Safety and Effectiveness of the HIT Reverse HRS

This study is evaluating the safety and performance of the HIT Reverse Hip Replacement System — a new total hip replacement (THA) implant — in patients with non-inflammatory degenerative joint disease (such as osteoarthritis or avascular necrosis). The study tracks how well patients recover and how long the implant lasts. You may be eligible if... - You are between 50 and 75 years old - You need a primary (first-time) total hip replacement on one side - Your hip problem is due to osteoarthritis, avascular necrosis, post-traumatic arthritis, or similar non-inflammatory causes - You have been medically cleared for surgery - You are willing to attend all follow-up visits You may NOT be eligible if... - You have had a hip replacement, hemi-arthroplasty, or fusion in the other hip within the last 2 years (or more than 2 years ago but still causing pain) - You need a bilateral hip replacement or plan to have the other hip done within 2 years - You need a knee replacement within the next 2 years - You have a known allergy to titanium, XLPE, or cobalt chromium (CoCr) - You have had a joint infection in the affected hip - You have a BMI of 40 or higher - You have an active malignancy or history of cancer within the last 5 years (with exceptions) - You have rheumatoid arthritis, lupus, or another inflammatory joint disease - You are pregnant or planning to become pregnant Talk to your doctor to see if this trial is right for you.