Dr Lee, Yes, she got right joint dislocation on her right back leg a month ago. She will perform a surgery to "fix" the joint this Friday. However, my doctor said it may adversely affected her CHD problem. Anyway, she is now walking without using her right back leg most of the time. My doctor my gave me a medicine called "Cartiflex" ONLY. She is now 1 year only with 25.5 KGs. I wonder if it's necessary to do the TP
O/THR for her CHD problem. Thanks very much for your advices in advance.