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Table 3 Osteomyelitis scoring system—histology

From: A rabbit osteomyelitis model for the longitudinal assessment of early post-operative implant infections

Morphological abnormality Histological staining Score (per abnormality)
Cortical thickening Masson-Goldner 0: absent
Presence of micro-abscesses 1: mild to moderate
Enlarged Haversian canals 2: moderate to severe
Periosteal elevation Fluorescent calcium indicators  
Gram stain Modified Gram stain 0: negative
   2: positive
  1. Total histological score and osteomyelitis grade: 0–3, no osteomyelitis; >3–5, mild; >5–7, moderate; >7–10, severe.