My mother had a pallidotomy back in May because of her severe rigidity. It was a unilateral pallidotomy so it only alleviated one side of her body. She will have another unilateral within two months to alleviate her other side. It has helped her. Teresa, Daughter of Mama (57/43/38) -----Original Message----- From: Parkinson's Information Exchange [mailto:[log in to unmask]]On Behalf Of Debbie White Sent: Sunday, September 05, 1999 9:40 PM To: [log in to unmask] Subject: Surgery for rigidiity I seem to remember reading awhile back about brain surgery (pallidotomy, I think) to address rigidity. Has anyone heard anything more about this? Are they doing trials somewhere? Thanks. Debbie White [log in to unmask]