Sacral Nerve Injury In Dogs Bladder Function And Hindlimb Muscle Influence Experimental Study

Objective: To study the functional dog sacral nerve to the bladder and hindlimb muscles strength, understanding of sacral nerve damage caused by the bladder and lower extremity impairment situation. Methods: 12 normal dogs from the 4 selected group of only the normal, measuring their capacity as a normal bladder pressure, then 12 normal dogs were randomly assigned 12 dogs were divided into 3 groups: Group I, two S1 and S2 nerve root side while amputation; the second group, bilateral S2 and S3 nerve root transection at the same time; the third group, the left S2 and S3 nerve root at the same time from the off. Respectively after 1 day, 3 day, 7 days, 14 days and 1 month with urodynamic bladder pressure measurement apparatus to measure the pressure volume ratio (volume ratio = bladder pressure detrusor pressure difference Value / bladder changes the contents of the difference plot), and observe the changes in hind limb muscle strength (its target for the pulling dogs to hind limb to stand alone, to observe its hind legs to stand alone in its entire body weight of the duration). Results: The pressure volume ratio of the normal value of 0.70±0.085, after one month, the first group (bilateral S1 and S2) bladder pressure volume ratio of 0.17±0.013, the second group (bilateral S2 and S3) pressure-volume ratio was 0.23±0.013, the third group (left S2 and S3) bladder pressure-volume ratio of 0.63±0.047, compared with the normal group, the first group, second group and third group in January after both pressure-volume ratio down, where the first group (bilateral S1 and S2) and the normal group, the difference was statistically significant (t = 12.327 p <0.01), the second group (bilateral S2 and S3) compared with the normal group, The difference was statistically significant (t = 10.93 p <0.01), the third group (left S2, and S3) compared with the normal group, the difference was not statistically significant (t = 1.544 p> 0.1), to after a On the first group (bilateral S1, and S2) with the second group (bilateral S2, and S3) compared to no significant difference (t = 0.653 p> 0.5), the first group (bilateral S1, and S2) and the third group (left S2 and S3) compared to the difference was statistically significant (t = 5.966 p <0.01), the second group (bilateral S2 and S3) and the third group (left S2 and S3) compared to the difference was statistically significant (t = 5.188 p <0.01); hindlimb standing normal duration of 18.25 seconds±1.258, after one month, the first group (bilateral S1 and S2) hindlimb standing duration 9.25 seconds±0.957, the second group (bilateral S2 and S3) was 10.75 seconds±0.957, the third group (left S2 and S3) hindlimb standing duration of 17.25 seconds±1.258, compared with the normal group, the first group the second group and third group in January after the pressure volume ratio decreased, the first group (bilateral S1 and S2) and the normal group, the difference was statistically significant (t = 11.388 p <0.01), The second group (bilateral S2 and S3) compared with the normal group, the difference was statistically significant (t = 9.490 p <0.01), the third group (left S2 and S3) compared with the normal group, the difference was not statistically significant (t = 1.124 p> 0.2), to the first group in January after (bilateral S1 and S2) and the second group (bilateral S2 and S3) compared to no significant difference (t = 2.216 p> 0.05), the first group (bilateral S1 and S2) and third (left S2 and S3) compared to the difference was statistically significant (t = 10.12 p <0.01), the second group (two- side of the S2 and S3) and the third group (left S2 and S3) compared to the difference was statistically significant (t = 8.228 p <0.01). Conclusion: Bilateral S1 and S2 nerve root injury on bladder function and limb muscle strength dog the greatest impact, the left S2 and S3 nerve root injury on the dog bladder function and limb muscle strength the least, the Section sacral nerve injury different hind limb muscle of bladder functions and the impact of a difference.