Open Fractures

An open fracture (also called a compound fracture) is a broken bone where the skin is also broken — the bone, or the area right around the break, is exposed to the outside world through a wound. That exposure is what makes it an emergency: bacteria reach the bone within minutes, and the chance of an infection that gets into the bone (osteomyelitis) or the joint (septic arthritis) goes way up. Surgeons grade severity on a I-through-IIIC scale (the Gustilo-Anderson system) based on wound size, how much muscle and skin has been stripped away, whether nearby blood vessels are torn, and how dirty the wound is. The worst grades — IIIB and IIIC — usually need a plastic surgeon involved to cover the wound after the bone is fixed.

Immediate care happens in the ER: cover the wound with a saline-soaked dressing, get IV antibiotics in within the first hour, update tetanus, and head to the OR for a thorough wash-out (irrigation) and removal of dead tissue (debridement).

• Visible bone or a wound directly over the break — sometimes the bone pokes through; sometimes the wound is small but sits right where the fracture is.
• Significant bleeding from the wound — the torn soft tissue around the fracture bleeds more than a simple cut.
• Severe pain with any movement of the limb — the combination of a broken bone and an open wound makes even gentle motion excruciating.
• Deformity of the injured extremity — the limb may look bent, shortened, or rotated compared to the other side.

An open fracture diagnoses itself — the bone is visible or the wound sits right over the break. We get X-rays of the fractured bone and the joints above and below it, and a CT scan if the fracture pattern is complex. If a major artery may be torn (the IIIC pattern), we check pulses and pressures in the limb and may order a CT scan of the blood vessels (CT angiography).

Every open fracture goes to the OR for a wash-out and removal of dead, contaminated tissue (irrigation & debridement). The classic teaching was within 6 hours; current evidence accepts up to 24 hours for the lower-grade open fractures as long as IV antibiotics start promptly. The bone itself is then stabilized — sometimes at the same surgery, sometimes in a follow-up procedure once the wound is clean.

External patient-education references and related OSI pages for additional background:

• Britannica — Bone disease (fractures)
• Britannica — Human skeleton
• AAOS OrthoInfo — patient education library
• OSI glossary — orthopedic terminology in plain language