摘要
目的应用螺旋CT扫描表面遮盖显示(SSD)和多平面重建术(MPR)诊断肩部复杂骨折。方法1996年5月～2001年12月共收治肩部复杂骨折24例,其中肱骨近端移位骨折16例,肩胛盂移位骨折8例。所有患者术前均拍摄X线片,15例同时行螺旋CT扫描及SSD和MPR,采用Neer分型法及改良Ideberg分型法对骨折进行分型。比较螺旋CT扫描SSD和MPR技术与传统X线片在肩部复杂骨折分型诊断中的正确率,并评价螺旋CT扫描SSD和MPR技术在肩部复杂骨折治疗方案选择中的指导作用。结果经手术证实,16例肱骨近端骨折中,Neer三部分骨折10例,四部分骨折6例;8例肩胛盂移位骨折中,Ⅲ型2例,Ⅳ型3例,Ⅴ型3例。螺旋CT扫描SSD和MPR技术诊断骨折分型正确率为93.3%(14/15),而X线片诊断分型正确率为41.7%(10/24),两者比较差异有显著性(Fisher精确概率法,P=0.02)。螺旋CT扫描SSD和MPR资料对治疗具有指导作用。结论螺旋CT扫描SSD和MPR能够在三维空间清晰地显示肩部复杂骨折的全部细节,有助于确定骨折分型,选择适当的治疗方案、手术入路和内固定方法,能帮助理解骨折的复杂性。
Objective To investigate the clinical value of spiral computerized tomographic shaded surface display (SSD) and multiplanar(MPR) imaging of complex shoulder fractures. Methods Twenty four cases of complex shoulder fractures including 16 cases with displaced proximal humeral fractures and 8 cases with displaced fractures of glenoid fossa were examined preoperatively with X ray, 15 cases of them were examined with SSD and MPR. On the basis of X ray or SSD and MPR of SCT all fractures were classified with Neer and modified Ideberg system; the true rate of fracture classification by use of two methods was compared with each other. Results Evidenced by intraperative observation, 10 of 16 displaced proximal humeral fractures cases were Neer three part fractures, 6 were four part fractures cases. Among the 8 cases of glenoid fossa fractures, there were 2 cases of type Ⅲ, 3 cases of type Ⅳ and 3 cases of type Ⅴ. The true rate of SSD and MPR of SCT is 93.3%(14/15) while X rays is 41.7%(10/24); there was significant difference between two methods (Fishers exact test, P=0.02). All SSD and MPR of SCT play an important role in the treatment of complex shoulder fractures. Conclusion SSD and MPR of SCT is able to clearly display complex shoulder fractures three dimensionally. It is helpful to correctly classify the fractures, select appropriate surgical approach, prepare surgical instruments and understand the complexity of the fractures.
出处
《中华骨科杂志》
CAS
CSCD
北大核心
2002年第11期666-670,共5页
Chinese Journal of Orthopaedics
