Dublin, OH
A 30-year-old male asked:
Painful cyst in left knee adjacent to posterior horn of medial meniscus. no meniscus tear (confirmed via mri & arthroscopy). treatment options?
2 doctor answers • 3 doctors weighed in

Dr. Ahmad M Hadiedanswered
Orthopedic Surgery 50 years experience
Two options: 1-injection of steroid in the cyst with attempt to empty it the same time.
2-excision of the cyst. I would prefer the excision because they send to pathology and see what is it.
5.2k viewsAnswered >2 years ago

Dr. Tariq Niazianswered
Orthopedic Surgery 44 years experience
See below:: Most cysts in the back of the knee are due to knee joint causes, which improve as the causes is treated. So my recommendations would be:
1: do nothing except maybe pain meds, for 3 months; if no improvement, then;
2: aspiration (removing fluid) under ultrasonic guidance for fluid/needle biopsy; or;
3: removal of the cyst through the back of the knee, to get tissue for biopsy.
5.2k viewsAnswered >2 years ago
1 comment

Dr. Rick Pospisil commented
Specializes in Orthopedic Surgery
May also consider repeat MRI with dye using a high resolution MRI machine ,as some MRIs without dye appear normal when they aren't,
Dec 10, 2015
Last updated Sep 23, 2017
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