I was wondering if hyperbarics could also work for for patellar tendonitis i know athletes use it alot?

It may : Hyperparic oxygen therapy has many indications and currently being researched for use in multiple conditions with some initial promising and some mixed results. This modality would not be the initial choice for treatment of a musculoskeletal injury unless would healing is also at issue.

Not likely: Patellar tendonitis is not a recognized diagnosis for hyperbaric treatments. The athletes that say they use it are mostly getting in a small oxygen tent. There is no increased pressure which is required for hyperbaric oxygen treatments.

Hyperbaric: It does not cure most diseases. There are only a limited number of conditions that hyperbaric has shown to help as an adjunctive therapy including diabetic foot ulcer of a certain depth, radiation soft-tissue injury, chronic refractory osteomyelitis, aspergillosis of the sinuses, for examples. It has no place in the healing of patellar tendonitis according to the literature.