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Chapter 1
Measuring the amount of lumbar stenosis via estimating the compression on lumbar magnetic resonance imaging is now considered standard in the preoperative work-up in patients with INC suitable for surgical treatment. However, correlation between baseline clinical complaints and the compression on MR images has never been evaluated. Furthermore, the prognostic value of compression on MR images at baseline for the extent of possible recovery at long-term clinical follow-up is also not known. Results of the degree of compression on MR images compared with clinical functioning at baseline and long-term follow-up are presented in chapter 8.
Without any good prognostic evidence, new devices have been implanted to treat patients with INC. Drugs are introduced using robust introduction models. However, it is possible to use spinal implants in patients without any good clinical evidence. Ethical considerations of the introduction of these devices are presented in chapter 9.
Summary and conclusions are presented in chapter 10 in English and in chapter 11 in Dutch.
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