Page 72 - Craniomaxillofacial Implant Surgery - Jeroen P.J. Dings
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Chapter 4
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Distribution of orbital implants according to the follow-up periods
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25-36 37-60 >61 Follow-up (months)
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Figure 4 Distribution of orbital implants according to the follow-up periods. the follow-up periods
Lost (AA implants) In function
Lost (DA implants)
Distribution of nasal implants according to
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0
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7-12 13-24 Lost (DA implants)
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25-36 Follow-up (months)
Lost (AA implants)
37-60 >61 In function
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Figure 5 Distribution of nasal implants according to the follow-up periods.
Two orbital implants were lost in the supraorbital rim, one in the lower rim and five at the lateral rim. Four implants were lost at the piriform site, one at the anterior nasal spine and two paranasal (horizontally positioned). Differences in implant loss between various anatomical implant locations were not significant (p = 0.408).
Eleven patients (34 implants) received adjunctive HBO treatment, eight patients with 26 orbital implants and three patients with seven nasal implants. Conform to the protocol, HBO therapy was indicated for patients who received radiation therapy prior to their extra- oral implant surgery. It could not be shown that HBO significantly improved functional outcome of implants which were installed in already irradiated bone (p = 0.612).
Number of implants Number of implants
