Oxford Hip Score is a patient-centered questionnaire that is designed to assess functional ability and pain from the patient's perspective. It is a short, twelve-item questionnaire developed for completion by patients undergoing THA. Minimum score 0 indicating worst outcome, maximum score 48 indicating best outcome.

The validated Hip disability and Osteoarthritis Outcome Score questionnaire is designed for patients with hip Osteoarthritis, it consists of 40 questions which assesses Pain, Symptoms, Activities of Daily Living, Sport and Recreational and Hip related Quality of life. To answer the questions, standardized answer options are given in 5 Likert-boxes with scores from 0 to 4 (no, mild, moderate, severe and extreme).

To interpret the score, the outcome measure is transformed in a worst to best scale from 0 to 100, with 100 indicating no symptoms and 0 indicating extreme symptoms.

All hip-related and device-related complications, including those occurring during the surgical procedure and throughout the postoperative evaluations, are required to be documented and reviewed

Survivorship measured via Kaplan-Meier (KM) curve.

Radiographic assessment considering radiolucent lines, stem alignment, heterotopic ossifications, osteolysis.