BioMed Research International

Review Article

Minimally Invasive Percutaneous Nephrolithotomy versus Retrograde Intrarenal Surgery for Upper Urinary Stones: A Systematic Review and Meta-Analysis

Table 2

Characters of patients and calculus.


Study	Treatment	Age (year)	Male/Female	BMI (kg/m²)	Stone size (mm)	Stone location (%)
Study	Treatment	Age (year)	Male/Female	BMI (kg/m²)	Stone size (mm)	Upper pole	Middle pole	Lower pole	Renal pelvis	Proximal ureter	Multiple

Lee et al. [11]	Mini-PCNL		28/7			2.9	—	40.0	17.1	—	40.0
Lee et al. [11]	RIRS		28/5			3.0	—	30.3	27.3	—	39.4
Ozgor et al. [12]	Mini-PCNL		25/31			8.9	1.8	26.8	25.0	—	37.5
Ozgor et al. [12]	RIRS		22/34			7.1	1.8	26.8	39.3	—	25.0
Wilhelm et al. [13]	Mini-PCNL	51.56 (15–75)	15/10	29.54 (18.75–42.94)	19.3 (10–35)	—	—	—	—	—	—
Wilhelm et al. [13]	RIRS	51.36 (19–77)	19/6	28.41 (18.4–38.57)	19.2 (10–35)	—	—	—	—	—	—
Pan et al. [14]	Mini-PCNL		37/22			8.5	18.6	52.5	20.3	—	—
Pan et al. [14]	RIRS		36/20			12.5	12.5	51.8	23.2	—	—
Kirac et al. [15]	Mini-PCNL		25/12			—	—	100	—	—	—
Kirac et al. [15]	RIRS		22/14			—	—	100	—	—	—
Kumar et al. [16]	Mini-PCNL		20/21			—	—	—	—	—	—
Kumar et al. [16]	RIRS		20/23			—	—	—	—	—	—
Sabnis et al. [17]	Mini-PCNL		19/13	—		3.1	0.0	31.3	43.8	—	21.9
Sabnis et al. [17]	RIRS		25/7	—		9.4	3.1	28.1	25.0	—	34.4
Kruck et al. [18]	Mini-PCNL		109/63	—		—	—	42.7	—	—	—
Kruck et al. [18]	RIRS		69/39	—		—	—	76.8	—	—	—
Hu et al. [19]	Mini-PCNL		56/48			1.9	7.7	13.5	40.4	36.5	59.6
Hu et al. [19]	RIRS		45/35			3.8	12.5	17.5	37.5	28.8	57.5
Zeng et al. [20]	Mini-PCNL		36/17			3.8	3.8	22.6	22.6	—	47.2
Zeng et al. [20]	RIRS		39/14			5.7	3.8	18.9	26.4	—	45.3
Zhang et al. [21]	Mini-PCNL		24/8	—		—	—	—	—	100	—
Zhang et al. [21]	RIRS		29/15	—		—	—	—	—	100	—
Gu et al. [22]	Mini-PCNL		—	—	17.27 (15–25)	—	—	—	—	100	—
Gu et al. [22]	RIRS		—	—	16.23 (15–25)	—	—	—	—	100	—
Knoll et al. [23]	Mini-PCNL		15/10			4.0	68.0	12.0	56.0	—	—
Knoll et al. [23]	RIRS		9/12			9.5	66.7	4.8	38.1	—	—

Note. Mini-PCNL = minimally invasive percutaneous nephrolithotomy; RIRS = retrograde intrarenal surgery; Unit = mm²; all other units are in millimeters.