Histological and morphological changes of multifidus muscle have been reported in lumbar disc herniation (LDH), but there is scarce research comparing the efficacy of different treatment programs that can correct multifidus dysfunction in chronic low back pain (LBP) with LDH. The purpose: this study will be to investigate and compare the effect of lumbar stabilization exercises and manipulation on multifidus muscle in chronic LBP patients with LDH. Subjects: sixty patients aged ranged from 45 - 65 years suffering from chronic LBP with LDH will be randomly assigned into three groups, each group includes 20 patients. Method: group (A) (control group) will receive general exercises for back muscles, group (B) will receive general exercises and lumbar stabilization exercises, and group (C) will receive general exercises and lumbar manipulation (B and C experimental groups). The outcome measurements pre and post 6 weeks of treatment will be pain intensity by visual analogue scale (VAS), functional disabilities by Oswestry disability index (ODI), lumbar repositioning by Biodex system (LR), cross sectional area (CSA) and the asymmetry of both sides of multifidus muscle at the fourth and fifth lumbar vertebrae by ultrasonography.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
60
Stretching and strengthening exercises for back muscles
Lumbar stabilization Exercises
Lumbar Manipulation
visual analogue scale
The patients will asked about the perception of pain using a 10 cm line with 0 (no pain) on one end and 10 (worst pain) on the other end. Patients will be asked to place a mark along the line to dente their level of pain.
Time frame: pre and post 6 weeks
functional disabilities by Oswestry disability index
It consists of 10 multiple- choice questions of back pain included disability in daily function and leisure time activities, for each question the patient selects one sentence out of six that best described his disability. For each section of six statements the total score is 5; if the first statement is marked, the score is zero, if the last is marked the score is 5. The final score calculated as follow: Total score\\ (5 x number of questions answered) x 100%. The maximal score is 50 (maximum disability) and the result taken as a percentage from the total score. High score indicate greater disability. Score from 0 to20% indicate minimal disability, score from 20 to 40% indicate moderate disability, score from 40 to 60% indicate sever disability, score from 60 to80% indicate crippled disability, and score from 80 to 100% indicate that the patient confined to bed
Time frame: pre and post 6 weeks
lumbar repositioning angle
Biodex system 3 pro Isokinetic dynamometer (Biodex Medical INC., Shirley, New York, USA), equipped with a special forward reclined back attachment, will be used to measure the lumbar repositioning angle of the lumbar region. * The participant will be positioned in 30° of lumbar flexion for 10 seconds and then instructed to remember the position because he/she will be asked to reproduce this position. * The participant returns to the neutral position and then will be given the verbal instruction of reproducing the target position as accurately as he/she could. * The subject will hold the final position for 3 seconds. The test will be repeated 3 times. The mean deviation or absolute error about the 30° target position will be calculated each time.
Time frame: pre and post 6 weeks
Cross sectional area of multifidus muscle
Ultrasonography instrument (Phillips HDI 5000) with a frequency 3.5-5 MHz will be used to measure the cross sectional area of multifidus muscles at levels of Lumbar vertebrae (4) and Lumbar vertebrae (5)
Time frame: pre and post 6 weeks
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