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Imaging of Adult Flat foot: Correlation of Radiographic Measurements With MRI
AJR Am J Roentgenol. 2015 Feb;204(2):354-9.
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¹æ»ç¼± ¿µ»ó¿¡¼ ¾òÀ» ¼ö ÀÖ´Â ÃøÁ¤°ª°ú MRI ¿µ»ó°ú ºñ±³ÇÏ¿© posterior tibial tendon (PTT)ÀÇ ¼Õ»ó À̳ª medial longitudinal archÀÇ ¾ÈÁ¤¼º ¼Õ»ó Á¤µµ¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´ÂÁö ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
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¹æ»ç¼± ÃÔ¿µ°ú MRI ÃÔ¿µ °£°ÝÀÌ 2´Þ À̳»·Î ½ÃÇàÇÑ 100¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÈÄÇâÀû ¿¬±¸¸¦ ½ÃÇàÇÏ¿´´Ù. ÀÓ»óÀûÀ¸·Î 31¸íÀÇ È¯ÀÚ¿¡¼ PTT dysfunctionÀ» °üÂûµÇ¾ú°í, 69¸íÀº ±âŸ ¹ß¸ñ°ü·Ã ÅëÁõÀ̾ú´Ù. foot AP ¿Í lateral view, ankle AP view¸¦ ÅëÇÏ¿© talonavicular uncoverage angle, incongruency angle, calcaneal pitch angle, Meary angle, cuneiform-to-fifth metatarsal height¸¦ ÃøÁ¤ÇÏ¿´´Ù (Fig 1). MRI °Ë»ç¸¦ ÅëÇÏ¿© PTTÀÇ À̻󿩺Π(tenosynovitis, tendinosis, and tear)¿Í medial longitudinal arch ±¸Á¶¹°(spring ligament, deltoid ligament, and sinus tarsi)ÀÇ ¾ÈÁ¤¼ºÀ» Æò°¡ÇÏ¿´´Ù.
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PTT tear°ú talonavicular uncorverage angle, calcaneal pitch angle, calcaneal pitch angle, Meary angle, and cuneiform-to-fifth metatarsal height °£¿¡ À¯ÀÇÇÑ »ó°ü¼ºÀÌ ÀÖ¾ú´Ù. ÇÏÁö¸¸ PTT tendinosis³ª isolated tenosynovitisÀÎ °æ¿ì¿¡´Â À¯ÀÇÇÑ »ó°ü¼ºÀ» ãÀ» ¼ö ¾ø¾ú´Ù (Table 1). calcaneal pitch angle °ú Meary angleÀÌ ¸ðµÎ Á¤»óÀÎ °æ¿ì¿¡´Â PTT tear°¡ ¾ø¾ú´Ù. calcaneal pitch angleÀÌ ºñÁ¤»óÀûÀÏ ¶§ medial longitudinal arch ±¸Á¶¹°ÀÇ ¾ÈÁ¤¼º ¼Õ»ó°ú °¡Àå ¹ÐÁ¢ÇÑ ¿¬°ü¼º ÀÖ¾ú´Ù.
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¹æ»ç¼± ¿µ»ó¿¡¼ calcaneal pitch angle °ú Meary angleÀÌ PTT tear¸¦ ¿¹ÃøÇϴµ¥ ƯÈ÷ À¯¿ëÇÏ´Ù. ¶ÇÇÑ calcaneal pitch angleÀº medial longitudinal arch ±¸Á¶¹°ÀÇ ¾ÈÁ¤¼º ¼Õ»óÀ» ´ëº¯ÇÏ´Â °¡Àå ´ëÇ¥ÀûÀÎ ÃøÁ¤°ªÀÌ´Ù.