摘要
目的了解人工髓关节置换术（totalhiparthroplasty,简称THA）后异位骨化的发病情况及其X线表现。方法对333例（352个髋关节）接受THA的病例作了术后X线随访，时间最短者1年，最长者12年。按Brooker分级法加以分级记录，并与性别、年龄、手术原因等作了比较。结果在随访X线片上共发现异位骨化69例，检出率20.7％，男性较女性检出率高7.2％，但与年龄关系不大。85．5％（59例）的异位骨化出现在术后1年内，但也有迟至术后8年者(1例）。按Brooker分级方法，85．0％均属Ⅰ-Ⅲ级，Ⅳ级者仅15％。因强直性脊柱炎手术而发生严重异位骨化者要较其他病因为多。在X线片上早期的骨化皆位于髋关节外侧，以后在内侧也逐渐出现，形态各异以条片状为多，即使在Ⅳ期时仍以髓关节外侧骨化数量为多。结论异位骨化是THA术后常见的并发症，X线平片是诊断本病最简便经济的方法，也是临床确定治疗方案的主要依据。
Purpose TO study the incidence and X-ray findings of heterotopic ossification (HO) after total hip arthroplasty (THA). Methods 333 cases (352 hip) after THA were followed by X-ray examination for 1-12 years. Evaluation of HO from X-ray films using Backer's classification was made and X-ray findings were correlated with sex, age and operative causes. Results In our study, HO after THA was noted in 69 cases on X-ray films. The incidence was 20. 7%. Higher in the male than in female by 7. 2%, but no significant correlation with the age (P＞0. 05 ). Most (85. 5 % ) of HO happened within one year after operation but in one case as long as eight years after operation. In thes group, 85 .0% of the HO belonged to Grade Ⅰ-Ⅲ, the ramaining was grade Ⅳ. Severe HO was most frequently noted in the Patients operated for Ankylosing Spondylitis. On X-ray film, the calcilications were located on external side of hip joint in early stafe, and later also seen on internal side, the former being the dothenant side. Calcification usually took the form of stripe or Patch. Conclusion HO is a common post-operative complication. X-ray plain film is a simple tool on diagnosing this disease and Planning clinical therapy.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1998年第9期641-643,共3页
Chinese Journal of Radiology
