Hello,
The 
meniscus injury management depends upon various clinical parameters such as:
- Amount of pain with intensity
- Restriction of routine activities
- Type of daily work as very active, sedentary life style or else
- Involvement of sports activities
- Age and associated co morbid conditions
- Level of degenerative changes of the knee joint
- Patient concerns for the issue
- Extent of damage as evidenced by 
MRI or X-ray as supportive document
The 
primary care consists of 
   - Assisted physiotherapy
   - Postural adaptations
   - NSAID
   - Weight control
   - Supportive braces
   - Knee cap
   - Plaster cast in some cases
   - Surgery as last resort (arthroscopic approach preferred)
If you can share further needed details, we can discuss the issue far better 
   in sound clinical way.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Bhagyesh V. Patel, General Surgeon