ABSTRACT
Objective To explore the curative effect of biofeedback-controlled electrical stimulation combined with the pelvic floor muscle training among women with prolapsed pelvic organs.Methods Sixty women with pelvic organ prolapse were divided at random into an observation group and a control group,each of 30.Both groups were given biofeedback-controlled electrical stimulation of the vaginal muscles,but the observation group also received Kegel training and pelvic floor function training using a vaginal dumbbell.The intervention consisted of 2 courses with an interval of 2 weeks.One course met 15 times,3 times a week,lasting 30 minutes each time.Before and after the treatment,both groups were assessed using pelvic floor electromyography and the GRRUG method was used to evaluate their pelvic floor muscle strength.Results Before the treatment,there were no significant differences between the observation and control groups in terms of the average amplitude of the potentials generated by the pelvic floor muscles in resting,in rapid contraction or in endurance contraction.After the treatment the observation group generated significantly higher potentials than the control group on average.The pelvic floor muscle strength of the observation group reached level V in 23 cases,significantly more than the 9 cases observed in the control group.The total effectiveness rate of the observation group was 96.7％,significantly higher than the control group's 73.3％.Conclusion Biofeedback-controlled electrical stimulation combined with pelvic floor muscle training is effective in treating females with pelvic organ prolapse.
ABSTRACT
Objective To explore the curative effect of biofeedback-controlled electrical stimulation combined with the pelvic floor muscle training among women with prolapsed pelvic organs.Methods Sixty women with pelvic organ prolapse were divided at random into an observation group and a control group,each of 30.Both groups were given biofeedback-controlled electrical stimulation of the vaginal muscles,but the observation group also received Kegel training and pelvic floor function training using a vaginal dumbbell.The intervention consisted of 2 courses with an interval of 2 weeks.One course met 15 times,3 times a week,lasting 30 minutes each time.Before and after the treatment,both groups were assessed using pelvic floor electromyography and the GRRUG method was used to evaluate their pelvic floor muscle strength.Results Before the treatment,there were no significant differences between the observation and control groups in terms of the average amplitude of the potentials generated by the pelvic floor muscles in resting,in rapid contraction or in endurance contraction.After the treatment the observation group generated significantly higher potentials than the control group on average.The pelvic floor muscle strength of the observation group reached level V in 23 cases,significantly more than the 9 cases observed in the control group.The total effectiveness rate of the observation group was 96.7％,significantly higher than the control group's 73.3％.Conclusion Biofeedback-controlled electrical stimulation combined with pelvic floor muscle training is effective in treating females with pelvic organ prolapse.
ABSTRACT
Objective To investigate the stress distribution of the femur after cemented prosthetic replacement in aged patients with comminuted intertrochanteric fracture and to analyze the difference of stress distribution between cemented long and short stem prosthesises.Methods A volunteer's left femur image data was obtained by spiral CT tomography.Then,the three-dimensional model of the femur was reconstructed with Mimics and Unigraphics modeling softwares.Based on the above analysis,we established three-dimensional modles of comminuted intertrochanteric fracture,long stem and short stem prothesises,and mantle layer of cement.Finally,we established the three-dimensional finite element model of these materials with software ABAQUS6.5,and carried out finite element analysis to the model in biomechanics.Results The stress disrilbution of the femur after cemented long and short stem prosthetic replacement didn't change significantly.The stress distribution of short stem between cement and prothetic stem were in the correlative area of distal end of the prothesis,and the lateral peak value was 21.3 MPa which exceeds the fatigue strength of bone cement;However,that of long stem were in the middle of medial interface and in the distal end of bilateral interface.There was no significant stress concentration zone in the mantle layer of cement which was used to reconstruct calcar femorale.Conclusion The stress distribution of the femur didn't change significantly after treating comminuted intertrochanteric fracture of aged patients with cemented long and short stem prosthesises.The cemented long stem prosthesises may be more suitable to treat these patients for its lower loosening probability.