Femoral nerve palsy following Girdlestone resection arthroplasty: An observational cadaveric study

Table 1 Femoral displacement after Girdlestone resection arthroplasty

Specimen	Vertical shift in mm	Dorsal dislocation in mm	External rotation
11	42	18	35
12	38	15	40
21	32	20	28
22	36	18	37
31	49	21	28
32	39	22	40
41	37	13	45
42	34	15	39
Average	38.4	17.8	36.5

¹Left hip.

²Right hip.

Table 2 Migration of femoral nerve entry points

Specimen	Lateral division				Medial division		Axial stress, n
	Rectus femoris	VL	TVI	VI (lat)	VI (med)	VM
11	23	37	36	16	2	4	98
12	27	33	30	17	4	6	97
21	19	28	26	19	5	3	107
22	24	30	31	20	6	7	101
31	30	32	40	21	6	4	96
32	22	24	28	14	7	4	100
41	17	19	24	12	8	8	88
42	23	27	31	13	5	6	95
Average	23.1	28.8	30.8	16.5	5.4	5.3	97.75

¹Left hip.

²Right hip.

Data are presented in mm. TVI: Tensor vastus intermedius; VI (lat): Lateral area of the vastus intermedius; VI (med): Medial area of the vastus intermedius; VL: Vastus lateralis; VM: Vastus medialis.