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EnglishASEPTIC LOOSENING OF A LONG TERM CEMENTED HIP ARTHROPLASTY can occur for many reasons, "wear debris disease (WDD), that is a chain of events occurring around the implant by polyethylene debris, can be a major cause. This study shows the results of the histological and histomorphological study on a dog in that was implanted a total cemented hip prothesis six years earlier. The prostheses utilized were the Richard II Type with a smooth long-necked steel stem and a polyethylene acetabular cap. Stem and acetabular cups were fixed using Polymetilmetacrilate (PMMA). Histopathological sections of membranes in the bone cement interface were colored with hematoxylin-eosin, according to well-known procedures The histological examination of left femur showed areas with plenty of giant plurinucleated macrophagal cells, containing translucent foreign bodies associated with polyethylene wear debris. Histomorphometric and microradiographic exams obtained from the right femur sections of the dog in the study and of a control femur of another German Shepard of the same age, size and sex showed a number of differences both in shape and microscopic structure with different levels of erosion cavities percentage, in the number of secondary newly-deposited osteons/mm2 and in the percentage area of eerosion surfaces in the endosteum.
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| Titolo: | HISTOMORPHOLOGICAL STUDY ON ASEPTIC LOOSENING IN CEMENTED TOTAL HIP ARTHROPLASTY IN DOGS : CASE REPORT |
| Autori: | |
| Data di pubblicazione: | 2001 |
| Rivista: | |
| Abstract: | ASEPTIC LOOSENING OF A LONG TERM CEMENTED HIP ARTHROPLASTY can occur for many reasons, "wear debris disease (WDD), that is a chain of events occurring around the implant by polyethylene debris, can be a major cause. This study shows the results of the histological and histomorphological study on a dog in that was implanted a total cemented hip prothesis six years earlier. The prostheses utilized were the Richard II Type with a smooth long-necked steel stem and a polyethylene acetabular cap. Stem and acetabular cups were fixed using Polymetilmetacrilate (PMMA). Histopathological sections of membranes in the bone cement interface were colored with hematoxylin-eosin, according to well-known procedures The histological examination of left femur showed areas with plenty of giant plurinucleated macrophagal cells, containing translucent foreign bodies associated with polyethylene wear debris. Histomorphometric and microradiographic exams obtained from the right femur sections of the dog in the study and of a control femur of another German Shepard of the same age, size and sex showed a number of differences both in shape and microscopic structure with different levels of erosion cavities percentage, in the number of secondary newly-deposited osteons/mm2 and in the percentage area of eerosion surfaces in the endosteum. |
| Handle: | http://hdl.handle.net/11586/129495 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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