복시가 동반된 안와골절환자에서 안와 전산화단층촬영 소견에 따른 수술 후 복시 회복기간 예측
Using Computed Tomography: Predictive Factors for Recovery Time in Patients with Orbital Fracture with Diplopia
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목적: 복시가 동반된 안와골절환자에서 수술 전후 안와 전산화단층촬영(computed tomography, CT) 소견과 수술 후 복시 회복기간을 분석하여 복시 회복기간 예측관련인자를 알아보고자 한다. 대상과 방법: 본원에서 2006년 3월-2015년 12월까지 복시가 동반된 안와골절환자 중 수술적 치료를 시행 후 최소 12개월간 경과관찰한 379명, 379안에 대해 수술 전 CT 소견인 골절 크기, 골절 종류, 골절 위치, 근육의 손상 종류, 연조직 탈출, 근육의 부종, 술 후 6개월 이후 촬영한 CT에서 안구함몰 수치, 그 외 나이, 성별, 발생 원인 등에 따른 복시 회복기간을 후향적으로 분석하였다. 결과: 수술 후 평균 경과관찰기간은 556.2 ± 59.5일이었으며, 복시 회복기간은 평균 23.9 ± 42.5일(3-186)이었다. 수술 전 CT 소견중 골절 크기(소, 중<대[p=0.049]), 골절 종류(선상골절<경첩골절<분쇄골절, 들창문형골절[p<0.01]), 골절 위치(하벽<내벽, 내벽과 하벽[p<0.01]), 외안근의 손상(뒤틀림과 탈출 동반, 골절 경계 부위에 꺾인 경우, 외안근의 감돈[p<0.01]), 연조직 탈출(소, 중<대[p<0.001])일 경우 복시 회복기간이 유의하게 증가하였다. 외안근의 부종, 손상기전, 성별, 나이, 안구함몰 정도는 복시 회복기간에 유의한 영향을 주지 않았다. 결론: 본 연구를 통하여 술 전후 CT의 영상학적 요인이 복시 회복기간을 예측할 수 있는 인자임을 확인하였다. 실제 임상에서 수상 시 촬영한 CT 소견으로 복시기간을 예측하는 데 유용할 것으로 기대된다.
Abstract
Purpose: To identify predictive factors for recovery time in patients with orbital fracture with diplopia through analysis of preoperative and postoperative computed tomography (CT) images and postoperative recovery time. Methods: We retrospectively analyzed CT findings-preoperative: fracture size, type of fracture, fracture site, extraocular muscle (EOM) swelling, EOM and soft tissue injury, and the amount of soft tissue herniation; post-operative: degree of enophthalmos, and diplopia recovery period in 379 patients who underwent surgical treatment for orbital fracture between March 2006 and December 2015. Results: The average postoperative follow-up period was 556.2 ± 59.5 days, and the mean duration of recovery was 23.9 ± 42.5 (range, 3-186) days. The recovery time of diplopia was significantly increased with the following preoperative CT findings: fracture size (small and medium < large) (p = 0.049), type of fracture (linear < hinge < comminuted, trap-door) (p < 0.01), fracture site (inferior < medial and both) (p < 0.01), EOM and soft tissue injury (prolapse and torsion, muscle entrapment, kinked muscle) (p < 0.01), and the amount of soft tissue herniation (small and medium < large) (p < 0.001). The mechanism of injury, sex, age, and the degree of enophthalmos were not related to the length of the diplopia recovery period. Conclusions: The length of diplopia recovery could be predicted by CT findings.
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