Impairment of Postural Reflexes in Parkinson’s Disease

1970 ◽  
Vol 4 (6) ◽  
pp. 332-336 ◽  
Author(s):  
J. Chaco ◽  
E. Wolf
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Reflexes

Postural reflexes in Parkinson's disease during ‘resist’ and ‘yield’ tasks

1995 ◽  
Vol 129 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Bastiaan R. Bloem ◽  
Dennis J. Beckley ◽  
Michael P. Remler ◽  
Raymund A.C. Roos ◽  
J.Gert van Dijk
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Reflexes

Altered postural reflexes in Parkinson's disease: A reverse hypothesis

1992 ◽  
Vol 39 (3) ◽  
pp. 243-247 ◽  
Author(s):  
B.R. Bloem ◽  
J.G. Van Dijk ◽  
D.J. Beckley ◽  
R.A.C. Roos ◽  
M.P. Remler ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Reflexes

scholarly journals Rapid Destructive Arthropathy of the Knee in Parkinson’s Disease with Pisa Syndrome: A Case of Knee-Spine Syndrome

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Hirokazu Takai ◽  
Masato Kitajima ◽  
Seiko Takai ◽  
Tomoki Takahashi ◽  
Ken-ichi Katsura ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Knee Osteoarthritis ◽  
Knee Pain ◽  
Joint Surface ◽  
Lateral Side ◽  
Radiographic Findings ◽  
Postural Reflexes ◽  
Pisa Syndrome ◽  
Postural Deformity

The changes occurring in knee osteoarthritis often cause alterations in the spinal loading condition, which further lead to degenerative changes. This close relationship of the knee and spine has been reported as knee-spine syndrome. A 60-year-old woman with Parkinson’s disease (PD; Hoehn-Yahr stage IV) had severe knee pain with moderate lateral osteoarthritis of the knee (Kellgren-Lawrence classification grade II). Conservative therapy had no effect at all, and the knee developed destructive osteoarthritis rapidly without any traumatic episodes. The radiographic findings progressed to Kellgren-Lawrence grade IV within a month. Magnetic resonance imaging revealed partial depression of the joint surface, including shredded ossicles and substantial amounts of synovial fluid. The imaging findings were considered to be caused by a subchondral insufficiency fracture (SIF). Total knee arthroplasty was performed using a semiconstrained prosthesis. The alignment of her lower extremity improved, and the patient could walk without knee pain. The patient had Pisa syndrome, a lateral flexion of the trunk, which is a postural deformity of the trunk secondary to long-standing PD. The postural deformity in PD is not based on spinal deformity itself but on the loss of postural reflexes and the imbalance of muscle tonus. Her left knee pain appeared 1 month after L1-L4 posterior lumbar interbody fusion (PLIF) as the Pisa syndrome to her left side worsened. The more the trunk tilts to the lateral side, the center of the gravity axis will shift and pass through more lateral points of the knee and result in higher knee load. The stress concentration from the spine to the lateral joint of the knee caused lateral knee osteoarthritis, namely, knee-spine syndrome. When patients undergo correction surgery for adult spinal disorder with impairment of postural reflexes, they need to be followed up carefully regarding not only the spinal alignment but also the lower extremities.

Evaluation of Efferent Auditory System and Hearing Quality in Parkinson's Disease: Is the Difficulty in Speech Understanding in Complex Listening Conditions Related to Neural Degeneration or Aging?

2020 ◽  
pp. 1-9
Author(s):  
Nuriye Yıldırım Gökay ◽  
Bülent Gündüz ◽  
Fatih Söke ◽  
Recep Karamert
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Auditory System ◽  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Auditory Pathway ◽  
Normal Hearing ◽  
System Function ◽  
Distortion Product

Purpose The effects of neurological diseases on the auditory system have been a notable issue for investigators because the auditory pathway is closely associated with neural systems. The purposes of this study are to evaluate the efferent auditory system function and hearing quality in Parkinson's disease (PD) and to compare the findings with age-matched individuals without PD to present a perspective on aging. Method The study included 35 individuals with PD (mean age of 48.50 ± 8.00 years) and 35 normal-hearing peers (mean age of 49 ± 10 years). The following tests were administered for all participants: the first section of the Speech, Spatial and Qualities of Hearing Scale; pure-tone audiometry, speech audiometry, tympanometry, and acoustic reflexes; and distortion product otoacoustic emissions (DPOAEs) and contralateral suppression of DPOAEs. SPSS Version 25 was used for statistical analyses, and values of p < .05 were considered statistically significant. Results There were no statistically significant differences in the pure-tone audiometry thresholds and DPOAE responses between the individuals with PD and their normal-hearing peers ( p = .732). However, statistically significant differences were found between the groups in suppression levels of DPOAEs and hearing quality ( p < .05). In addition, a statistically significant and positive correlation was found between the amount of suppression at some frequencies and the Speech, Spatial and Qualities of Hearing Scale scores. Conclusions This study indicates that medial olivocochlear efferent system function and the hearing quality of individuals with PD were affected adversely due to the results of PD pathophysiology on the hearing system. For optimal intervention and follow-up, tasks related to hearing quality in daily life can also be added to therapies for PD.

Sign in / Sign up

Export Citation Format

Share Document