Artificial Joint : Total Hip Arthroplasty (Present Status of Artificial Organs)

In 1960, John Charnley, a pionner of total hip replacement, first developed low-friction arthroplasty. Total hip arthroplasty should be indicated for an older patient with primary or secondary osteoarthritis and for a younger patient under certain circumstances in order to relieve pain, preserve or increase mobility of joint. Highly dislocated hip joint secondary to congenital dislocation reveals that original acetabulum is too tiny and shallow to replace with cup prosthesis. The authors introduced a new procedure to enlarge acetabulum, T-shaped acetabular osteotomy and lengthening of hip joint by distracting external fixator applied in ilium and femoral shaft. This procedure is unique and useful in highly dislocated hip joint.