To evaluate the usefulness of hip arthrocopy in avascular necrosis of the femoral head (ONFH), which performed salvage operation or total hip arthroplasty (THA).
From May 1995 to March 2004, 16 cases who were diagnosed ONFH and got operation under art...
To evaluate the usefulness of hip arthrocopy in avascular necrosis of the femoral head (ONFH), which performed salvage operation or total hip arthroplasty (THA).
From May 1995 to March 2004, 16 cases who were diagnosed ONFH and got operation under arthroscopy were the subjects. Follow up periods was at least one year (range, 1.3-9.5 years). Clinical, radiological and arthroscopic findings were compared before and after surgery.
Degenerative lesions which were identified by not MRI but arthroscopy were femoral cartilage changes in 11 cases and acetabular cartilage changes in 14. Labral tears was in 12 cases, after removal pain was relieved during follow up. ARCO stages IIIa were 8 cases. Among them, 3 cases, which showed head's delamination with articular cartilage fracture got THA after arthroscopy, Among 13 cases, who got salvage operation, 5 cases were reoperated with THA due to collapseHip arthrocopy can be useful in the diagnosis and treatment of joint lesions, which can not be identified by MRI and which are causes of pain in ONFH. Hip arthroscopy can provide useful criteria in treatments such as salvage operation or THA depending on the femoral cartilage status. within a year.