Acute meniscus injury

A tear of the knee's shock-absorbing cartilage, often from twisting.

Overview

An acute meniscus injury is a tear of the cartilage that cushions the knee, usually from a twisting movement on a loaded leg. Symptoms include pain, swelling and sometimes catching or locking. Many tears settle with rehabilitation.

Symptoms

  • Pain along the joint line
  • Swelling developing over hours
  • Catching, clicking or locking
  • Pain with deep squatting or twisting

Causes

  • Twisting on a planted, loaded leg
  • Sport-related pivoting
  • Degenerative tears in older adults

Treatment

  • Early swelling and movement management
  • Progressive strengthening
  • Return-to-activity progression
  • Surgical opinion for locking or persistent symptoms