Table 1.

Measured and calculated variables for the location of proposed injection sites for distal limb nerves (n = 20 limbs)

	Mean	Maximum	Minimum	Median	SD	CC
Common fibular nerve
(A) Distance from the fibular head (mm)	9.27	12.30	5.30	8.65	1.94	0.42*
(B) Distance from the fibular head to the lateral malleolus (mm)	93.30	97.50	88.90	93.85	2.92	0.43
(C) Length % (the ratio of A/B expressed as a %)	9.93	13.23	5.68	9.15	2.05	0.41
Deep fibular nerve
(D) Distance from the central tarsal bone (mm)	7.40	8.90	6.00	7.30	0.66	0.58*
(E) Width of the tarsus at the level of the central tarsal bone (mm)	16.89	18.30	15.70	16.80	0.84	0.25
(F) Length from the medial malleolus to the first metatarsal bone (mm)	24.28	26.60	21.50	24.35	1.63	−0.06
(G) Length from the central tarsal bone to the first metatarsal bone (mm)	12.57	13.65	11.50	12.60	0.69	−0.37
(H) Width % (the ratio of D/E expressed as a %)	43.86	51.25	37.74	43.81	3.82	0.44*
(I) Width % (the ratio of G/F expressed as a %)	51.84	55.41	47.06	51.86	2.42	−0.35
Superficial fibular nerve
(J) Distance from the central tarsal bone (mm)	8.78	10.30	7.70	8.75	0.54	−0.25
(K) Width % (the ratio of J/E expressed as a %)	52.09	63.98	46.93	51.62	4.03	−0.37
Tibial nerve
(L) Distance from the musculotendinous junction (mm)	6.74	8.30	4.60	7.00	0.98	0.04
(M) Distance from the tuber calcanei to the musculotendinous junction (mm)	28.93	32.20	26.60	28.30	1.91	0.24
(N) Distance from the medial malleolus to the medial condyle of the tibia (mm)	104.52	111.40	98.40	104.80	3.42	0.16
(O) Length % (the ratio of M/N expressed as a %)	27.69	31.02	25.48	27.02	1.83	0.16
Saphenous nerve
(P) Distance from medial malleolus (mm)	34.20	41.30	24.30	35.25	4.57	0.10
(Q) Length % (the ratio of P/N expressed as a %)	32.75	39.84	22.56	32.83	4.53	0.08

^*Significant correlation to body weight (P <0.05)

CC = correlation coefficient