Frontal sinus obliteration after trauma: analysis of bone regeneration for two selected methods |
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| Affiliation: | 1. Oral and Maxillofacial Surgery Department, 12 de Octubre University Hospital, Madrid, Spain;2. Clinic Research Department, IMAS12-CIBERESP, 12 de Octubre University Hospital, Madrid, Spain;3. Neurosurgery Department, 12 de Octubre University Hospital, Madrid, Spain;1. Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland;2. Laboratory of Oral Cell Biology, School of Dental Medicine, University of Bern, Bern, Switzerland;1. Department of Maxillofacial Surgery, Clinic of Dentistry, Tartu University Hospital, University of Tartu, Tartu, Estonia;2. Internal Medicine Clinic, Tartu University Hospital, University of Tartu, Tartu, Estonia;3. Center of Prosthodontics, Clinic of Dentistry, Tartu University Hospital, University of Tartu, Tartu, Estonia;1. Department of Oral and Maxillofacial Surgery, The Herman Ostrow School of Dentistry, Los Angeles County/USC Medical Center, University of Southern California, Los Angeles, CA, USA;2. Orthodontics, Warwick Dentistry, Warwick Medical School, University of Warwick, Coventry, UK;3. Oral Implantology and Regenerative Dental Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan;1. Department of Ophthalmology, Mid Western Regional Hospital, Limerick, Ireland;2. Department of Oral and Maxillofacial Surgery, St James Hospital, James'' St, Dublin 8, Ireland;1. Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan;2. Department of Plastic Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan;3. Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung, Taiwan;4. Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan;5. Department of Ophthalmology, EDA Hospital, I-Shou University, Kaohsiung, Taiwan;6. Department of Ophthalmology, University to Washington, Seattle, WA, USA |
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| Abstract: | We present a prospective randomized experimental study comparing bone regeneration obtained in 60 post-traumatic frontal sinuses obliterated with either calvarial bone dust (n = 30, group I) or calvarial bone and demineralized bone matrix (DBM; n = 30, group II). Radiological follow-up included high-resolution computed tomography with quantitative micro-density analysis in Hounsfield units (HU), together with a volumetric evaluation of the ossification at 6 and 24 months after surgical treatment. Epidemiological information and potential drawbacks were analysed. Bone volume and density data (HU) for the regenerated areas were subjected to statistical analysis at 6 and 24 months for both groups. Results were compared with reference values obtained from frontal and temporal bone in every patient. Complications developed for 10% of operated sinuses. The resulting bone formation (HU) in group I patients was significantly better than that obtained in group II. Ossification progressed in a statistically significant manner in both groups when compared at 6 and 24 months postoperatively. The use of DBM as a biomaterial associated with calvarial bone dust for sinus obliteration shows long-term safe results, similar to autogenous bone, but with a lower final bone density. |
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| Keywords: | subcranial approach Hounsfield units (HU) frontal sinus demineralized bone matrix (DBM) calvarial bone dust |
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