Clinical Study And Curative Effect Analysis Of Total Hip Arthroplasty Used In Ankylosing Spondylitis With Tetanic Deformity Of The Hip

Objective: To discuss the surgical methods of total hip arthroplasty (THA) in patients with ankylosing spondylitis (AS)and find out its curative effect after THA operation. Patients and Methods:1. Patients: From 2002 to 2006,9 AS patients ( n of hips= 18) were studied in this group whose ages were from 26 to 49 and the average age was 36.8.They all fulfilled the dianostic criteria of ankylosing spondylitis (NewYork criteria of AS, 1984).both laterals of these patients were involved. The Harris hip scores before THA operation were 16 to 38 and the average scores were 26.0.2. Methods: total hip arthroplasty was performed on both lateral hips at the same time with a lateral incision .Antiseptic treatment and systemic healing exercise was regular after operation. A follow-up for 6 to 26 (mean 18) months was followed .then therapeutic effect was evaluated by Harris grade system and x-ray examination.Results:1. Incision infection ,DVT and injury of nerve and vessels were not found.There were also no dislocation ,aseptic loosening or fracture of prosthesis .The difference of both lower limbs is less than 2 cm .The pain was eased after...