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Any advice or shared experiences with SpaceOAR Hydrogel?

Prostate Cancer | Last Active: 2 hours ago | Replies (18)
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@dgd1953

I don’t believe a spacer is ever used for salvage radiation. The spacer goes between the prostate and the rectum, so without a prostate there is no place to put the spacer.

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Replies to "I don’t believe a spacer is ever used for salvage radiation. The spacer goes between the..."
heavyphil | @heavyphil | 1 day ago

Yup….and even if they could devise a barrier external to the rectum, it would be counter- productive for salvage cases.

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brianjarvis | @brianjarvis | 11 hours ago

SpaceOAR after prostatectomy is very rarely done, but it apparently can be done to reduce radiation dose to the rectum. I think it’s because most believe SpaceOAR’s only use is to distance the rectum from the prostate being radiated, when it’s actual purpose is to distance the rectum from whatever is being radiated.
As these papers point out, SpaceOAR can be used in the salvage radiation setting to distance the rectum from the local cancer recurrence where the prostate was.
Here are papers from 2015 about this:
> https://pubmed.ncbi.nlm.nih.gov/25339311/

> https://abstracts.mirrorsmed.org/abstracts/feasibility-spacer-insertion-dose-escalated-post-prostatectomy-radiotherapy-pprt-and

Here is a paper from 2019 about this: https://medcraveonline.com/IJRRT/IJRRT-06-00224.pdf

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