**5. Conclusions**

For the patient with "post-meniscectomy syndrome" with either a partially or entirely deficient meniscus, surgical treatment options exist which have demonstrated both short, medium, and in the case of meniscus allograft, long term success. Allografts have demonstrated greater than 50% survivorship at 20-year follow-up, while scaffolds have demonstrated the progressive reabsorption with substitution with a meniscus-like tissue with a potential chondroprotective effect in shorter-term studies. For both allografts and scaffolds, patient selection and the treatment of concomitant knee pathology is mandatory in order to achieve both short and long-term clinical improvement.
