Tibial plateau and tibial-shaft fracture

01OverviewDefinition, clinical context and the essential points that orientate the chapter.

Mechanism predicts hidden injury. A lateral blow with axial load may depress the lateral plateau and injure the medial collateral ligament; higher-energy bicondylar injury can disrupt the metaphysis, menisci, cruciates, fibular nerve and popliteal vessels. Direct shaft trauma causes comminution and skin damage, while torsion causes a spiral line that may extend into knee or ankle. Record energy, contamination, crush duration, smoking, diabetes, vascular disease, anticoagulation, baseline mobility and tetanus status.

Examination is repeated. Expose the full limb, note deformity, swelling, blisters and wounds, and palpate the fibular head, knee, tibia, ankle and foot. Test dorsalis pedis and posterior tibial pulses, capillary refill and Doppler signals. Document ankle and toe movement plus superficial fibular, deep fibular, tibial, sural and saphenous sensation. Reassess power after alignment and analgesia.

Open injury changes priorities. Control catastrophic bleeding with direct pressure and a tourniquet when required by major-trauma practice. Do not probe, irrigate repeatedly or remove contamination in the emergency department. Cover the wound, give intravenous prophylactic antibiotics promptly, address tetanus, realign and splint. Debride immediately for highly contaminated or vascularly compromised wounds, within 12 hours for other high-energy open fractures and within 24 hours for other low-energy injuries.

Compartment syndrome is a clinical emergency. Pain out of proportion and passive-stretch pain may precede paraesthesia and weakness; pallor and pulselessness are late or indicate arterial injury. Release circumferential dressings, expose and safely elevate the limb, correct hypotension and re-evaluate within 30 minutes. If findings remain inconclusive, obtain senior review, hourly examination and pressures with concurrent blood pressure. Clinical diagnosis requires immediate decompression.

Radiographs classify the bone but not the limb. Plateau imaging starts with AP and lateral knee radiographs; oblique views may add information, but CT defines depression, widening and posterior fragments for fixation. MRI is selective for occult fracture or ligament and meniscal questions after the urgent bony and vascular plan. Shaft films must include the entire tibia, knee and ankle. CT assesses articular extension; CT angiography investigates suspected vascular injury in a perfused limb after alignment.

Definitive treatment balances reduction with biology. A stable, acceptably aligned closed shaft fracture may use a cast followed by functional bracing with close films; many displaced adult shaft fractures receive reamed intramedullary fixation. Plateau treatment aims for a stable, aligned joint and preserved soft tissue. Minimally displaced stable fractures can use a hinged brace and protected loading. Displaced or unstable articular injury commonly needs fixation, sometimes after temporary spanning external fixation while swelling and blisters settle.

Aftercare is an explicit prescription. Document weight-bearing status in plain language, permitted knee and ankle movement, splint or frame care and next radiograph. Begin safe range of motion when stability and tissues permit, maintain adjacent-joint movement and support smoking cessation and nutrition. Assess VTE and bleeding risk for lower-limb immobilisation; prophylaxis is individualised under NICE NG89. Persistent pain, drainage, fever, new numbness, tighter swelling or loss of alignment needs urgent reassessment.

Key points

Begin with trauma ABCDE and haemorrhage control; inspect from thigh to toes and examine skin, wounds, compartments, pulses, capillary refill and tibial and fibular nerve function before and after every manipulation.
For an open fracture, photograph once if policy permits, cover with saline-soaked gauze and an occlusive layer, give intravenous antibiotics as soon as possible and ideally within one hour, realign and splint, and avoid repeated wound inspection or emergency-department irrigation.
Do not rule out compartment syndrome because pulses are present. Escalating pain, pain on passive stretch, tense swelling and evolving sensory or motor change require immediate senior review and repeated documented examination.
Obtain AP and lateral radiographs spanning the knee and ankle for shaft injury; obtain AP and lateral knee films for plateau injury, then CT for articular mapping and operative planning.
Use CT angiography after immediate realignment when vascular injury is suspected but the limb remains perfused; hard signs or a persistently ischaemic limb need direct vascular and orthopaedic action without imaging delay.
Stable minimally displaced plateau or shaft patterns may follow protected non-operative care with close radiographic review; displaced articular, unstable, open or malaligned injuries need specialist fixation planning.
High-energy plateau fractures often require spanning external fixation until swelling and skin recover before definitive fixation; many adult displaced shaft fractures receive an intramedullary nail when soft tissues allow.
Every discharge or transfer plan must specify weight bearing, knee and ankle movement, wound and cast checks, VTE assessment, follow-up imaging and urgent return symptoms.

