There should not be an issue with PRP on the scalp and PRP injections into the knee. We do both PRP for hair loss and PRP and Stem Cell/ growth factors for joints. In PRP for hair, the extracted stem cells are injected into the scalp and generally they do not travel past the scalp. The same goes for joints. The extracted stem cells are inject directly into the joint and remain in the joint. We would not however, schedule them for the same day. To properly do PRP on the joint, we highly recommend a pretreatment peptide regime (30 days) to reduce inflammation in the joint prior to the injection. We find between a 5 -8% increase in positive outcomes by reducing inflammation prior to any injections.
PRP is very effective as a treatment for male pattern baldness. In order to evaluate the efficacy of PRP in your situation, we would need to do a physical evaluation to see the density of the hair follicles. As long as the density is still there, it should help. As to the Keto diet, I cannot comment either way until I saw more detailed information. We have patients on Keto as part of our weight loss program and we have not had anyone experience hair loss as part of that. However, certain people do not tolerate the high level of fats so their is the possibility that there could be advise side effects. Typically Type A blood types have a much more difficult time with Keto diets. They do not handle red meat and animal protein as well and as such struggle with a Keto diet. Hope this helps.
The period of time over which female hair loss is absolutely cause dependent. In cases of autoimmune disease, scar tissue can develop over a period of time which may make hair restoration attempts fail if it is very longstanding, similar to male pattern baldness (the earlier in the process we start treatment, the better the results). However, in cases of menopausal, thyroid, or stress related hair thinning (which covers the overwhelming majority of female hair loss), the hair loss process can often be halted or reversed by treating the underlying cause. Stem cell based hair restoration treatments can be very effective to help restore the hair after the disease process has been stabilized.