The influence of postural deformities on neck function and pain in patients with Parkinson's disease.

Abstract

Trunk alignment is thought to contribute to neck function. However, this common assumption is not clear in patients with Parkinson's disease (PwPD) suffering from different postural deformities such as: Pisa syndrome (PS), Camptocormia & Antecollis (C&A). to investigate the effect of different postural deformities including PS and C&A on neck function and pain in patient (PwPD). Forty-five participants belonging to three groups: 15 PD patients without postural disorders (PD), 15 with PS, and 15 with C&A. The function, disability and pain were assessed by Neck Disability Index (NDI), and Brief Pain Inventory (BPI) which used to assess the pain severity (BPI-PS) and Pain Interference (BPI-PI). All groups completed clinical assessments by the Unified Parkinson's Disease Rating Scale (UPDRS), Modified Hoenh & Yahr (mH&Y) staging and the Levodopa Equivalent Daily Dose (LEDD). PD group compared with PS and C&A groups showed differences in NDI, BPI-PS, BPI-PI, LEDD and mH&Y staging (P<0.001), but no differences found in PD duration, UPDRS-II and III in the same groups. Moreover, no differences were observed between PS and C&A groups in the mentioned scales. These results demonstrated that PS and C&A are associated with severe impairment of neck functions, and pain in PwPD.