The free flap based on a single proximal perforator of the radial artery: ultrasonography study and clinical applications in reconstruction of soft tissue defects in finger

Table 1 Location and ultrasonography findings of the radial artery perforator in the proximal forearm.(n = 20)

No.	Sex	Age	Side	Diameter (mm)	Pedicle length (mm)	D_p/D_E–W (cm)	Perforator location (%)
1	Male	36	L	0.6	15	7.7/23.4	32.9
1	Male	36	R	0.7	15	9.0/23.5	38.3
2	Male	28	L	0.5	15	9.3/26.4	35.2
2	Male	28	R	0.5	20	10.8/25.1	43.0
3	Female	33	L	0.5	14	9.8/23.4	41.9
3	Female	33	R	0.5	13	6.7/23.5	28.5
4	Male	29	L	0.5	11	9.6/24.6	39.0
4	Male	29	R	0.8	14	8.5/24.4	34.8
5	Female	23	L	0.8	7	7.7/22.7	33.9
5	Female	23	R	0.6	14	8.6/22.8	37.7
6	Female	49	L	0.6	13	9.9/22.7	43.6
6	Female	49	R	0.8	10	8.3/22.7	36.6
7	Male	26	L	0.8	14	10.0/25.0	40.0
7	Male	26	R	0.9	15	9.3/23.9	38.9
8	Female	42	L	0.8	9	9.6/24.3	39.5%
8	Female	42	R	0.8	9	7.7/23.6	32.6
9	Male	24	L	0.7	11	11.1/25.0	44.4
9	Male	24	R	0.8	11	9.8/24.5	40.0
10	Female	34	L	0.7	5	5.6/21.1	26.5
10	Female	34	R	0.5	10	7.4/20.8	35.6
AVE (x ± s)		32 ± 8	–	0.7 ± 0.1	12 ± 3	8.8 ± 1.4/23.7 ± 1.3	37.2 ± 4.8

Diameter: the internal diameter of the perforator vessel of radial artery measured by e ultrasonography. Pedicle length: the pedicle distance from its origination of radial artery to deep fascia by ultrasonography. Perforator Location = D_p/D_E–W × 100%: the relative distance of the perforator location beyond the elbow crease
D_p: the distance from location of the perforator to the elbow crease; D_E–W: the distance from the elbow crease to the wrist crease

ISSN: 2047-783X