Description : Spastic paraplegia-8 is an autosomal dominant neurologic disorder characterized by
adult onset of progressive lower limb spasticity and hyperreflexia resulting in difficulty
walking. Some patients may become wheelchair-bound after several decades. Other features
may include upper limb spasticity, impaired vibration sense in the distal lower limbs,
and urinary urgency or incontinence (summary by de Bot et al., 2013). For a general
phenotypic description and a discussion of genetic heterogeneity of autosomal dominant
spastic paraplegia, see SPG3A (182600).;
Inheritance : Autosomal dominant;
Molecular basis : Caused by mutation in the KIAA0196 gene (KIAA0196, 610657.0001);