Health Questions and Answers

Archive for March, 2008

Question: What is Baker’s cyst? How does it form?

Saturday, March 29th, 2008

Answer: Swelling of the knee capsule extending posteriorly to the popliteal fossa (hence the synonym popliteal cyst). Baker’s cyst is thought to develop as the knee is flexed, producing a significant rise in intra-articular pressure and an outpouching of the synovium posteriorly. The cruciate ligaments may act as a one-way valve, making it hard for […]

Posted in Rheumatology | 3 Comments »


Question: How does RA commonly affect the spine?

Saturday, March 29th, 2008

Answer: The thoracic and lumbar spines are rarely if ever involved with RA. The cervical spine is commonly involved and deserves special mention. Cervical spine involvement usually is heralded by pain with motion and occipital headache. Significant laxity at the alantoaxial joint with subluxation makes patients prone to slowly progressive, spastic quadriparesis. If this laxity […]

Posted in Rheumatology | No Comments »