Table 1.
Anatomic type | Description | Treatment |
---|---|---|
I. Medullary | Endosteal nidus: Infection is confined to medullary space; treatment likely does not require bone grafting. | Small unroofing of cortex, curettage of medullary space, medullary reaming |
II. Superficial | Bone surface nidus: Infection is confined to outer surface of bone with soft tissue compromise. Treatment will not destabilize bone and thus will not require hardware fixation. | Superficial decortication Soft tissue coverage - Pedicle tissue flap - Free tissue flap |
III. Localized | Localized bone necrosis: Focalized sequestration of cortical bone. Excision may require fixation if there is a destabilized bone structure. | Sequestrectomy, medullary decompression, scar excision, superficial decortication, stabilization if necessary |
IV. Diffuse | Extensive bone destruction: Involvement of permeated destruction of cortical bone causes unstable bone structure. | Stabilization and soft tissue coverage are required; external fixation is the safest and most versatile technique. |
All four types of osteomyelitis require antibiotic coverage systemically with possible adjuvant local treatment: | ||
- Antibiotic laden beads. | ||
- Antibiotic cement spacers. | ||
- Antibiotic intramedulllary nail. | ||
- Local antibiotic powders. |