Diagnostic criteria for camptocormia in Parkinson's disease: A consensus-based proposal

Parkinsonism & Related Disorders
Alfonso FasanoMichele Tinazzi

Abstract

Camptocormia is defined as an involuntary, marked flexion of the thoracolumbar spine appearing during standing or walking and resolving in the supine position or when leaning against a wall. However, there is no established agreement on the minimum degree of forward flexion needed to diagnose camptocormia. Likewise, the current definition does not categorize camptocormia on the basis of the bending fulcrum. We performed a survey among movement disorders experts to identify camptocormia using images of patients with variable degrees and types of forward trunk flexion by fulcrum (upper and lower fulcra). We tested the subsequently generated diagnostic criteria in a sample of 131 consecutive patients referred for evaluation of postural abnormalities. Experts reached full consensus on lower camptocormia (L1-Sacrum, hip flexion) with a bending angle ≥30° and upper camptocormia (C7 to T12-L1) with a bending angle ≥45°. This definition detected camptocormia in 9/131 consecutive PD patients (2 upper/7 lower) but excluded camptocormia in 71 patients considered to have camptocormia by the referring neurologist. Camptocormia can be defined as "an involuntary flexion of the spine appearing during standing or walking and resolving in the su...Continue Reading

Citations

Aug 8, 2018·Journal of Neural Transmission·Urban M FietzekAndres O Ceballos-Baumann
Dec 12, 2018·Journal of Neurology·Jorik NonnekesEvžen Růžička
Dec 19, 2019·Frontiers in Neurology·Christian SchlenstedtNils G Margraf
Sep 21, 2019·Movement Disorders Clinical Practice·Michele TinazziChristian Geroin
Jun 23, 2020·Journal of Parkinson's Disease·Carsten BuhmannWolfgang H Jost
Jan 20, 2021·NPJ Parkinson's Disease·Yijie LaiDianyou Li
Apr 4, 2021·Acta neurologica Belgica·Massimiliano TodiscoGiuseppe Cosentino

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