Correlation between articular cartilage status on outcomes and survivorship following meniscal allograft transplantation: A systematic review.

PURPOSE: To conduct a systematic review evaluating potential correlations between preoperative articular cartilage integrity on outcomes and survivorship in patients undergoing meniscal allograft transplantation (MAT). METHODS: A literature search was performed by querying SCOPUS, PubMed, Medline, and the Cochrane Central Register for Controlled Trials from database inception through May 2023 according to the 2020 PRISMA statement. Inclusion criteria were limited to studies reporting on outcomes and survivorship following MAT based on preoperative cartilage status. RESULTS: Sixteen studies, consisting of 1723 patients (n = 1758 total menisci), were identified in six level III and 10 level IV evidence studies. There was high heterogeneity in cartilage grading scales, reporting of concomitant cartilage procedures, and indications for MAT based on osteoarthritis. Patients with lower limb malalignment were either excluded or corrected with an osteotomy. MAT failure rate was reported in nine studies, with four studies reporting a greater rate of failure in knees with higher degrees of cartilage damage. Eight studies reported on clinical outcomes based on cartilage grade, with two studies reporting significant differences in clinical outcomes based on cartilage grade. Of the five studies reporting management of full-thickness chondral defects with cartilage surgery, three studies reported no significant difference in survivorship based on preoperative cartilage grade, while one study reported lower survivorship and one study reported unclear results. No studies found significant differences in survivorship and outcomes between medial and lateral MAT. CONCLUSIONS: Conflicting results and high variability in reporting of concomitant cartilage repair and indications for MAT exist in studies evaluating the efficacy of MAT based on articular cartilage status. The degree of preoperative chondral damage did not have a strong relationship with clinical outcomes following MAT. Higher degrees of cartilage damage were associated with higher MAT failure rates, with possible improvement in survivorship when treated with an appropriate cartilage procedure. LEVEL OF EVIDENCE: Level IV.

Platelet-Rich Plasma, Bone Marrow Aspirate Concentrate, and Hyaluronic Acid Injections Outperform Corticosteroids in Pain and Function Scores at a Minimum of 6 Months as Intra-Articular Injections for Knee Osteoarthritis: A Systematic Review and Network Meta-analysis.

PURPOSE: To compare the efficacy of common intra-articular injections used in the treatment of knee osteoarthritis, including corticosteroid (CS), hyaluronic acid (HA), platelet-rich plasma (PRP), and bone marrow aspirate concentrate (BMAC), with a minimum follow-up of 6-months. METHODS: A literature search was conducted using the 2020 Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines in August 2022 in the following databases: PubMed/MEDLINE, Scopus, Cochrane Database of Controlled Trials, and the Cochrane Database of Systematic Reviews. Level I to II randomized clinical trials with a minimum follow-up of 6 months that investigated the treatments of interest were included. Patient-reported outcome scores for pain and function at baseline and at latest follow-up were extracted, and the change in scores was converted to uniform 0 to 100 scales. Arm-based Bayesian network meta-analysis using a random-effects model was created to compare the treatment arms in pain and function. RESULTS: Forty-eight studies comprising a total of 9,338 knees were included. The most studied intra-articular injection was HA (40.9%), followed by placebo (26.2%), PRP (21.5%), CS (8.8%), and then BMAC (2.5%). HA and PRP both led to a significant improvement in pain compared with placebo. HA, PRP, and BMAC all led to a significant improvement in function scores when compared with placebo. Surface under the cumulative ranking curves (SUCRAs) of the interventions revealed that PRP, BMAC, and HA were the treatments with the highest likelihood of improvement in both pain and function, with overall SUCRA scores of 91.54, 76.46, and 53.12, respectively. The overall SUCRA scores for CS and placebo were 15.18 and 13.70, respectively. CONCLUSIONS: At a minimum 6-month follow-up, PRP demonstrated significantly improved pain and function for patients with knee osteoarthritis compared with placebo. Additionally, PRP exhibited the highest SUCRA values for these outcomes when compared with BMAC, HA, and CS. LEVEL OF EVIDENCE: Level II, meta-analysis of Level I to II studies.

Preoperative Depression Negatively Impacts Pain and Functionality Outcomes After Anterior Cruciate Ligament Reconstruction: A Systematic Review.

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.

A Systematic Review of Adverse Events and Complications After Isolated Posterior Medial Meniscus Root Repairs.

BACKGROUND: Medial meniscus posterior root (MMPR) tears are recognized as a substantial cause of disability and morbidity. However, meniscus root repair, regardless of technique, is not without potential complications. PURPOSE: To evaluate the reported incidence of complications and adverse events after isolated MMPR repair. STUDY DESIGN: Systematic review; Level of evidence, 4. METHODS: A systematic review was conducted according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines using Embase, PubMed, and Scopus databases with the following search terms combined with Boolean operators: "meniscus,""root," and "repair." Inclusion criteria consisted of level 1 to 4 human clinical studies in English or English-language translation reporting complications and adverse events after isolated posterior medial meniscus root repairs. The overall incidence of specific complications was estimated from the pooled sample of the included studies. RESULTS: Eleven studies with a total pooled sample of 442 patients were identified. The mean patient age was 58.1 years, while the mean final follow-up time was 37.2 months (range, 12-84.8 months). The overall incidence of complications was 9.7% (n = 43/442), with the most commonly reported complication being progressive degenerative changes within the knee (10.4%; n = 25/240; n = 5 studies). A total of 1.25% (n = 3/240) of patients who experienced degenerative changes required conversion to total knee arthroplasty. Repair failures were reported in 3.1% (n = 10/327; n = 8 studies) of patients. CONCLUSION: Repairing MMPR tears is critical in preventing accelerated progression of knee osteoarthritis in patients without significant knee osteoarthritis preoperatively. While this repair is still recommended and necessary in appropriate patients, this review found that the incidence of complications after isolated posterior medial meniscus root repair was 9.7%, primarily involving the presence of progressive degeneration, while repair failure was reported in 3% of patients.