Comparison between Constrained and Semiconstrained Knee Allograft-Prosthesis Composite Reconstructions

Table 2

Comparison of the results between groups.

	Group 1; (nonconstrained APC)	Group 2; (constrained APC)
Survival rate at 5–10 years	69%–62%	80%–53%
Failures	16 cases	9 cases
Cause of revision (𝑛)	Deep infection (8); APC fracture (3); Instability (2); Nonunion (1); Aseptic loosening (1); Local recurrence (1)	Aseptic loosening (3); APC fracture (3); Deep infection (3)
Instability	8 cases	No cases