栓系松解术改善膀胱功能，我以前“随手”查过：
http://www.xys.org/forum/db/7/169/15.html
http://www.xys.org/forum/db/5/127/239.html

现在再举两例：
http://www.springerlink.com/content/0vxuypajfwr7xl01/
M. Selçuki, A. Ünlü, H. Çağlar Uğur, T. Soygür, N. Arıkan and D. Selçuki. Patients with urinary incontinence often benefit from surgical detethering of tight filum terminale. Child's Nervous System, Volume 16, Number 3, 150-154

http://thejns.org/doi/abs/10.3171/spi.2006.4.2.123?journalCode=spi
Surgical management of tethered cord syndrome in adults: indications, techniques, and long-term outcomes in 60 patients
Subjective improvement in bladder function was noted in 50% of patients with bladder dysfunction at presentation.

再再举两例，被无耻吹肖者babyfat歪曲为栓系松解术无效：

例3：瑞典Queen Silvia Children's Hospital小儿泌尿外科和小儿神经外科（ref#4）
20例继发性栓系综合征患者，施行栓系松解术后随访结果
膀胱功能障碍：改善35%，加重5%；10例术前膀胱功能严重障碍者，1例术后加重，9例维持不变。

其中“例2”分明是：56例中的19例“与术前相比，尿动力学检查无统计学意义”。结论为：继发性解拴术可显著改善泌尿学结果！

http://www.ncbi.nlm.nih.gov/pubmed/16952698
Tarcan et al. Does surgical release of secondary spinal cord tethering improve the prognosis of neurogenic bladder in children with myelomeningocele? J Urol. 2006 Oct;176(4 Pt 1):1601-6

56 children... Urodynamic parameters in terms of cystometric bladder capacity and detrusor leak point pressure substantially improved 6 months after untethering surgery (125 vs 170 ml and 69.1 vs 47.5 cm H2O, respectively, p < 0.05). Assessment of urodynamic findings in 19 children at 1 year failed to demonstrate a significant change in these parameters.
CONCLUSIONS:
Our study shows that secondary untethering surgery may significantly improve urological outcome.

http://www.ncbi.nlm.nih.gov/pubmed/17162083
Abrahamsson et al. Urodynamic findings in children with myelomeningocele after untethering of the spinal cord. J Urol. 2007 Jan;177(1):331-4
After untethering secondary to myelomeningocele 35% of the patients experienced improved bladder function and 5% deteriorated. All of the patients who deteriorated before untethering improved afterward, and 90% of those who were stable preoperatively continued to be stable postoperatively.