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Tibial Shaft Fracture

Diaphyseal fracture of the tibia, the most commonly fractured long bone (492,000 cases/year US), with high incidence of open fractures (24 percent), compartment syndrome (1-9 percent), nonunion (5-10 percent), and infection due to subcutaneous anteromedial border; modern management via intramedullary nailing for closed displaced fractures with 95 percent union rate.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

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This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Ortopedi ve Travmatoloji department. Book Appointment →

What is Tibial Shaft Fracture?

Tibial shaft fracture (tibia diaphysis fracture, broken shin bone) is the most commonly fractured long bone in the body, with an annual incidence of 492,000 cases in the United States and 45 per 100,000 population per year. Mechanism varies by age: low-energy mechanisms (twisting injury, ground-level falls) predominate in elderly osteoporotic patients (often spiral fracture), high-energy mechanisms (motor vehicle accidents, motorcycle accidents, falls from height, sports injuries — football, skiing, soccer) predominate in young adults and adolescents, gunshot wounds (military, civilian violence). Bimodal age distribution with peaks in young males (high-energy) and elderly females (osteoporosis-related).

Anatomy and pathophysiology: Tibial shaft has a triangular cross-section with anterior and medial borders being subcutaneous (no muscle coverage anteriorly and medially), making it vulnerable to open fractures (24 percent of all tibial shaft fractures), poor soft tissue envelope and limited blood supply (tenuous endosteal and periosteal blood supply, particularly distally), and slower healing compared to other long bones. Concurrent fibula fracture is present in 78 percent of cases. Compartment syndrome (1-9 percent overall, up to 30 percent in tibial plateau extensions) is a feared complication due to limited compartment volume and proximity of major nerves and vessels.

Classification systems: 1) AO/OTA classification — 42-A (simple — A1 spiral, A2 oblique, A3 transverse), 42-B (wedge — B1 spiral wedge, B2 bending wedge, B3 fragmented wedge), 42-C (complex — C1 spiral, C2 segmental, C3 irregular); 2) Gustilo-Anderson classification for open fractures — Type I (clean wound < 1 cm), Type II (wound 1-10 cm without extensive soft tissue damage), Type III (wound > 10 cm or extensive soft tissue damage with periosteal stripping or contamination — IIIA adequate soft tissue coverage possible, IIIB extensive soft tissue loss with periosteal stripping requiring flap, IIIC vascular injury requiring repair); 3) Location — proximal third (within 5 cm of plateau), middle third, distal third (within 5 cm of plafond); 4) Tscherne classification for soft tissue injury in closed fractures (0-3 graded by severity).

Symptoms

Severe pain at fracture site immediately after injury
Inability to bear weight on affected leg
Visible deformity (angulation, shortening, rotation)
Swelling and bruising of leg
Crepitus (grating sensation) on movement
Open wound with bone visible (open fracture)
Tenseness of compartment, pain out of proportion to injury (compartment syndrome — surgical emergency)
Loss of sensation in foot (neurovascular injury — peroneal nerve, posterior tibial nerve)
Decreased or absent pedal pulses (vascular injury — surgical emergency)
Pallor, paresthesia, paralysis (5 P's of compartment syndrome — pain, pallor, paresthesia, paralysis, pulselessness)

