Histopathological and radiological evaluation of a modified arthroplasty hip joint in rabbit

Subject Areas : Journal of Comparative Pathobiology

غلامرضا عابدی ¹ , احمد اصغری ² , رحیم علیزاده ³ , امیر سلمان باقری ⁴

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Received: 2012-08-23 Accepted : 2013-01-08 Published : 2013-02-19

Keywords: Coxofemoral Joint, Femur, Arthroplasty, Rabbit,

Abstract :

This procedure is a form of excision arthroplasty and has been used in small animal surgery forthe treatment of hip dysplasia, osteoarthritis, Legg-Calvé-Perthes disease, fractures of thefemoral head or acetabulum, coxofemoral luxation, and failed total hip replacement.The basis ofthe procedure is removal of the femoral head and neck to eliminate bone-to-bone contact and topermit the formation of a pseudarthrosis. The pseudarthrosis that results from this procedure iscomposed of dense fibrous connective tissue lined by a synovial membrane. The acetabularcavity is gradually replaced by bone. Ten white New Zealand male and healthy rabbits werechosen and divided in to 2 groups. Group I (control): Right side of leg was treated surgery andfemoral head and neck was removed with osteotom. Then the surgery area was closed in rot inpattern. Group II (test): Right side of leg was treated surgery and then superfacial gluteal muscleinsertion was extrication and after that the vastus lateralis muscle origin was parted and thenfixed insertion and origins of these two muscles between acetabulum and upper side of femur.Pathological and Necropsy evaluations in day 60 after surgery were done. The results of thisstudy showed Due to the anatomical position of the muscles of the hip, pelvis, insertion andorigin of superficial gluteal and Vastus lateralis muscles, if the muscle is placed in a newposition, they prevent adverse changes that occur in the hip.