M
Meniscus
The meniscus is the shock absorber of the knee. It is a crescentic wedge of fibre-filled cartilage, seated in the gap between the two long bones of the knee (tibia and femur). Page updated June 2024 by Dr Sheila Strover (Clinical Editor)
Meniscus cartilage
The meniscus cartilage or 'semi-lunar' cartilage is the shock absorber of the knee, sandwiched between the thighbone and shinbone.
Meniscus replacement
Meniscus replacement refers to local transplants or implants to help restore knee function after the native meniscus has been removed. Page updated April 2024 by Dr Sheila Strover (Clinical Editor)
Meniscus surgery
The knee meniscus is an important structure, and when it is damaged surgery attempts to restore its function. If damaged beyond repair, it is possible to perform a transplant.
Merchant view
The Merchant view is a special X-ray view of the knee that shows clearly the position of the patella in the underlying groove of the trochlea with the muscles at rest. Page updated March 2024 by Dr Sheila Strover (Clinical Editor)
Mesenchymal stem cell
A mesenchymal stem cell is a multipotent progenitor cell that can be isolated and expanded from various sources and which can help to repair and rebuild tissues.
Mesenchyme
Mesenchyme is a loosely organized embryonic tissue which develops into connective and skeletal tissues, including blood and lymph.
Meta-analysis
Meta-analysis is the statistical procedure for combining data from multiple studies.
Metallosis
Metallosis is a condition where the body is adversely affected by metal ions from metal abrasion of implants.
Metaphysis
The metaphysis is the part of any long bone that is the growing area, just next to the growth plate. With maturity it turns into proper bone and the limb stops growing.