The meniscus has an important function in protecting the joint surfaces within its compartment whilst facilitating joint lubrication and contributing to stability of the knee. It is now well recognized that meniscal loss leads to degenerative change.
This paper details the options to reconstruct the meniscus. While the evidence is not conclusive for a chondroprotective effect, there is growing evidence that meniscal reconstruction gives significant functional and symptomatic improvement.
Meniscal scaffolds are indicated for segmental loss of meniscal tissue, and provide a framework for regeneration of tissue. Two types are in current use, and medium-to long-term results indicate efficacy and durability, provided that strict indications are followed.
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Smith, N.A., Parkinson, B., Spalding, T. "Meniscal allograft transplantation and meniscal scaffolds; where are we up to now?" Orthopaedics and Trauma (2015): Vol. 29. 31-37. Web.