Evaluation of axonal loss in ulnar sensory nerve fibers recorded from ring and little fingers secondary to idiopathic carpal tunnel syndrome in Egyptian patients

Egyptian Rheumatology and Rehabilitation

Table 4 Correlation between median motor distal latency and sensory peak latency and conduction studies of ulnar nerve recording D4 and D5

Nerve conduction study parameters	Median motor DL		Median motor amp		Median motor CV		Median sensory PL
Nerve conduction study parameters	r	p	r	p	r	p	r	p
US PL	0.115	0.123	0.093	0.212	− 0.214**	0.004	0.187*	0.011
US amp	− 0.373**	<0.0001	0.211**	0.004	0.016	0.825	− 0.379**	<0.0001
US CV	− 0.119	0.108	0.082	0.271	0.299	<0.0001	− 0.170	0.021
UL4	0.147*	0.049	0.033	0.655	− 0.299**	<0.0001	0.270**	<0.0001
Uamp4	− 0.154*	0.037	− 0.006	0.940	− 0.171*	0.021	− 0.174*	0.018
UCV4	0.032	0.670	0.244	0.238	0.238**	0.001	− 0.048	0.522

D4 digit 4, D5 digit 5, amp amplitude, CV conduction velocity, US ulnar sensory, PL peak latency, UL4 ulnar latency recorded from 4th digit, Uamp4 ulnar amplitude recorded from 4th digit, UCV4 ulnar conduction velocity recorded from 4th digit, r Pearson correlation coefficient
*p is significant at ≤ 0.05, ** < 0.01 highly significant