title: [Comparative study between plate-graft, cage-plate and peek cage in cervical arthrodesis for cervical stenosis].
abstract: BACKGROUND
  In Mexico low back pain is a very frequent symptom in the orthopedic practice. It is an important cause of work absenteeism, it is difficult to diagnose due to its various etiologies, and its treatment should be carefully chosen as, according to the World Health Organization, only 4% of patients require surgery.
  
  
  OBJECTIVE
  To determine the frequency of low back pain at Hospital Angeles Mocel during a two-year period, and analyze the various etiologies and the treatment provided to patients.
  
  
  METHODS
  The data base of the Orthopedics and Traumatology Service at Hospital Angeles Mocel was analyzed. It consisted of 246 patients over'18 years of age admitted with a diagnosis of low back pain. Frequency, sex, age, etiology and treatment were analyzed.
  
  
  RESULTS
  At this hospital low back pain ranks second among the causes for hospital admission at the Orthopedics and Traumatology Service. Frequency is 13.5%; the most frequent age group affected is 31-45 years (36.9%); females were predominant (53.6%). Most cases admitted for low back pain were acute and had a posttraumatic etiology (90% of cases).
  
  
  CONCLUSIONS
  Low back pain is a frequent reason for visiting the doctor worldwide. Epidemiologic studies about the frequency, etiology and treatment of low back pain are scarce in Mexico, even though it is one of the major causes for hospital admission at a private hospital.
authors.forename: M
authors.initials: M
authors.lastname: Soto-Padilla
authors.forename: R L
authors.initials: RL
authors.lastname: Espinosa-Mendoza
authors.forename: J P
authors.initials: JP
authors.lastname: Sandoval-García
authors.forename: F
authors.initials: F
authors.lastname: Gómez-García
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D016304:Hospitals, Private; D006801:Humans; D017116:Low Back Pain / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D014947:Wounds and Injuries / Q000150:complications* / Q000453:epidemiology; D055815:Young Adult