02AetiologyUnderlying causes, associations and risk factors, with why each one matters.

Plateau compression and shear

Axial load combined with valgus, varus or rotational force splits or depresses the articular surface; higher energy increases metaphyseal comminution and soft-tissue injury.

Shaft bending or torsion

Direct impact produces transverse or comminuted fractures and soft-tissue damage, whereas twisting more often produces spiral fractures with less obvious external trauma.

Fragility and pathological injury

Older osteoporotic bone can sustain a depressed plateau injury after a low-energy fall; atypical location or antecedent pain raises pathological fracture.

Paediatric physeal trauma

Proximal or distal tibial physeal injuries follow age-specific patterns and can disturb growth, so children require specialist classification and follow-up.

03PathophysiologyThe causal sequence from the underlying abnormality to symptoms and harm.

1
Articular incongruity
Plateau depression or condylar widening alters load distribution, while meniscal entrapment and ligament disruption create instability that can lead to post-traumatic osteoarthritis.
2
Soft-tissue envelope failure
The anteromedial tibia has little muscular cover, making swelling, fracture blisters, necrosis and open contamination central determinants of timing and reconstruction.
3
Compartment pressure rise
Bleeding and oedema within non-compliant leg compartments reduce capillary perfusion; prolonged ischaemia causes muscle necrosis, nerve injury, contracture, renal injury and systemic toxicity.
4
Vascular and neural traction
Proximal displacement can damage popliteal vessels or the common fibular nerve, while shaft injury can compromise anterior tibial circulation and deep fibular nerve function.
5
Mechanical instability
Shortening, rotation and angular malalignment change gait and joint loading; an unstable shaft fracture also perpetuates pain and further soft-tissue damage.

04Clinical features and red flagsSymptoms, examination findings, patterns of presentation and time-critical warnings.

Lateral plateau injury

Knee haemarthrosis, lateral tenderness and pain on axial load after valgus compression suggests lateral split or depression, especially in osteoporotic bone.

Bicondylar high-energy pattern

Gross swelling, instability and metaphyseal dissociation after major trauma signals severe articular and soft-tissue injury with compartment and vascular risk.

Tibial shaft fracture

Focal deformity, crepitus and inability to load with a transverse, oblique, spiral or comminuted diaphyseal line requires whole-limb assessment.

Open fracture

Any wound in the same limb segment may communicate with bone; wound size does not reliably represent deep contamination or periosteal stripping.

Evolving compartment syndrome

Increasing analgesic requirement, pain on passive toe stretch, tense compartments and progressive paraesthesia are more useful early than absent pulses.

Arterial injury

Hard signs include active haemorrhage, expanding pulsatile haematoma, bruit or thrill and distal ischaemia; asymmetric pulses or abnormal pressure index are concerning soft signs.

Red flags requiring action

An open wound, gross contamination, exposed bone, threatened skin, major deformity or uncontrolled bleeding needs immediate cover, antibiotics, alignment, splintage and orthopaedic trauma escalation.
Absent or asymmetric pulses, a cold pale foot, expanding haematoma, active haemorrhage, bruit or distal ischaemia after a plateau or shaft injury requires an emergency vascular pathway; a palpable pulse does not exclude intimal injury.
Pain out of proportion, escalating analgesic requirement, pain on passive toe movement, tense compartments or new paraesthesia or weakness suggests acute compartment syndrome; do not await paralysis or pulse loss.
A high-energy plateau fracture with knee dislocation features, marked swelling or peroneal deficit may conceal popliteal arterial, ligament and common fibular nerve injury even after spontaneous reduction.

05InvestigationsWhat to request, why it matters and how to interpret it.

Investigation order

Read from the initial assessment onwards. Tests may run in parallel in urgent care; first-line, preferred, confirmatory, definitive and gold-standard labels appear only when the chapter explicitly states them.

