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Correlation between Femoral Tunnel Location in Three-Dimensional Computed Tomography and Femoral Tunnel Angle in Plain Radiographs after Single-Bundle Anterior Cruciate Reconstruction
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Abstract
¸ñ Àû: ´Ü¼ø ¹æ»ç¼± »çÁø¿¡¼ ´ëÅð°ñ ÅͳΠ±â¿ï±â¿Í 3Â÷¿ø ÄÄÇ»ÅÍ ´ÜÃþ ÃÔ¿µ(three-dimensional computed tomography, 3D-CT)ÀÇ ´ëÅð°ñ ÅͳΠÀ§Ä¡ÀÇ »ó°ü°ü°è¸¦ ¾Ë¾Æº¸°íÀÚ ÇÑ´Ù.
´ë»ó ¹× ¹æ¹ý: 2009³âºÎÅÍ 2011³â±îÁö ½ÃÇàÇÑ Àü¹æ½ÊÀÚÀδë Àç°Ç¼ú ÈÄ 3D-CT ÃÔ¿µÀ» ½ÃÇàÇÑ 42¿¹¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. ÀüÈÄ¹æ ¹× Rosenberg »çÁø¿¡¼ ´ëÅð°ñÀÇ ÇغÎÇÐÀû ÃàÀ» ±âÁØÀ¸·Î ´ëÅð°ñ ÅͳΠ±â¿ï±â¸¦ ÃøÁ¤ÇÏ¿´°í 3D-CT¿¡¼ ´ëÅð°ñ ÅͳΠÀ§Ä¡¸¦ Ç¥½ÃÇÏ¿© ÃøÁ¤°ª °£ÀÇ ¿¬°ü¼ºÀ» ºÐ¼®ÇÏ¿´´Ù.
°á °ú: ÀüÈÄ¹æ ¹æ»ç¼± »çÁø¿¡¼ ´ëÅð°ñ ÅͳΠ±â¿ï±â´Â 41.5o¡¾6.8o, Rosenberg »çÁø¿¡¼´Â 34.9o¡¾6.9o¿´´Ù. 3D-CT ¿µ»ó¿¡¼ ´ëÅð°ñ ÅͳΠÀ§Ä¡´Â ÈĹ濡¼ 36.9%¡¾11.3%, ±ÙÀ§¿¡¼ 38.1%¡¾6.5%¿´´Ù. ´ëÅð°ñ ÅͳΠ±â¿ï±â¿Í À§Ä¡´Â ÀüÈÄ¹æ ¹æ»ç¼± »çÁø¿¡¼ À½ÀÇ »ó°ü°ü°è(p£¼0.001, rho=-0.498), Rosenberg »çÁø¿¡¼µµ À½ÀÇ »ó°ü°ü°è(p=0.006, rho=-0.416)¸¦ º¸¿´´Ù.
°á ·Ð: ÀüÈÄ¹æ ¹æ»ç¼± ¹× Rosenberg »çÁø¿¡¼ ´ëÅð°ñ ÅͳΠ±â¿ï±â´Â 3D-CT ¿µ»ó¿¡¼ÀÇ ´ëÅð°ñ ÅͳΠÀ§Ä¡¿Í ³ôÀº ¿¬°ü¼ºÀ» º¸¿´°í, ÇغÎÇÐÀû ¹üÀ§ ³»¿¡ ´ëÅð°ñ ÅͳÎÀÌ À§Ä¡ÇÑ ±º¿¡¼ °ü»ó¸é»ó ´ëÅð°ñ ÅͳΠ±â¿ï±â°¡ »ó´ëÀûÀ¸·Î Áõ°¡ÇÏ¿´´Ù.
Purpose: The purpose of this study is to determine correlation between femoral tunnel angle in the coronal plane on a simple radiograph and femoral tunnel location in the sagittal plane on three-dimensional computed tomography (3D-CT).
Materials and Methods: The subjects included 42 patients who underwent 3D-CT after the operation out of 70 cases of anterior cruciate ligament reconstruction using quadriceps tendon-patelllar bone autograft from April, 2009 to June, 2011. Measurement of the femoral tunnel angle was based on the anatomical axis of the femur in antero-posterior (AP) and Rosenberg views; femoral tunnel location was described as a proportional percentage on the medial surface of the lateral femoral condyle in the 3D-CT image; then the correlation between femoral tunnel angle and femoral tunnel location was analyzed retrospectively.
Results: Femoral tunnel angle was 41.5¡Æ¡¾6.8¡Æ (range: 29.7¡Æ-53.9¡Æ) on AP radiographs, and 34.9¡Æ¡¾6.9¡Æ (range: 23.8¡Æ-46.5¡Æ) on Rosenberg views. The femoral tunnel was located 36.9%¡¾11.3% from posterior, and 38.1%¡¾6.5% from proximal on the 3D-CT image. On plain AP radiographs, femoral tunnel angle and femoral tunnel location showed negative correlation (p<0.001, rho=-0.498), and, in comparison with Rosenberg view, they showed negative correlation (p=0.006, rho=-0.416). Twenty three patients (53.5%) had femoral tunnel in the anatomical location. Their femoral tunnel angle on AP radiographs was 43.3¡Æ¡¾6.1¡Æ, while the femoral tunnel angle of patients who had femoral tunnel in non-anatomical locations was 38.4¡Æ¡¾6.4¡Æ (p=0.004). In the Rosenberg picture, similar difference was observed between the two groups (p=0.012).
Conclusion: On AP radiographs and Rosenberg views, femoral tunnel angle showed significant correlation with the femoral tunnel location on the 3D-CT image, and the group who had femoral tunnel location in the anatomical range showed a relatively higher femoral tunnel angle.
Å°¿öµå
Àü¹æ½ÊÀÚÀδë Àç°Ç¼ú, ´ëÅð°ñ ÅͳΠ±â¿ï±â, ´ëÅð°ñ ÅͳΠÀ§Ä¡, 3Â÷¿ø ÄÄÇ»ÅÍ ´ÜÃþÃÔ¿µ
anterior cruciate ligament reconstruction, femoral tunnel angle, femoral tunnel location, three-dimensional computed tomography
KMID :
0361620140490010043
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