A motorcyclist sustains an open fracture of the tibial shaft. The wound measures 8 cm, there is extensive stripping of the periosteum, and the exposed bone cannot be covered by the wound edges. No vascular injury is present. According to the Gustilo-Anderson classification, this is:
- A Type II
- B Type IIIB ✓
- C Type IIIA
- D Type IIIC
Correct answer: B. Type IIIB
Explanation
Gustilo Type IIIB is defined by extensive soft tissue loss with exposed bone that requires a local or free muscle flap for coverage. Type IIIA has adequate soft tissue coverage despite the open wound, Type II lacks exposed bone, and Type IIIC requires an associated arterial injury needing repair, which this patient does not have.
Reference: Apley's System of Orthopaedics and Fractures, 10th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.