Open Tibia Fracture With an Absent Foot Pulse

This is a Gustilo-Anderson type IIIC open tibia fracture: an open fracture with an arterial injury requiring vascular repair. The absent foot pulses, cool foot, delayed capillary refill, and reduced sensation indicate limb-threatening ischemia. The first priorities are ATLS principles: control obvious hemorrhage with direct pressure, secure two large-bore IV lines, take blood for cross-match, and begin blood transfusion because the patient is hypotensive and tachycardic. Give oxygen, monitor continuously, and provide analgesia. Do not repeatedly probe the wound or delay for unnecessary imaging. Cover the wound with a saline-soaked dressing, splint the limb, and document the neurovascular status once. Give intravenous antibiotics and tetanus prophylaxis early. Notify the orthopaedic and vascular teams immediately, arrange urgent operating theatre access, and activate the massive transfusion protocol if needed. The goal is to restore perfusion within about 6 hours of injury. Transfer to another centre should not delay resuscitation or initial debridement if the local team can act.

Give antibiotics within 1 hour of presentation. A reasonable regimen is cefazolin 2 g IV plus gentamicin 5 mg/kg IV; because the wound is contaminated with soil, add metronidazole or high-dose penicillin to cover anaerobes. Continue antibiotics for 24-48 hours after debridement, and longer if there is established infection or significant contamination. Tetanus status: he received toxoid 3 years ago, so give a tetanus toxoid booster. He does not need immunoglobulin if the primary series is complete and the booster is recent, but if the immunization history were incomplete or unknown, give both toxoid and human tetanus immunoglobulin. Urgent surgical debridement is essential: copious irrigation with several litres of saline, removal of foreign material and devitalized tissue, and preservation of bone and neurovascular structures. The wound should be left open and packed, with a planned second look in 24-48 hours. Do not close a heavily contaminated open fracture primarily. Obtain intraoperative cultures, but do not delay antibiotics for cultures.

The sequence should be debridement first, then rapid skeletal stabilization, then vascular repair, with a temporary vascular shunt used if necessary to shorten ischemia time. The rationale is that an unstable fracture can disrupt a fresh vascular anastomosis, so the bone should be stabilized before or during revascularization. If skeletal fixation would take too long, place a temporary shunt to restore flow while the wound is debrided and an external fixator is applied; then perform the definitive vascular repair. External fixation is preferred initially because it is quick and avoids contamination of internal hardware. Perform fasciotomy if compartment pressures are elevated or if ischemia time is prolonged. Document warm ischemia time and aim for revascularization within 6 hours. After repair, monitor pulses, Doppler signals, compartment status, and renal function, because reperfusion can cause rhabdomyolysis and compartment syndrome. Soft tissue coverage is planned later, after repeated debridements.