Nishio’s Resurfacing Hip Arthroplasty (Mizuho)

In Japan, around 1970, total hip arthroplasty (THA) was already being performed for patients aged 65 years or older, but it was not suitable for adolescent patients due to poor durability. Therefore, arthrodesis or cup arthroplasty was performed for end-stage hip arthritis in adolescent patients who would not benefit from osteotomy or acetabuloplasty. Cup arthroplasty was a “hard-to abandon” treatment according to Nishio’s description [1], but its inconsistent results and complicated postoperative treatment led to the development of socket-and-cup resurfacing hip arthroplasty for the improvement of cup arthroplasty. In a special issue on the resurfacing hip arthroplasty of Clinical Orthopedics and Related Research published in 1978, in addition to reports from Europe and the United States, Nishio [2], Furuya [3], affiliated with Tokyo Medical and Dental University, and Tanaka [4], affiliated with Kinki University, gave reports from Japan, and each of them had developed and improved their own implants.