Biological Amnion Prevents Flexor Tendon Adhesion in Zone II: A Controlled, Multicentre Clinical Trial

Table 3

Strickland’s original classification system¹.

Group	PIP + DIP return (%)	(PIP+DIP flexion) – extension loss (degree)
Excellent	85-100	150+
Good	70-84	125-149
Fair	50-69	90-124
Poor	<50	<90

1 Strickland and Glogovac (1980).