Healing of a pars fracture can lead to a solid pars union but there are times a refracture can occur. In addition, if one side healed well, the opposite unhealed side can still cause pain. If your son went through a good protocol for healing (which it sounds like he did) and has pain after the healing period, the fracture might not have healed. A limited CT scan is most likely needed to look for healing.
Patients who heal well after pars surgery can generally go back to their activity that caused the initial fracture.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.