ABSTRACT
BACKGROUND:With the prevalence of total hip arthroplasty,the demand for revision has been increased due to the prosthesis life and various complications.OBJECTIVE:To retrospectively analyze the reasons and clinical effectiveness of revision,clinical application of revision prosthesis,and related revision techniques.METHODS:Clinical data of 85 patients undergoing total hip revision were analyzed retrospectively.Among which,there were 23 cases of biological T.O.P acetabular cup (allograft bone graft) plus polyethylene liner,51 cases of titanium mesh cup plus bone cement fixation,and 11 cases of common acetabular cup;common hip stem in 63 cases (including 47 cases of bone cement fixation);lengthened hip stem in 34 cases (16 cases of modular prosthesis and 18 cases of bone cement fixation).Subsequently,the hip function was assessed by Harris hip scores.RESULTS AND CONCLUSION:All cases were followed up,and the mean follow-up was 30.2 months.(1) The average Harris hip scores changed from preoperative 30.07 to postoperative 90.32.The wound healed well,no dislocation or infection,and the hip function was improved significantly.(2) To conclude,aseptic loosening of the prosthesis is the main cause of reversion occurred,followed by prosthesis dislocation.Acetabular wall bone defect and decrease in bone mass are the main problems in revision.Adequate preoperative preparation for possible and unexpected events,and reasonable selection of prosthesis according to the bone defects will be helpful.Noticeably,early arthroplasty reversion will obtain good clinical efficacy.
ABSTRACT
Objective To discuss the X-ray characteristics of triple negative breast cancer(TNBC)for improving the diagnostic level.Methods 105 cases of TNBC which confirmed by pathology and immunohistochemistry were analyzed their X-ray performance and clinical pathology.Results (1)The main pathologic types of TNBC was infiltrating ductal carcinoma(64 cases,61.0%),secondly was medullary carcinoma(24 cases,22.9%).(2)The X-ray manifestations of this group were mainly the mass shape(78.1 %).Nearly half of them had clear edge(46.3%).And 24.4% were tumor with calcification.(3)The calcification in TNBC was rare and the distribu-tion mainly for regional or cluster,while the morphology was mainly for malignant and suspicious for malignancy.(4)The X-ray per-formance characteristics of infiltrating ductal carcinoma and medullary carcinoma in TNBC had differences in tumor morphology and edge(P <0.05).Conclusion (1)The X-ray manifestations were always the circular similarity of tumor with clear edge in TNBC.(2) The proportion of medullary carcinoma is larger in TNBC,and the X-ray manifestations is more likely show as benign lesions.(3) The calcification probability is lower in TNBC,and the calcification form is mainly as suspicious for malignancy and malignant.