01
First-line orthogonal radiographsFirst stepFirst line
Why
Define plateau or shaft pattern, alignment and joint extension.
Interpretation and limitations
Use AP and lateral knee views for plateau injury and AP and lateral full-length tibial views including knee and ankle for shaft trauma; inspect the fibula and syndesmosis.
02
CT of the plateau
Why
Map articular depression, posterior fragments and metaphyseal comminution.
Interpretation and limitations
CT commonly changes operative classification and approach; obtain after provisional alignment when needed without delaying vascular or compartment treatment.
03
CT for shaft joint extension
Why
Define suspected proximal or distal intra-articular propagation.
Interpretation and limitations
Thin-slice multiplanar imaging clarifies plafond or plateau involvement that changes fixation, while uncomplicated diaphyseal patterns do not automatically require CT.
04
Serial neurovascular examination
Why
Detect delayed arterial thrombosis, swelling-related nerve compromise and post-reduction change.
Interpretation and limitations
Record named pulses, Doppler signals, perfusion and nerve modalities with time, examiner and comparison before and after splintage or transfer.
05
CT angiography
Why
Identify the location and character of suspected arterial injury in a still-perfused limb.
Interpretation and limitations
Use promptly after alignment for abnormal pulses, pressure index or concerning mechanism; bypass imaging when hard signs demand immediate operative control or revascularisation.
06
Compartment pressure measurement
Why
Support diagnosis when symptoms cannot be interpreted reliably.
Interpretation and limitations
Measure all suspected compartments with concurrent blood pressure. A diastolic minus compartment pressure below 30 mmHg indicates increased risk; an absolute pressure above 40 mmHg supports urgent decompression consideration by a consultant.
07
Targeted MRI
Why
Assess occult plateau injury or meniscal and ligament damage after immediate threats are settled.
Interpretation and limitations
MRI is not the routine first study in obvious high-energy fracture and must not delay reduction, CT planning or compartment and vascular care.
08
Trauma and operative blood tests
Why
Quantify bleeding and prepare for surgery without delaying limb-saving action.
Interpretation and limitations
Use FBC, renal and electrolyte profile, coagulation and group and screen according to injury and anticoagulants; trend haemoglobin, potassium, creatine kinase and renal function after crush or ischaemia.

06Differential diagnosisRealistic alternatives and the features that help distinguish them.

Knee dislocation

A reduced or unreduced dislocation can present with plateau-like pain but has particularly high popliteal arterial and multiligament risk.

Ligament or meniscal injury

Haemarthrosis and instability without visible fracture may reflect cruciate, collateral, meniscal or osteochondral injury requiring targeted imaging.

Ankle or proximal fibular injury

Rotational force may propagate to the syndesmosis, ankle or fibular neck, so isolated tibial tenderness must not end examination.

Acute bone or joint infection

Atraumatic fever, erythema and systemic illness suggests osteomyelitis or septic arthritis rather than closed traumatic fracture.

Stress fracture

Progressive load-related tibial pain with little acute trauma and initially subtle imaging may represent fatigue or insufficiency injury.

07ManagementImmediate care, first-line treatment, alternatives and escalation.

01EmergencyProtect life, limb and soft tissueFirst stepA tibial injury is open, grossly deformed, ischaemic or associated with possible compartment syndrome.

1Complete trauma ABCDE, control external haemorrhage and expose the entire injured limb while preventing hypothermia.
2Cover open wounds, give intravenous network prophylaxis immediately, verify tetanus requirements, align and splint without repeated wound handling.
3Document and repeat pulses, perfusion, named nerve function and compartment findings after every intervention and during transfer.
4Activate orthopaedic, plastic and vascular pathways according to contamination, tissue loss, perfusion and compartment findings; do not delay indicated surgery for cross-sectional imaging.

02PlateauRestore a stable aligned jointCT confirms a tibial-plateau fracture after urgent limb threats have been controlled.

1Assess displacement, condylar widening, alignment, stability, soft tissues and patient function rather than treating a classification number alone.
2Use a brace and protected loading with early specialist review for an acceptably aligned stable pattern and arrange interval radiographs.
3DefinitiveTemporise severe swollen high-energy injury with spanning fixation when needed and wait for skin recovery before definitive articular reconstruction.
4Repair or reconstruct displaced unstable joint surfaces with a plan for meniscal or ligament injury, then prescribe motion and loading precisely.

03ShaftAchieve union without malrotationA tibial-shaft fracture is closed or has completed initial open-fracture treatment.

1Confirm length, rotation, angulation and proximal or distal extension and reassess the compartments after analgesia and splintage.
2Use cast and functional-brace care only for a stable acceptably aligned pattern with reliable early radiographic surveillance.
3AlternativeUse intramedullary or alternative fixation for displaced or unstable adult patterns according to fracture level, contamination and soft-tissue reconstruction.
4EscalationReview wound, alignment and union and advance load only through an explicit plan, escalating infection, implant failure and delayed union early.

