대퇴골두와 비구의 해부학적 상관관계를 이용한 대퇴골두의 크기 계측에 관한 연구 = A Study on the Roentgenographic Measurement of the Size of the Femoral Head Using the Anatomical Relationship between the Femoral Head and the Acetabulum

다국어 초록 (Multilingual Abstract)

Because there is no exact basis in determining the size of the prosthetic head in cases when the femoral head is severely deformed, anteroposterior roentgenogram of the pelvis and C.A. T. can serve as useful methods in determining the actual size of the prosthetic head to be insjited during its operation. The medial joint space, the superior joint space, and the axial joint space measurement were observed in 122 cases of normal anteroposterior pelvic roentgenogram for the purpose of this study at the Department of Orthopaedic Surgery, Hanyang CJniversity College of Medicine between October, 1987 and March, 1989. In cases where there is a severe deformity of thd femoral head in the hip joint, particularly in the bilateral hip joint, the size of the femoral head can be determined as long as the acetabulum remains in a near normal condition. This is done by obtaining any three points located within 1/4 of the circumference of the acetabulum. Once these three points are determined, the actual size of the femoral head is then derived by converting the previous magnified measurement of the circle diameter into an actual measurement. The analysis of the comparison between the size of the femoral head using a pelvic roentge- nogram and the size of the inserted prosthetic head after the hip joint arthroplasty proved this method to be significantly reliable. Also in cases where disease is located in the unilateral hip joint, the result of comparison bet- ween the size of the normal side of the femoral head measured through C.A.T. and the size of the inserted prosthetic head after the hip joint arthroplasty also showed this method to be sign-ificantly reliable.