Far-Infrared Therapy Promotes Nerve Repair following End-to-End Neurorrhaphy in Rat Models of Sciatic Nerve Injury

Table 3

Morphometric parameters of the regenerated nerve tissues at Week 8 after surgery in the NI/sham, NI/FIR, and normal groups.

Morphometric parameters	NI/sham	NI/FIR	Normal
Axon diameter (m)	3.19 ± 0.66	3.19 ± 0.45	6.42 ± 0.88^2,3
Myelin sheath thickness (m)	1.72 ± 0.06	3.32 ± 0.27^1	4.35 ± 0.37^2,3
Nerve fiber diameter (m)	7.28 ± 0.45	9.82 ± 0.44^1,3	8.19 ± 0.32^2
Medial nerve area (m^2)	501,633 ± 31,742	717,885 ± 13,940^1,3	522,490 ± 7,258

Significant differences between NI/sham and NI/FIR group (P < 0.05).
²Significant differences between NI/sham and normal groups (P < 0.05).
³Significantly differences between NI/FIR and normal groups (P < 0.05).