Complications Related to Arthroscopic Isolated Posterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis of 4162 Patients.

A total of 65 studies comprising 4162 patients met the inclusion criteria.

The most frequent postoperative complications were persistent postoperative pain (4.2% [95% CI, 2.3%-6.6%]), residual posterior laxity (4.1% [95% CI, 2.4%-6.2%]), and arthrofibrosis (3.1% [95% CI, 1.8%-4.8%]).

Structural complications occurred at lower rates, including tunnel enlargement (2.5% [95% CI, 0.5%-5.8%]), graft failure or rupture (1.7% [95% CI, 0.8%-2.8%]), and postoperative osteoarthritis (2.2% [95% CI, 1.2%-3.6%]).

Reoperations remained infrequent, with nonrevision reoperations at 3.4% (95% CI, 1.8%-5.4%) and revision PCLR at 1.1% (95% CI, 0.7%-1.6%).