髁间嵴顶倾斜角：它是前交叉韧带撕裂或胫骨棘骨折的危险因素吗？
Intercondylar Roof Inclination Angle: Is It a Risk Factor for ACL Tears or Tibial Spine Fractures?
作者信息
Samora Walter, Beran Matthew C, Parikh Shital N
机构信息
*Department of Orthopedic Surgery, Nationwide Children's Hospital †Department of Orthopaedics, The Ohio State University, Columbus ‡Division of Orthopedic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
出版信息
J Pediatr Orthop. 2016 Sep;36(6):e71-4. doi: 10.1097/BPO.0000000000000631.
BACKGROUND
The relationship between the angle of inclination of the intercondylar roof [roof inclination angle (RIA)] and likelihood of knee injury has not been previously investigated in children.
METHODS
Twenty-five skeletally immature patients with a tibial spine fracture were age matched (±1 y) and sex matched with 25 patients with an anterior cruciate ligament (ACL) tear and with 50 control knees (2 for each patient). Demographic and diagnostic information was collected, and radiographic measurements were performed on notch and lateral radiographs of the knee.
RESULTS
Patients with a tibial spine fracture had an increased RIA compared with controls and patients with an ACL tear. Patients with ACL tears had a steeper notch roof, as indicated by a decreased RIA when compared with controls and patients with tibial spine fractures.
CONCLUSIONS
Our results demonstrated that a decreased RIA was associated with ACL tear and that an increased RIA was associated with tibial spine fracture.
LEVEL OF EVIDENCE
Level III-prognostic.
背景
髁间顶倾斜角度[髁间顶倾斜角（RIA）]与儿童膝关节损伤可能性之间的关系此前尚未得到研究。
方法
25例骨骼未成熟的胫骨棘骨折患者与25例前交叉韧带（ACL）撕裂患者及50个对照膝关节（每名患者2个）进行年龄匹配（±1岁）和性别匹配。收集人口统计学和诊断信息，并对膝关节的切迹和侧位X线片进行影像学测量。
结果
与对照组和ACL撕裂患者相比，胫骨棘骨折患者的RIA增加。与对照组和胫骨棘骨折患者相比，ACL撕裂患者的切迹顶更陡峭，表现为RIA降低。
结论
我们的结果表明，RIA降低与ACL撕裂相关，而RIA增加与胫骨棘骨折相关。
证据水平
III级-预后性。
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