The Usefulness of Three-dimensional Computed Tomography as an Assessment of Periacetabular Osteolysis in Revision Total Hip Arthroplasty
نویسندگان
چکیده
PURPOSE This study was performed to determine the usefulness of three-dimensional computed tomography (3D-CT) in measuring periacetabular osteolysis by comparing the real volume of osteolysis in revision surgery. MATERIALS AND METHODS Twnety-three patients who had undergone revision surgery due to periacetabular osteolysis but not included septic osteolysis and implant loosening. The mean age of patients at the time of surgery was 55.2 years. And the mean time interval between the primary total hip arthroplasty and revision surgery was 13.3 years. We measured the polyethylene wear in plain radiographs using computer assisted vector wear analysis program, the volume of acetabular osteolytic lesions in high-resolution spiral CT scans using Rapidia 3D software version 2.8 algorithms before the revision surgery were performed. Intraoperative real osteolytic volume was calculated as the sum of the volumetric increments of the acetabular cup and impacted allo-cancellous bone volume. RESULTS Strong correlation was found between the volume of acetabular osteolytic lesions measured on 3D-CT and intraoperative real osteolytic volume which was calculated as the sum of the volumetric increments of the acetabular cup and impacted allo-cancellous bone volume. CONCLUSION 3D-CT is considered a useful method for assessing and measuring the volume of periacetabular osteolysis before revision surgery.
منابع مشابه
Volumetric computerized tomography as a measurement of periprosthetic acetabular osteolysis and its correlation with wear
Osteolysis, which is considered to be a major source of morbidity following total hip joint replacement, has been notoriously difficult to measure accurately, particularly in the acetabular area. In order to study periacetabular osteolysis, specialized software for computerized tomography (CT) scan image analysis has been developed. This software (3D-CT) eliminates metal artifacts, allows three...
متن کاملProgression of Periacetabular Osteolytic Lesions
INTRODUCTION: Osteolysis adjacent to the acetabular component of hip prostheses remains the most challenging complication of total hip arthroplasty in the medium to long-term. This loss of bone can cause the prosthesis to lose fixation and, when severe enough, can lead to fracture of the pelvis. Therefore, knowledge of how osteolysis develops and progresses is important in order to develop opti...
متن کاملCorrelation between Periacetabular Bone Density Changes and Stress Behaviour after Total Hip Arthroplasty
Introduction Little is know about periacetabular bone remodeling after insertion of the acetabular cup in total hip Arthroplasty. Dual energy X-ray absorptiometry (DXA) is commonly used for quantitative assessment of bone remodeling after total hip arthroplasty (THA). DXA is limited by low resolution and a lack of three-dimensional information. Computed tomography (CT) is a standardized radiolo...
متن کاملAssessment of wear and periacetabular osteolysis using dual energy computed tomography on a pig cadaver to identify the lowest acceptable radiation dose
OBJECTIVES Computed tomography (CT) plays an important role in evaluating wear and periacetabular osteolysis (PAO) in total hip replacements. One concern with CT is the high radiation exposure since standard pelvic CT provides approximately 3.5 millisieverts (mSv) of radiation exposure, whereas a planar radiographic examination with three projections totals approximately 0.5 mSv. The objective ...
متن کاملRisk Factors for Periacetabular Osteolysis and Wear in Asymptomatic Patients with Uncemented Total Hip Arthroplasties
Osteolysis is a silent disease leading to aseptic loosening. This has not been studied in a cohort of asymptomatic patients. The aim of this study was to detect factors that might be associated with the development of periacetabular osteolysis and wear around an uncemented cup. We assessed 206 patients with an uncemented cup, measuring wear and periacetabular osteolysis using computed tomograph...
متن کامل