Table 2.

Technical details of the procedures for single-incision laparoscopic appendectomy (SILA) and conventional three-port laparoscopic appendectomy (CLA)

References	SILA trocar [skin incision length]	Type of instrument for SILA	CLA ports	Stump sealing (CLA and SILA)	Mesoappendix division (CLA and SILA)
Shalaby et al. [12]	Home-made latex surgical glove single port [18 mm]	Dedicated	5 mm trans umbilical 3 mm right upper quadrant 5 mm left lower quadrant	Two home-made endoloops 2/0 vicryl	Monopolar electrocautery
Zahara et al. [13]	Multi- channel port [NR]	Conventional	10 mm intra-umbilical 10 mm port left iliac fossa 5 mm hypogastrium	Endoloop	Diathermy
Duza et al. [14]	One 10 mm port and one 5 mm port (in 31 cases homemade latex gloves,in 6 GelPOINT Mini (Applied Medical), 2 SILS™ Port (Medtronic), in 36 no device) [NR]	Conventional	10 mm umbilical 10 mm soprapubic 5 mm left iliac fossa	Polyglactin suture	Monopolar electrocautery
Golebiewski et al. [20]	SILSPort™ [30 mm]	Dedicated	5 mm umbilical 5 mm soprapubic 5 mm left lower quadrant	Endoloop	Monopolar cautery
Moriguchi et al. [15]	EZ Access port (Hakko) + 2.4 mm percutaneous insertion grasper (MiniLap; Teleflex, Morrisville, NC) placed using puncture technique at the suprapubic region [15 mm]	Dedicated	12 mm umbilical 5 mm left lower abdomen 5 mm suprapubic	Endoloop	Ultrasonically activated device
Mo Kang et al. [21]	Homemade glove port (50 procedures), Octoport® (dalimSurgNET Inc. Seoul, Korea) (40 procedures) [15–30 mm]	Dedicated	10 mm supra/infraumbilical 5 mm left lower quadrant 5 mm suprapubic	NR	NR
Alexander et al. [22]	NR
Kai Wu et al. [29]	Use of CLA equipment: 3 ports of 5 mm periumbical, later 2 changed to 10 or 12 mm [10 mm, 5 mm]	Conventional	10 or 12 mm umbilical 5 mm left mid abdomen 5 mm left suprapubic	Endoloop	Ultrasonic scalpel
Carter et al. [23]	SILS Port, Covidien [30 mm]	Conventional	12 mm umbilical 5 mm left lower quadrant 5 mm suprapubic midline	Linear stapler or looped suture	Cutting-and-sealing device
Mori et al. [24]	SILS Port, Covidien [25–30 mm]	Dedicated	Hasson Trocar periumbilical 5 mm left iliac fossa 11 mm soprapubic	Endoloop, Endograsp	Endoclip
Frutos et al. [4]	SILS port (Covidien, Mansfield, Massachusetts, USA) [20 mm]	Dedicated	11 mm umbilical 12 mm lower left quadrant 5 mm right upper quadrant	Endoloop	Endostapler
Kye et al. [26]	Home-made glove port [20 mm]	Conventional	10 mm umbilical 5 mm suprapubic 5 mm left lower quadrant	Endoloop	Ultrasonic shears
Lee et al. [28]	Octoport (Dalim,Seoul,Korea) [15 mm]	Conventional	10 mm umbilical 5 mm soprapubic 5 mm left lower quadrant	Endoloop	Ultrasonic shears
Pan et al. [16]	5 mm and 10 mm trocar [15 mm]	Conventional	10 mm umbilical 10 mm right abdomen 5 mm suprapubic	Absorbable ligating clip cartridge	Ultrasound knife
Perez et al. [17]	Triangular orientation at the umbilicus: one 5 mm middle port, two 5 mm lateral ports, later one changed to 12 mm [NR]	Dedicated	NR	NR	Stapler
Scarless et al. [19]	Multi- channel port [NR]	Conventional	10–12 mm intra/supraumbilical 5 or 10 mm left iliac fossa 5 mm hypogastrium	NR	NR
Sozutek et al. [25]	SILS port (Covidien, Mansfield, Massachusetts, USA) [20 mm]	Conventional	10 mm umbilical 5 mm right lower quadrant 5 mm soprapubic	Polypropylene suture	Ultrasonic shears
Teoh et al. [27]	Multiple fascial inserction (two 5 mm ports and one 10 mm port) [13 mm]	Dedicated and conventional	10 mm umbilical 5 mm left lower quadrant 5 mm right lower quadrant	Endoloop	Ultrasonic shears
Villalonga et al. [18]	TriPort (Advanced Surgical Concepts, Wicklow, Ireland) and SILS Port [15–20 mm]	Dedicated	NR	Endoloops	NR
St. Peter et al. [33]	NR [10–20 mm]	Dedicated	12 mm port transumbilical 5 mm left lower quadrant 5 mm suprapubic region	NR	NR
Park et al. [31]	Surgical glove port attached using 3 trocars fixed to the outer ring of a wound retractor [NR]	Dedicated	two 5 mm trocars and a 10 mm trocar	Endoloop	Scalpels or endoclips

NR, not recorded; SILA, single-incision laparoscopic surgery; CLA, conventional three-port laparoscopic appendectomy