VIDEO: A Case Of Kidney Deficiency: Diagnosis and Treatment With Japanese Acupuncture, Part 3. Posted 28/6/10. This case study provides a classic example of a patient with Kidney Yin Deficiency. The third part of this three part series covers the back treatment. A well-tailored back treatment can greatly augment the efficacy of the root treatment, and here you will see a back treatment that is very effective at tonifying the kidney yin.