Crush extremity fractures associated with the 2008 Sichuan earthquake: anatomic sites, numbers and statuses evaluated with digital radiography and multidetector computed tomography.
OBJECTIVE
To investigate features of crush extremity fractures associated with massive earthquake on digital radiography (DR) and multidetector computed tomography (MDCT).


METHODS
Six hundred and twenty-three consecutive patients with clinically confirmed crush extremity fractures arising from the 2008 Sichuan earthquake were enrolled into our study. Six hundred and eleven patients with suggested extremity fractures underwent DR, and 12 patients with possible knee fractures underwent MDCT. Image data were retrospectively reviewed, with the focus on anatomic sites, numbers, and status of the fractures.


RESULTS
Extremity fractures occurred in lower extremities in 428 patients, upper extremities in 151, and both lower and upper extremities in 44. Lower extremity fractures were more common than upper extremity fractures (P < 0.05), and the commonly involved bones were the tibia and fibula in 141 patients, femur in 102, tibia in 52, and fibula in 40. According to the numbers of bones involved, multiple bone fractures occurred in 336 patients and included lower extremity fractures in 231, upper extremity fractures in 61, and both lower and upper fractures in 44. Multiple fractures in lower extremities were seen more often than in upper extremities (P < 0.05). As for status of the extremity fractures, comminuted fractures occurred in 324 patients and included lower extremity fractures in 248, upper extremity fractures in 51, and both lower and upper extremity fractures in 25. Comminuted fractures were more common in lower extremities than in upper extremities (P < 0.05).


CONCLUSIONS
Multiple and comminuted fractures, predominantly in the lower extremities, could be considered as features of crush extremity fractures associated with the massive Sichuan earthquake.
Chen
Tian-wu
TW
Department of Radiology, West China Hospital of Sichuan University, Sichuan, China.
Yang
Zhi-gang
ZG
Wang
Qi-ling
QL
Dong
Zhi-hui
ZH
Yu
Jian-qun
JQ
Zhuang
Zhang-pu
ZP
Hou
Chang-ling
CL
Li
Zhen-lin
ZL
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D004190:Disasters / Q000706:statistics & numerical data*; D055866:Earthquakes / Q000706:statistics & numerical data*; D005121:Extremities / Q000000981:diagnostic imaging / Q000293:injuries*; D005260:Female; D050815:Fractures, Compression / Q000000981:diagnostic imaging* / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D007869:Leg Injuries / Q000000981:diagnostic imaging* / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011856:Radiographic Image Enhancement; D014057:Tomography, X-Ray Computed / Q000706:statistics & numerical data*; D055815:Young Adult