Primary repair, or resection and anastomosis, should be considered for
treatment of all civilian patients with penetrating colon injuries. D
uring the past six years, 154 patients with colon injuries (excluding
rectal injuries) were treated in an urban trauma center. Primary repai
r, including resection and anastomosis, was performed in 102 patients
(66%) and diversion in 52 patients (34%). Injuries were graded accordi
ng to the Penetrating Abdominal Trauma Index (PATI)1 and Colon Organ I
njury Scale (CIS).2 The average PATI score for the primary repair grou
p was 22.1; the diversion group was 25.3. The majority of injuries as
graded by CIS for the primary repair group were grades 2 (27%) and 3 (
38%); the diversion group grades were 3 (31%) and 4 (46%). There was n
o significant difference between the two groups. There were 11 septic-
related complications in the diversion group and 10 septic-related com
plications in the primary repair group. Independent risk factors for a
dverse outcomes were compared in each group and used to calculate the
probability for adverse outcomes. The probability for adverse outcome
was significantly greater in the diversion group. Associated risk fact
ors were not useful in predicting an increase in morbidity and mortali
ty in either group. However, PATI had greater predictive value for det
ermining morbidity and mortality than did CIS. Primary repair or resec
tion and anastomosis should be considered for treatment of all penetra
ting colon injuries excluding rectal injuries.