Table 1.
Characteristics of included studies
| First author | Country of origin | Year of publication | Study period | Study design | Type of disease | Number of patients (HALS/OS) | Gender (M:F) HALS/OS |
BMI (mean, kg/m2) HALS/OS |
Hand port placement | Tumour staging (HALS/OS) | Follow-up (months) HALS/OS |
Conversion cases | Quality assessment | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MINORS | CONSORT | ||||||||||||||
| Sheng 2012 [6] | China | 2012 | August 2009 to December 2010 | RCT, single centre | Right colon cancer | 116 (59/57) | 32:27/35:22 | 21.7/22.2 | 6 cm mid line incision around the umbilicus |
AJCC I II III IV |
7/11 25/24 27/22 0/0 |
13.3 | 0 | – | 16/25 |
| Chung [17] | China | 2007 | June 2001 to May 2006 | RCT, single centre | Right colon cancer | 81 (41/40) | 25:16/26:14 | 22/22.8 | 6.5 cm infra-umbilical midline incision |
DUKES A B C D |
4/5 21/16 15/18 1/1 |
30/28 | 3 (7.3%) | – | 18/25 |
| Li [16] | China | 2015 | January 2011 to June 2013 | Retrospective, single centre | Obstructive right colon cancer | 35 (10/25) | 6:4/14:11 | 22.2/22.3 | 5.5 cm mid line incision around the umbilicus |
TNM I II III IV |
0/0 2/9 8/16 0/0 |
NR | 0 | 21/24 | – |
| Wei [11] | China | 2018 | June 2009 to December 2014 | Retrospective, single centre | Right colon cancer | 45 (19/26) | 9:10/18:8 | 22.9/21.4 | 5–7 cm mid line incision around the umbilicus |
TNM I II III |
1/1 12/15 6/10 |
60/60 | NR | 19/24 | – |
| Sim [15] | Korea | 2013 | January 2009 to September 2010 | PNR, single centre | Right colon cancer | 49 (16/33) | 9:7/18:15 | 22.9/23.8 | 6–7 cm mid line incision around the umbilicus |
TNM I II III |
9/8 3/14 4/9 |
NR | 0 | 20/24 | – |
| Sheng [13] | China | 2017 | May 2012 to April 2014 | Retrospective, single centre | Right colon cancer* | 150 (78/72) | 43:35/40:32 | 21.7/21.7 | 6 cm mid line incision around the umbilicus |
TNM I II III |
9/11 35/30 34/31 |
19.8/20 | 0 | 19/24 | – |
| Chi P [12] | China | 2005 | November 2001 to September 2004 | Retrospective, single centre | Right colon cancer | 30 (15/15) | 6:9/8:7 | NR | NR | NR | NR | 0 | 18/24 | – | |
HALS hand-assisted laparoscopic surgery, OS open surgery, RCT randomized clinical trials, PNR prospective non-randomized, NR not reported
*Complete mesocolon excision was performed