Marc-Alexandre Guyot1,2,3,4, Olivier Agnani1,2,3,4, Laurent Peyrodie2,3,4, Demaille Samantha2,3, Cécile Donze1,2,3,4, Jean-Francois Catanzariti5,6,7,8,9,10,11. 1. Service de Médecine Physique et de Réadaptation, Centre Hospitalier Saint Philibert, Lille, France. 2. Université Nord de France, 59000, Lille, France. 3. UCLille, 59000, Lille, France. 4. Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France. 5. Service de Médecine Physique et de Réadaptation, Centre Hospitalier Saint Philibert, Lille, France. jean-francois.catanzariti@orange.fr. 6. Université Nord de France, 59000, Lille, France. jean-francois.catanzariti@orange.fr. 7. UCLille, 59000, Lille, France. jean-francois.catanzariti@orange.fr. 8. Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France. jean-francois.catanzariti@orange.fr. 9. Hautes Etudes d'Ingénieur Unité de Traitement des Signaux Biomédicaux, Lille, France. jean-francois.catanzariti@orange.fr. 10. Soins de Suite et de Réadaptation Pédiatrique Marc Sautelet, 59650, Villeneuve d'Ascq, France. jean-francois.catanzariti@orange.fr. 11. Service de Rhumatologie, CHRU de Lille, Lille, France. jean-francois.catanzariti@orange.fr.
Abstract
PURPOSE: Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine associated with disturbed postural control. Cervical proprioception participates in controlling orthostatic posture via its influence on head stabilization. We hypothesized that patients with AIS exhibit altered cervical proprioception. METHODS: We conducted a case-control study to evaluate cervical proprioception using the cervicocephalic relocation test (CRT) in 30 adolescents with AIS (15.5 ± 1.5 years; Cobb 24.8° ± 9.5°) versus 14 non-scoliotic controls (14.6 ± 2.0 years). CRT evaluates cervical proprioception by measuring the capacity to relocate the head on the trunk after active rotation of the head in the transversal plane without visual control. Each subject performed ten right and then ten left head rotations. RESULTS: The CRT results were pathological in 12 AIS patients (40 %). The CRT mean was significantly different between AIS patients with a pathological CRT (5° ± 1.4° for right rotation; 4.2° ± 0.9° for left rotation) compared with AIS patients with a normal CRT (2.7° ± 0.6° for right rotation; 2.9° ± 0.8° for left rotation) or with the control group (3.5° ± 2.1° for right rotation; 3.1° ± 1.2° for left rotation). CONCLUSION: Cervical proprioception is impaired in certain AIS patients. This anomaly may worsen the prognosis of AIS (headache; balance disorders; worsened spinal deformity; complication after spinal fusion). We recommend systematic screening for altered cervical proprioception in AIS patients.
PURPOSE:Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine associated with disturbed postural control. Cervical proprioception participates in controlling orthostatic posture via its influence on head stabilization. We hypothesized that patients with AIS exhibit altered cervical proprioception. METHODS: We conducted a case-control study to evaluate cervical proprioception using the cervicocephalic relocation test (CRT) in 30 adolescents with AIS (15.5 ± 1.5 years; Cobb 24.8° ± 9.5°) versus 14 non-scoliotic controls (14.6 ± 2.0 years). CRT evaluates cervical proprioception by measuring the capacity to relocate the head on the trunk after active rotation of the head in the transversal plane without visual control. Each subject performed ten right and then ten left head rotations. RESULTS: The CRT results were pathological in 12 AISpatients (40 %). The CRT mean was significantly different between AISpatients with a pathological CRT (5° ± 1.4° for right rotation; 4.2° ± 0.9° for left rotation) compared with AISpatients with a normal CRT (2.7° ± 0.6° for right rotation; 2.9° ± 0.8° for left rotation) or with the control group (3.5° ± 2.1° for right rotation; 3.1° ± 1.2° for left rotation). CONCLUSION: Cervical proprioception is impaired in certain AISpatients. This anomaly may worsen the prognosis of AIS (headache; balance disorders; worsened spinal deformity; complication after spinal fusion). We recommend systematic screening for altered cervical proprioception in AISpatients.
Authors: Grégoire Courtine; Alessandro Marco De Nunzio; Micaela Schmid; Maria Vittoria Beretta; Marco Schieppati Journal: J Neurophysiol Date: 2006-10-25 Impact factor: 2.714