The Use of a Dehydrated Amnion/Chorion Membrane Allograft in Patients Who Subsequently Undergo Reexploration after Posterior Lumbar Instrumentation

Table 1

Scoring scheme for the presence of adhesions and quality of the dissection plane.

Score	Description
1	Separates with no adhesion—applicable tissues can be easily separated from the study site without the use of surgical dissection
2	Easily detachable—applicable tissues can be safely separated from the study site with minimal use of blunt surgical instruments to overcome light adhesion
3	Dissection required—applicable tissues can be safely separated from the study site while using blunt surgical tools to overcome moderate adhesion
4	Sharp dissection required—applicable tissues cannot be separated from the study site without risk of damage as the use of sharp surgical tools is required to overcome tenacious adhesion