Yeah Surgery is much hard and difficult and normal surgeon can not able to take as master surgeon. In that surgery many risks check this detail
http://www.surgcare.co.za/infosheets/Parathyroidectomy.pdf

Instead I hope that with medicine. Did you try this homeopathy or acupuncture?? Homeopathy is so cheaper I know that and so much effective and also they are made from plants substances.
 Treatment of Hypoparathyroidism

– Homeopathic Treatment of Hypoparathyroidism

Homeopathy has good reputation of rebalancing hormonal disorders. It relieves complaints and improves overall health. It treats the person as a whole. Treatment is constitutional. It means that homeopathic treatment focuses on the patient as a person, as well as his pathological condition. It balances the energy system, improves immunity and body functions. It naturally cures the root cause of disorder. Some of the homeopathic medicines that can be used for treatment of Hypoparathyroidism are:

 Calc
 Kali C
 Sulph
 Graph
 Sepia
 Silicea

– Acupuncture and Acupressure Treatment of Hypoparathyroidism

Acupuncture relieves by improving the physiological function of the organs and organ system. In acupuncture therapist will first diagnose the case on the basis of energy system or chi blockage as well as on the basis of status of five elements. On this basis certain disease specific acupoints are selected and stimulated.

May God help you Amen