대퇴골 경부의 Herniation Pit: 발생빈도 및 방사선학적 소견

Abstract

PURPOSE: In order to assess the incindence and radilogic findings of herniation pit of lthe frmur neck inKorean. MATERIALS AND METHODS: in 152 macerated femurs of 99 cadavers, and randomly selected 115 hips of 70patients, the presence of herniation pit was determined by using fluoroscopy and radiography. It was then examinedby CT for inspection of overlying surface and its opening was confirmed by inserting thin steal wire under thefluorocopic guidance. RESULTS: Seventeen herniation pits in 15 macerated femurs of 13 cadavers were noted.(14.8%,13/88). Two of 13 individuals showed bilaterality. All lesions were found only in males. Six herniation pit in 6femurs of 6 patients(8.6%,6/70) were also noted, All lesions were on anterosuperior aspect of femur neck. Plainradiographs of macerated femurs revealed well marginated and thin sclerosis in 15 lesions. Of all 23 lesions, CTshowed cortical breakdown in 3, and overlying cortical thickening in 8. In 15 maceratd femurs, roughed area ofcortex was found in anterosuperior aspect of femur in all cases, and tiny openings(diameter less than 1 mm)related to cystic lesions were confirmed in 9 lesions. CONCLUSION: The incidence of herniation pits was 14.8% in88 cadaver, and 8.6% in 70 patients. All were males.