Purpose: To systematically investigate the influence of preoperative depression diagnosis and symptom severity on outcomes after anterior cruciate ligament reconstruction (ACLR).
Methods: A literature search was performed using the PubMed, Scopus, and Embase databases according to the 2020 PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) guidelines. Studies evaluating the impact of depression on clinical outcomes after ACLR were included. Clinical outcomes, changes in depression, and complications were aggregated.
Results: Nine studies comprising 308,531 patients (mean age, 28.1 years; age range, 14-50 years) were included. The depression incidence ranged from 3.8% to 42%. Seven studies showed postoperative improvement in depression scores, with 5 reporting statistical significance. Assessment of depression exhibited substantial variability, with Patient-Reported Outcomes Measurement Information System (PROMIS) scores being the most common method. Patients with depression, despite showing greater improvements in scores, experienced significantly higher PROMIS Pain Interference scores preoperatively (range, 59.1-65.7 vs 56.8-59.2) and postoperatively (range, 46.3-52.3 vs 46.3-47.4) than patients without depression. They also showed significantly lower preoperative (range, 33-38.1 vs 39.7-41.5) and postoperative (range, 51.6-56.7 vs 56.7-57.6) PROMIS Physical Function scores, regardless of greater score improvement. Patients affected by depression had significantly higher rates of minimal clinically important difference achievement for the PROMIS Physical Function score (71%-100% vs 80%) and similar rates for the PROMIS Pain Interference score (71%-81% vs 68%) compared with patients without depression in 3 studies. Depression was associated with reduced adherence to rehabilitation protocols and increased postoperative complications, including infection, graft failure, arthrofibrosis, and readmission.
Conclusions: ACLR yields favorable outcomes for patients with and without preoperative depression. Individuals with preoperative depression may report inferior outcomes in terms of pain and functionality; nevertheless, despite these challenges, they exhibit significant improvements across all outcome measures after surgery, including reductions in depression levels.
Level of evidence: Level IV, systematic review of Level II to IV studies.
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