Risk Factors

High-energy trauma (motor vehicle accident, motorcycle, falls from height, sports — football, skiing, soccer)
Low-energy trauma in elderly osteoporotic patients (spiral fractures from twisting falls)
Athletic activities (football, soccer, skiing, snowboarding, mountain biking)
Military activities (gunshot wounds, blast injuries)
Osteoporosis (postmenopausal women, elderly with vitamin D deficiency)
Stress fractures in runners, military recruits (overuse injury)
Pathologic fracture in metastatic disease (lung, breast, prostate cancer most common)
Bone disorders (Paget disease, osteomalacia, osteogenesis imperfecta)
Diabetes mellitus (impaired healing, infection risk)
Smoking (impairs bone healing, increases nonunion risk 2-3 fold)
Vitamin D deficiency (impairs healing)
NSAIDs prolonged use (controversial association with delayed healing)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Severe leg pain after trauma with inability to bear weight
  • Visible leg deformity, angulation, or rotation
  • Open wound on leg with bone visible (CALL EMERGENCY 112)
  • Compartment syndrome symptoms — severe pain disproportionate to injury, increasing pain, tightness, paresthesia (CALL EMERGENCY)
  • Loss of sensation or movement in foot after injury (neurovascular emergency)
  • Cold, pale foot with weak/absent pulses (vascular emergency)
  • Worsening leg swelling after recent injury
  • Inability to weight-bear after recent leg injury
  • Persistent leg pain after trauma 48-72 hours suggesting fracture
  • High-energy trauma (motor vehicle, fall from height)

