Robotic surgery for rectal cancer: A systematic review of current practice

Table 3 Oncological outcomes

Ref.	No. of patients		Mean follow-up (mths)		NeoCRT (%)		Lymph nodes harvested (mean)		TME grade complete (%)		CRM +ve (%)		DRM (cm)		Robotic Recurrence (%)	3 yr Robotic Survival (%)
	Rob	Lap	Rob	Lap	Rob	Lap	Rob	Lap	Rob	Lap	Rob	Lap	Rob	Lap		DS	OS
Baik et al[24]	56	57	14.3 (both)		8.9	12.2	18.4	18.7	92.9	75.4	7.1	8.8	4.0	3.6	-	-	7.6
Ng et al[40]	8	NA	1.5	NA	-	-	12.9	NA	-	-	0	NA	> 2.0	NA	-	-	NA
Patriti et al[37]	29	37	29.2	18.7	24.1	5.4	10.3	11.2	-	-	0	0	2.1	4.5	None	100.0	9.6
Bianchi et al[38]	25	25	10.0 (both)		52.0	40.0	19.7	18.2	-	-	0	4.0	2.0	2.0	None	-	6.0
Pigazzi et al[32]	143	NA	17.4	NA	65.1	-	14.1	NA	-	-	0.7	NA	2.9	NA	1.5	77.6	NA
Zimmern et al[33]	58	NA	13.2	NA	39.7	NA	14.1	NA	-	-	0	NA	-	-	5.2	-	NA
Baek et al[34]	41	41	-	-	80.5	43.9	13.1	16.2	-	-	2.4	4.9	3.6	3.8	-	-	6.6
Koh et al[41]	20	NA	-	-	9.5	NA	17.8	NA	-	-	5.3	-	3.7	-	-	-	NA
Kwak et al[25]	59	60	17.0	13.0	13.6	8.5	20.0	21.0	-	-	1.7	0	-	-	-	-	-
Leong et al[26]	29	NA	-	-	37.9	NA	16.0	NA	-	-	7.0	NA	0.8	NA	-	-	NA
Park et al[27]	52	123	-	-	23.1	8.1	19.4	15.9	-	-	1.9	2.4	2.8	3.2	-	-	9.8
Kim et al[28]	100	NA	24.0	NA	32.0	NA	20.0	NA	-	-	1.0	NA	2.7	NA	-	-	NA
Park et al[35]	30	NA	-	-	66.7	NA	20.0	NA	83.3	NA	0	NA	-	-	-	-	NA
Shin et al[29]	17	12	-	-	-	-	18.42	15.92	-	-	-	-	-	-	-	-	9.6
Erguner et al[42]	27	37	-	-	14.8	21.6	16.0	16.0	100.0	70.6	0	0	4.0	4.0	-	-	5.0
Kang et al[30]	165	165	22.41 (both)		23.6	21.8	15.0	15.6	-	-	4.2	6.7	1.9	2.0	-	-	-
Park et al[31]	40	40	6.0	6.0	80.0	50	12.9	13.3	-	-	7.5	5.0	1.4	1.3	-	-	-
Stanciulea et al[43]	100	NA	24.01	NA	58.0	NA	14.01	NA	-	-	1.0	-	3.0	-	2.0	NA	90.0
D’Annibale et al[39]	50	50	12.0	12.0	68.0	56.0	16.5	13.8	-	-	0	0	3.0	3.0	-	-	-
Fernandez et al[36]	13	59	-	-	77.0	54.0	16.0	20.0	69.0	73.0	0	2.0	-	-	-	-	-

¹Median;

²Overall figures for colorectal resections (not just rectal). Rob: Robotic-assisted surgery; Lap: Conventional laparoscopic surgery; NeoCRT: Neoadjuvant chemoradiotherapy; TME: Total mesorectal excision; CRM: Circumferential resection margin; DRM: Distal resection margin; DS: Disease free survival; NA: Not available.