Abstract: An internet-based patient health outcome data collection system, and a system for accessing information from the collected database. The system includes a web-based patient and doctor interface that allows both a patient and doctor to separately input data into the data collection database. The web-based patient interface allows a patient to input data such as responses to questions regarding levels of pain, function, satisfaction, quality of life, activities of daily living, unexpected results, and questions, pre- and post-procedure. The doctor interface also includes an analysis tool that allows the doctor to analyze the data from a specific patient, a group of patients, or all the patients, with specific characteristics as chosen by the doctor. The doctor interface also allows the doctor to compare an individual patient against a group of the doctor's patients, all patients in the study that meet criteria chosen by the doctor, or global data.