What Researchers Did
Researchers combined the results of several existing studies to see whether hyperbaric oxygen therapy (HBO2) helps a patient's own bone graft heal and integrate after reconstructive surgery.
What They Found
This meta-analysis of 11 studies (7 with data usable for pooled statistics) found that HBO2 was linked to a moderate to strong effect on bone graft integration compared to control groups, with a pooled standardized mean difference (SMD) of 1.476 (95% CI: 0.814 to 2.138), though variability between studies was substantial (I² about 77%). A subgroup of orthopedic studies showed a stronger and more consistent effect (SMD: 1.995, 95% CI: 1.117 to 2.873) with much less variability (I² = 3.361%). Observational data suggested possible benefits for maxillofacial grafts, but the abstract notes many of those studies were small or lacked control groups. One study on cranial bone grafts reported a negative result, showing the effect was not consistent across all bone graft types.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The abstract notes reliance on animal models, limited human data in maxillofacial settings, and considerable heterogeneity between the included studies as key limitations.