Key medicines and prescribing safety2 treatments · regimens, roles and cautions

Early systemic antibiotic exposure reduces infection risk before formal debridement in an open tibial fracture.

Intravenous open-fracture prophylaxis

Give the major-trauma network's specified intravenous agent and weight-based dose as soon as possible and ideally within 1 hour of injury; record agent, dose and administration time, then continue only for the protocol-defined contamination and operative course.

Check immediate allergy, renal function when relevant and prior doses, but do not delay the first appropriate dose for imaging; national guidance deliberately requires a network protocol because the universal agent and duration are not identical for every wound.

Reduces mortality from traumatic bleeding when incorporated early into a balanced haemorrhage-control pathway.

Tranexamic acid in major trauma with active or suspected bleeding

For an adult within 3 hours of injury, give 1 g intravenously over 10 minutes followed by 1 g intravenously over 8 hours when the major-trauma haemorrhage protocol indicates treatment.

Do not give more than 3 hours after injury unless specialist protocol states another indication; adjust decisions for thrombotic history, renal impairment and isolated minor limb injury, and never allow infusion to delay surgical haemorrhage control.

08ComplicationsImportant consequences, why they occur and why they matter clinically.

Acute compartment syndrome

Delayed recognition produces irreversible muscle and nerve damage, rhabdomyolysis, renal failure, infection, amputation and death despite later decompression.

Deep infection and nonunion

Open contamination, devitalised tissue, smoking, severe comminution and unstable fixation increase infection, delayed union and unplanned surgery.

Malalignment and arthritis

Varus, valgus, rotation or plateau incongruity causes abnormal loading, pain, instability and later knee or ankle osteoarthritis.

Neurovascular deficit

Popliteal arterial injury, thrombosis or common fibular neuropathy may persist or appear after reduction and swelling, requiring serial examination.

Stiffness and thromboembolism

Prolonged protection and knee injury cause loss of motion and venous thrombosis, making explicit mobilisation and prophylaxis plans essential.

09Monitoring and follow-upTreatment response, safety checks and longer-term review.

Assess at-risk patients hourly, recording time, pain and analgesic response, passive-stretch pain, tension, motor, sensory and vascular findings, interpretation and action.
Repeat pulse, capillary refill, temperature and Doppler findings after alignment, splintage, fixation, vascular repair and every clinically important change.
Inspect wounds, fracture blisters, pin sites and flap or graft tissue under the agreed orthoplastic schedule, escalating drainage, necrosis, fever or unexpected pain.
Measure alignment and healing on scheduled radiographs and assess rotation clinically before advancing brace, motion or weight-bearing stages.
After ischaemia, crush or compartment injury, trend urine output, potassium, creatine kinase, acid-base state and renal function and treat systemic reperfusion consequences.
Review knee and ankle range, gait, muscle strength, VTE risk and adherence to the written rehabilitation prescription at every transition.

10Special situationsVariants, exceptions and circumstances that change the usual approach.

A pulse is not a compartment test

Arterial pressure can remain sufficient to produce distal pulses while microvascular muscle and nerve perfusion is already critically reduced.

Plateau CT follows alignment

Cross-sectional detail is most interpretable after gross deformity is corrected, but neither CT nor classification should delay treatment of ischaemia.

The wound may be remote

A small wound away from maximal tenderness can still communicate with the fracture through a long internal tract.

Wrinkle and blister recovery matter

High-energy plateau fixation through tense swollen skin increases necrosis, so temporary stability can be safer than immediate definitive plating.

Rotation hides on AP films

Tibial malrotation can remain inconspicuous radiographically yet cause major gait and patellofemoral symptoms, demanding clinical comparison before fixation ends.

Union is not the only endpoint

Knee motion, ankle motion, pain, infection, alignment, return to work and confidence in loading determine meaningful recovery.

11Common pitfallsFrequent interpretation and management errors.

01
Using present distal pulses to exclude compartment syndrome or an intimal arterial lesion.
02
Cleaning or probing an open fracture repeatedly instead of covering it, delivering antibiotics and arranging formal orthoplastic care.
03
Obtaining only focal shaft views and missing proximal plateau, distal plafond, ankle, fibular or syndesmotic extension.
04
Waiting for paralysis, pallor or pulselessness before escalating progressive compartment symptoms.
05
Fixing a severely swollen plateau through compromised skin without a staged soft-tissue plan.
06
Writing non-weight bearing without duration, permitted joint movement, VTE decision or planned radiographic reassessment.