Sensory Recovery Outcome after Digital Nerve Repair in Relation to Different Reconstructive Techniques: Meta-Analysis and Systematic Review

Table 1

The modified Highet classification.

Sensory recovery outcome	Highet	s2PD	m2PD	Recovery of sensibility
Failure	S0	—	—	No recovery of sensibility in the autonomous zone of the nerve
Poor	S1	—	—	Recovery of deep cutaneous pain sensibility with the autonomous zone of the nerve
	S1+	—	—	Recovery of superficial pain sensibility
	S2	—	—	Recovery of superficial pain and some touch sensibility
	S2+	—	—	As in S2, but with over response
	S3	>15 mm	>7 mm	Recovery of pain and touch sensibility with disappearance of over response
Good	S3+	7–15 mm	4–7 mm	As in S3, but with good localization of the stimulus and imperfect recovery of 2PD
Excellent	S4	2–6 mm	2-3 mm	Complete sensory recovery

Listings of sensory recovery outcome, the Highet classification, static two-point discrimination (s2PD), moving two-point discrimination (m2PD), and recovery of sensibility. Source: Mackinnon and Dellon [27].