Hip replacement is an effective treatment for osteoarthritis, says a study that followed patients for an average of eight years after surgery.
Previous studies have warned against this surgery stating that it is not beneficial. But, the new research says that they only followed patients for a period of one-year.
The study, led by Professor Cyrus Cooper and Ms. Janet Cushnaghan of the University of Southampton in Southampton, UK, reviewed 282 patients who had OA and were placed on the waiting list for a hip replacement between 1993 and 1995.
The study also included 295 matched controls from the general population.
At the beginning of the study, patients were interviewed about hip injury, pain, physical function, vitality and mental health.
In addition, their BMI was calculated, their hands were examined for Heberdens nodes, an indication of OA, and their hip X-rays were evaluated for severity of OA.
Between 2001 and 2004, the patients completed a self-administered questionnaire asking if and when they had undergone hip replacement, as well as questions about their physical function, vitality and mental health.
Follow-up of the patients took place an average of eight years following hip replacement.
The analysis of the study revealed that patients who were waiting for a hip replacement had markedly worse physical functioning than the controls but only small differences in vitality and mental health at the start of the study.