Study on the causes of local recurrence of rectal cancer after curative resection: analysis of 213 cases

Table 1 Pathological types and local recurrence

Pathological types	Number	Local recurrence (%)
Tubular adenocarcinoma	121	40 (33.06)
Papillary adenocarcinom	33	11 (33.33)
Mucinous adenocarcinoma	30	12 (40.00)
Villous adenocarcinocna	10	3 (30.00)
Undifferentiated carcinoma	10	4 (40.00)
Signet-ring-cell carcinoma	9	3 (33.33)
Total	213	73 (34.27)

Table 2 Operational methods and local recurrence

Operationa methods	Number	Local recurrence (%)
Miles	108	40 (37.01)
Dixon	86	27 (31.40)
Bacon	19	6 (31.58)
Total	213	73 (34.27)

Table 3 Distal resection margin in Dixon operation and anastomotic recurrence

Length of distal resection margin	Number	Anastomotic recurrences (%)
< 3 cm	26	11 (42.31)
≥ 3 cm	60	10 (16.67)a
Total	86	21 (24.42)

^aP < 0.05 vs < 3 cm margin group.

Table 4 Dukes’ stages and local recurrence

Dukes’ stage	Number	Local recurrence (%)
A	50	6 (12.00)
B	88	30 (34.09)a
C	75	37 (49.33)ab
Total	213	73 (34.27)

^aP < 0.01, stage A vs stage B, stage A vs stage C,

^bP < 0.05, stage B vs stage C.

Table 5 Primary tumor sites and local recurrence

Primary tumor sites	Number	Local recurrence (%)
Upper rectum	28	5 (17.86)
Middle rectum	52	21 (40.38)a
Lower rectum	133	47 (37.59)
Total	213	73 (34.27)

^aP < 0.05, vs middle rectum.