STUDY DESIGN: Prospective study. PURPOSE: We aimed to validate the Persian version of the modified Oswestry disability questionnaire (MODQ) in patients with low back pain. OVERVIEW OF LITERATURE: Modified Oswestry low back pain disability questionnaire is a well-known condition-specific outcome measure that helps quantify disability in patients with lumbar syndromes. METHODS: To test the validity in a pilot study, the Persian MODQ was administered to 25 individuals with low back pain. We then enrolled 200 consecutive patients with low back pain to fill the Persian MODQ as well as the short form 36 (SF-36) questionnaire. Convergent validity of the MODQ was tested using the Spearman's correlation coefficient between the MODQ and SF-36 subscales. Intraclass correlation coefficient (ICC) and Cronbach's α coefficient were measured to test the reliability between test and retest and internal consistency of all items, respectively. RESULTS: ICC for individual items ranged from 0.43 to 0.80 showing good reliability and reproducibility of each individual item. Cronbach's α coefficient was 0.69 showing good internal consistency across all 10 items of the Persian MODQ. Total MODQ score showed moderate to strong correlation with the eight subscales and the two domains of the SF-36. The highest correlation was between the MODQ and the physical functioning subscale of the SF-36 (r=–0.54, p<0.001) and the physical component domain of the SF-36 (r=–0.55, p<0.001) showing that MODQ is measuring what it is supposed to measure in terms of disability and physical function. CONCLUSIONS: Persian version of the MODQ is a valid and reliable tool for the assessment of the disability following low back pain.
Humans ; Low Back Pain* ; Outcome Assessment (Health Care) ; Pilot Projects ; Prospective Studies

STUDY DESIGN: Prospective study. PURPOSE: We aimed to validate the Persian version of the modified Oswestry disability questionnaire (MODQ) in patients with low back pain. OVERVIEW OF LITERATURE: Modified Oswestry low back pain disability questionnaire is a well-known condition-specific outcome measure that helps quantify disability in patients with lumbar syndromes. METHODS: To test the validity in a pilot study, the Persian MODQ was administered to 25 individuals with low back pain. We then enrolled 200 consecutive patients with low back pain to fill the Persian MODQ as well as the short form 36 (SF-36) questionnaire. Convergent validity of the MODQ was tested using the Spearman's correlation coefficient between the MODQ and SF-36 subscales. Intraclass correlation coefficient (ICC) and Cronbach's α coefficient were measured to test the reliability between test and retest and internal consistency of all items, respectively. RESULTS: ICC for individual items ranged from 0.43 to 0.80 showing good reliability and reproducibility of each individual item. Cronbach's α coefficient was 0.69 showing good internal consistency across all 10 items of the Persian MODQ. Total MODQ score showed moderate to strong correlation with the eight subscales and the two domains of the SF-36. The highest correlation was between the MODQ and the physical functioning subscale of the SF-36 (r=–0.54, p<0.001) and the physical component domain of the SF-36 (r=–0.55, p<0.001) showing that MODQ is measuring what it is supposed to measure in terms of disability and physical function. CONCLUSIONS: Persian version of the MODQ is a valid and reliable tool for the assessment of the disability following low back pain.
Humans ; Low Back Pain* ; Outcome Assessment (Health Care) ; Pilot Projects ; Prospective Studies

STUDY DESIGN: Retrospective study. PURPOSE: To determine if posterior surgery alone can satisfactorily treat post-traumatic kyphosis (PTK). OVERVIEW OF LITERATURE: One of the worst complications of vertebral fractures is PTK. The type of surgery and approach to treat a symptomatic and refractory PTK is a challenging issue in spinal surgery, and yet, there is no specific treatment algorithm. METHODS: From August 2003 to September 2010, we collected 26 cases (male to female ratio, 2.25; mean age, 31.9+/-9.7 years and follow-up period of 42.4+/-8.1 months) with PTK treated by posterior column osteotomy, spondylodesis, instrumentation and cement vertebroplasty in one stage posterior surgery. PTK angle, Oswestry Disability Index (ODI), visual analogue scale (VAS), and subjective satisfaction from surgery were used to determine the results. We used a student t test for analyzing the data before and after surgery. RESULTS: In our patients, T11 and L1 had the highest incidence of vertebral fractures. The results indicated that in PTK, ODI, and VAS were significantly improved this surgery. Solid fusion occurred in 96.2% of patients with 3.2degrees+/-2.1degrees loss of correction. A total of 84.6% of patients have satisfaction level of excellent and good. CONCLUSIONS: Posterior surgery alone with posterior column osteotomy, vertebroplasty, posterior spinal fusion and instrumentation can effectively treat symptomatic PTK.
Female ; Follow-Up Studies ; Humans ; Incidence ; Kyphosis* ; Osteotomy* ; Retrospective Studies ; Spinal Fusion* ; Vertebroplasty*