Weakness
Weakness is a drop in the strength of one or more muscles surrounding the knee joint. A measurable fall of muscle function and loss of muscle resiliency is the medical definition of weakness which might occur due to an injury or wear and tear of the muscles within the knee. The weakness of the knee generally affects one or multiple muscles surrounding the knee joint. Certain diseases, including toxin infection, physical trauma, neuromuscular disorders, and metabolic diseases can be the potential causes of muscle weakness around the knee area.
References
- https://www.webmd.com/pain-management/knee-pain/default.htm
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3704066/
- https://www.aafp.org/afp/2009/0201/p215.html
- https://pubmed.ncbi.nlm.nih.gov/17193871/