics/tibial-plateau-fractures

## Direct answer

A tibial plateau fracture is an intra-articular break of the upper tibia produced by valgus force or axial loading — the classic bumper or fall-from-height injury of the knee. The lateral plateau is most often affected, and the Schatzker classification grades the pattern from a simple split (type I) to bicondylar and complete dissociation of the metaphysis (type VI). Undisplaced fractures are treated non-operatively in a brace or cast with restricted weight-bearing; depressed or unstable fractures need reconstruction of the joint surface, usually by open reduction and plating, and all need a careful search for vascular, nerve and compartment-syndrome complications.

## What you must remember

- **Schatzker types:** I lateral split; II lateral split with depression; III pure central depression of the lateral plateau, typically osteoporotic; IV medial plateau, high-energy with a poor prognosis; V bicondylar; VI metaphyseal dissociation from the shaft.
- **Mechanism:** valgus load with axial compression — the car bumper striking a pedestrian, or a fall from height; the lateral plateau fails first.
- **Assessment beyond the bone:** document the peroneal nerve and popliteal vessel status and watch for compartment syndrome; a subluxed or dislocated pattern warrants urgent vascular imaging.
- **Imaging:** plain films first, then CT with reconstruction to plan surgery; MRI adds ligament and meniscal information, injuries that accompany many plateau fractures.
- **Treatment:** split or depression beyond roughly two to three millimetres, or knee instability, argues for open reduction with locking plates and bone graft to lift depressed fragments; severe soft-tissue injury is spanned first with an external fixator.
- **Conservative care:** hinged-knee brace or cast, strict non-weight-bearing with early range-of-motion exercises for stable, minimally displaced patterns.
- **Pilon contrast:** a pilon (plafond) fracture is the axial-compression injury of the distal tibia at the ankle, treated by the same soft-tissue-respecting, often staged philosophy.

## Common confusion

Depression versus split decides the Schatzker type by age: a young bumper victim splits hard bone (type I or II), while an osteoporotic elder's plateau silently crushes (type III). Plateau is proximal at the knee and pilon distal at the ankle — both intra-articular axial-load injuries, but at opposite ends. The deeper error is stopping at the bone: a tense, painful calf with pain on passive toe movement is compartment syndrome until proved otherwise, and a pulseless knee needs vascular assessment before plating. A medial plateau (type IV) is a high-energy injury with neurovascular risk, not a benign variant.

## Exam-focused takeaway

NEET-PG tests Schatzker recognition from vignettes — young man, valgus blow, split lateral plateau; elderly woman, isolated depression; medial plateau flagged as high energy. Management stems contrast bracing with restricted weight-bearing against plating with grafting for stepped, unstable joints, and external-fixator spanning for blistered soft tissues. Complication questions probe compartment syndrome as the earliest threat and peroneal nerve palsy, while image stems show a depressed lateral plateau or bicondylar fracture, and one-liners attach the bumper and pilon labels to the correct tibial end.

## Frequently asked questions

### What is the Schatzker classification?

A six-type system for tibial plateau fractures, from a lateral split (I) through split-depression (II) and pure depression (III) to medial (IV), bicondylar (V) and total metaphyseal dissociation (VI).

### Which plateau is most commonly fractured?

The lateral plateau, because valgus stress strikes it first and its bone is less dense than the medial side.

### When does a plateau fracture need surgery?

When the articular surface is stepped or depressed beyond about two to three millimetres, the knee is unstable, or the pattern is displaced bicondylar or dissociated.

### What complications make plateau fractures dangerous?

Compartment syndrome, popliteal vascular injury, peroneal nerve palsy, and later post-traumatic osteoarthritis and stiffness.

### What is a pilon fracture?

An axial-compression fracture of the distal tibial plafond at the ankle, the plateau fracture's counterpart at the lower end of the bone.