Treatment Methods

01
Initial assessment in trauma setting: ATLS protocol — primary survey (ABCDE), secondary survey including detailed leg examination (deformity, swelling, open wound, neurovascular status — pulses, capillary refill, sensation, motor function of foot), photograph wound for documentation, sterile dressing, antibiotic prophylaxis for open fractures (cefazolin 2 g IV for type I/II, add gentamicin for type III, plus metronidazole or penicillin for soil contamination), tetanus prophylaxis, immediate compartment pressure measurement if compartment syndrome suspected (delta pressure < 30 mmHg = fasciotomy)
02
Imaging: AP and lateral X-rays of tibia/fibula including knee and ankle joints (rule out intra-articular extension, plateau or pilon fracture); CT scan if intra-articular extension suspected, complex fracture pattern, or planning surgery; MRI for stress fractures, occult fractures, soft tissue injury assessment; CT angiography if vascular injury suspected (ankle-brachial index < 0.9)
03
Conservative management (long-leg cast or functional brace per Sarmiento): indications — closed fracture with acceptable alignment (< 5° angulation in any plane, < 1 cm shortening, < 10° rotational deformity), low-energy injury, Gustilo type I open fractures with adequate stability after debridement; technique — long-leg cast with knee at 5-10° flexion, ankle at 90° for 4-6 weeks, then conversion to functional brace (PTB patellar tendon-bearing) for additional 8-12 weeks; weight-bearing as tolerated in functional brace; weekly to bimonthly X-ray follow-up to confirm alignment maintenance and healing progress; expected union 12-20 weeks
04
Intramedullary (IM) nailing (gold standard for displaced closed fractures and selected open fractures): indications — displaced closed fractures, segmental fractures, selected Gustilo type I/II/IIIA open fractures, polytrauma patients, pathologic fractures; technique — supine or semi-sitting position with knee in flexion, suprapatellar (modern preferred) or infrapatellar nail entry, reaming to 1-1.5 mm larger than nail diameter (controversial in open fractures — unreamed for type IIIB/C), nail insertion with proximal and distal locking screws (interlocking nail), intraoperative C-arm fluoroscopy for alignment and locking screws; expected union 12-16 weeks; weight-bearing as tolerated immediately post-op for stable patterns; complications include knee pain (50-70 percent — anterior knee pain from infrapatellar nailing), nonunion (5-10 percent), infection (1-5 percent for closed, 5-25 percent for open), nail breakage, locking screw failure
05
Plate and screw fixation: indications — proximal or distal third fractures with intra-articular extension (plateau, pilon), selected segmental fractures, periprosthetic fractures (around knee replacement), pediatric fractures (around physis), revision after failed IM nailing; techniques include MIPO (minimally invasive plate osteosynthesis) with submuscular plate, conventional ORIF with locking plate (particularly in osteoporotic bone); complications include hardware prominence, nonunion, infection (higher than IM nailing 5-15 percent for open), implant failure
06
External fixation: indications — severe open fractures (Gustilo type IIIB/IIIC), polytrauma with damage control orthopedics (DCO — temporizing fixation, definitive surgery delayed 1-2 weeks until soft tissue stable), severe contamination, vascular injury with planned revascularization, segmental bone loss requiring distraction osteogenesis (Ilizarov circular fixator); typical configurations include monolateral fixator (Hoffmann II, AO unilateral), circular fixator (Ilizarov, Taylor Spatial Frame), hybrid fixator; conversion to internal fixation (IM nail or plate) typically 1-2 weeks after soft tissue healing; complications include pin tract infection (10-20 percent), pin loosening, nonunion, deformity
07
Open fracture management: emergency care includes IV antibiotic prophylaxis within 1 hour of injury (cefazolin for I/II, add gentamicin for III, add metronidazole/penicillin for farm/soil contamination), tetanus prophylaxis, irrigation with normal saline (not high-pressure pulsatile lavage which damages tissue), debridement of devitalized tissue (skin, fat, fascia, muscle, bone) within 6-24 hours (Ostern golden hour philosophy debated), bone fragment retention if attached to soft tissue (preserves blood supply), wound coverage with vacuum-assisted closure (VAC) or definitive flap (rotational flap, free flap with microvascular surgery) within 5-7 days for type IIIB; antibiotic-loaded bone cement beads (PMMA + tobramycin/vancomycin) in defects, antibiotic continuation for 24-72 hours after final closure
08
Compartment syndrome management: emergency surgical fasciotomy within 6 hours of clinical diagnosis or compartment pressure measurement (delta pressure between diastolic BP and compartment pressure < 30 mmHg); two-incision four-compartment fasciotomy of leg (anterolateral incision releases anterior and lateral compartments, posteromedial incision releases superficial and deep posterior compartments); leave wounds open, secondary closure or skin grafting at 7-14 days; salvage attempts (limited evidence): hyperbaric oxygen therapy, mannitol IV; missed compartment syndrome (delayed > 12-24 hours) leads to muscle necrosis, contracture, peripheral nerve injury (Volkmann ischemic contracture), amputation
09
Postoperative care and rehabilitation: 1) Early phase (0-6 weeks) — pain control (multimodal — opioids, NSAIDs cautiously due to bone healing concerns, acetaminophen, gabapentin, regional anesthesia femoral or sciatic block), DVT prophylaxis (low-molecular-weight heparin for 4-6 weeks), wound care and dressing changes, weight-bearing per surgeon (typically WBAT for IM nail stable patterns, NWB for severe comminution), partial-weight bearing progression, gentle ROM exercises ankle and knee; 2) Intermediate phase (6-12 weeks) — progressive weight-bearing, gentle resistance exercises, stationary bicycle, hydrotherapy; 3) Late phase (12+ weeks) — full weight-bearing, return to normal activities, sport-specific rehabilitation for athletes, gradual return to high-impact sports at 6-12 months
10
Long-term complications and management: 1) Nonunion (5-10 percent — no radiographic healing at 6-9 months) — investigate and address atrophic (poor blood supply, biology — bone graft autologous iliac crest, BMP-2, electromagnetic stimulation) vs hypertrophic (instability — revision IM nail or plate fixation); 2) Malunion (5-10 percent — angulation > 5° in any plane, rotational > 10°, shortening > 1 cm) — corrective osteotomy if symptomatic (gait disturbance, knee/ankle arthritis); 3) Infection (1-25 percent depending on open vs closed) — debridement, hardware retention if early < 3 weeks, hardware removal and revision if late, IV antibiotics 6 weeks (vancomycin + gram-negative coverage initially, narrow per culture), plastic surgery consultation for soft tissue coverage; 4) Post-traumatic arthritis (knee, ankle) — analgesics, intra-articular injections, eventual joint replacement; 5) Heterotopic ossification (rare); 6) Refracture (rare with proper rehabilitation)

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.