Why the Accu-SPINA is the best choice for Spinal Decompression ~Dr. Steven Thain As an expert in Nonsurgical Spinal Decompression (NSSD), Dr. Steven Thain's option holds significant weight with other spine specialists. For spinal decompression, he recommends IDD Therapy® treatment on the Accu-SPINA because of it's safety and advanced treatment options. Dr Thain is dual certified in Non-Surgical Spinal Decompression (NSSD); holds Masters Certificate in NSSD from the IMABSD; and is a member of the International Medical Board for Spinal Decompression (IMABSD).