Piriformis syndrome is often left undiagnosed and mistaken with other pains due to similar symptoms with back pain, quadriceps pain, lower leg pain, and buttock pain. These symptoms include tenderness, tingling and numbness initiating in lower back and buttock area and then radiating down to the thigh and to the leg. [1] A precise test for Piriformis syndrome has not yet been developed and thus hard to diagnose this pain. [2] The pain is often initiated by sitting and walking for a longer period. [3] In 2012, 17.2% of lower back pain patients developed Piriformis syndrome. [2] Piriformis syndrome does not occur in children, and mostly seen in women of age between thirty and forty. This is due to hormone changes throughout their life, especially during pregnancy, where muscles around the pelvis, including Piriformis muscles, tense up to stabilize the area for birth. [4] In 2011, out of 263 patients between the ages of 45 to 84 treated for Piriformis syndrome, 53.3% were female. Females are two times more likely to develop Piriformis syndrome than males. Moreover, females had longer stay in hospital during 2011 due to high prevalence of the pain in females. The average cost of treatment was $29,070 for hospitalizing average 4 days. [5]

Comparison of the average cost of treatment between males and females in 2010 and 2011. The average cost is nearly the same for males within these two years .However, the cost of treatment increased in 2011 for females. Hcupnet.ahrq.gov (2010, 2011)
Comparison of Length of stay between males and females in 2010 and 2011. The number of stay decreased for males in 2011. However, the number of hospital stay for females increased in 2011. Hcupnet.ahrq.gov (2010, 2011)
  1. ^ Wong, L.F.A., Mullers, S., McGuinness, E., Meaney, J.,O’ Connell, M.P., & Fitzpatrick, C. (2012). Piriformis pyomyositis, an unusual presentation of leg pain postpartum-case report and review of literature. The Journal of Maternal Fetal and Neonatal Medicine, 25(8), 1505-1507
  2. ^ a b Chen, C.K.,& Nizar, A.J. (2013). Prevalence of piriformis syndrome in chronic low back pain patients: a clinical diagnosis with modified FAIR test. Pain Practice, 13(4), 276-281
  3. ^ Dere, K., Akbas,M.,& Luleci, N. (2009). A rare cause of a piriformis syndrome. Journal of Back and Musculoskeletal Rehabilitation, 22, 55-58
  4. ^ Papadopoulos, E.C., & Khan, S.N. (2004). Piriformis syndrome and low back pain: a new classification and review of the literature. Orthopedic Clinics of North America, 35(1), 65-71
  5. ^ hcupnet.ahrq.gov,2011