Table 4.
ORN rates related to mandibular surgery (MS) and DVH in OCC/MC patients at risk (> 60 Gy to the bone, n = 459; see also corresponding DVHs, Fig. 1.
| DVH: V50–60–65–70–75 Gy | MC postop no MS (72) | MC postop with MS (2) (1 segmental, 1 periosteal) | OCC postop with MS (60) | OCC postop no MS (46) | MC def. no MS (227) | OCC def. no MS (52) | |
|---|---|---|---|---|---|---|---|
| Periosteal or marginal (33) | Segmental (27) | ||||||
| ~ 11–5–2–0–0 cc | 0 % | 0 % | |||||
| ~ 17–10–4–1–0 cc | 39 % | 7 % | 7 % | 7 % | |||
| ~ 23–15–10–2.5–0 cc | (0 %)* | ||||||
DVH dose–volume histogram, MC mesopharyngeal carcinoma, OCC oral CAVITY Cancer, postop postoperative IMRT (prescription dose 60–66 Gy), def. definitive IMRT (prescription dose 70–72 Gy).
* see also Figure 2: short OAS of this subgroup