This case after the use of a morcellator is interesting
"Uterine myomas are the most common female genital tumour and occur in ~25% of reproductive-aged women"
"Parasitic myoma after laparoscopic surgery is very rare condition, there are almost 35 cases in the literature"
Temizkan O, Erenel H, Arici B, Asicioglu O. A case of parasitic myoma 4 years after laparoscopic myomectomy . J Min Access Surg 2014;10:202-3
Here we have a first measure of what "risky medical procedure" means in this case. Less than 0.07%. It seems that those are extremely rare cases, not justifying returning to old procedures that involve more pain and more health risk for 50.000 women. More invasive procedures equal to more people dying in operating theathers or in post-operative phase by the risks of surgery. Cancer is a drama of course, but this looks like a "lets kill thousands to save tens". More research is needed.