title: Cervicocephalic relocation test to evaluate cervical proprioception in adolescent idiopathic scoliosis.
abstract: 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.
  
  
  
  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.
  
  
  
  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).
  
  
  
  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.
authors.affiliation: Service de Médecine Physique et de Réadaptation, Centre Hospitalier Saint Philibert, Lille, France.|Université Nord de France, 59000, Lille, France.|UCLille, 59000, Lille, France.|Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France.
authors.forename: Marc-Alexandre
authors.initials: MA
authors.lastname: Guyot
authors.affiliation: Service de Médecine Physique et de Réadaptation, Centre Hospitalier Saint Philibert, Lille, France.|Université Nord de France, 59000, Lille, France.|UCLille, 59000, Lille, France.|Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Agnani
authors.affiliation: Université Nord de France, 59000, Lille, France.|UCLille, 59000, Lille, France.|Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Peyrodie
authors.affiliation: Université Nord de France, 59000, Lille, France.|UCLille, 59000, Lille, France.
authors.forename: Demaille
authors.initials: D
authors.lastname: Samantha
authors.affiliation: Service de Médecine Physique et de Réadaptation, Centre Hospitalier Saint Philibert, Lille, France.|Université Nord de France, 59000, Lille, France.|UCLille, 59000, Lille, France.|Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France.
authors.forename: Cécile
authors.initials: C
authors.lastname: Donze
authors.affiliation: Service de Médecine Physique et de Réadaptation, Centre Hospitalier Saint Philibert, Lille, France. jean-francois.catanzariti@orange.fr.|Université Nord de France, 59000, Lille, France. jean-francois.catanzariti@orange.fr.|UCLille, 59000, Lille, France. jean-francois.catanzariti@orange.fr.|Groupe Hospitalier de l'Institut Catholique de Lille, Lille, France. jean-francois.catanzariti@orange.fr.|Hautes Etudes d'Ingénieur Unité de Traitement des Signaux Biomédicaux, Lille, France. jean-francois.catanzariti@orange.fr.|Soins de Suite et de Réadaptation Pédiatrique Marc Sautelet, 59650, Villeneuve d'Ascq, France. jean-francois.catanzariti@orange.fr.|Service de Rhumatologie, CHRU de Lille, Lille, France. jean-francois.catanzariti@orange.fr.
authors.forename: Jean-Francois
authors.initials: JF
authors.lastname: Catanzariti
mesh_terms: D000293:Adolescent; D016022:Case-Control Studies; D002574:Cervical Vertebrae / Q000502:physiology*; D005260:Female; D019416:Head Movements / Q000502:physiology*; D006801:Humans; D008297:Male; D009333:Neck / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011434:Proprioception / Q000502:physiology*; D012600:Scoliosis / Q000503:physiopathology*
keywords: Adolescent idiopathic scoliosis; Cervical proprioception; Cervicocephalic relocation test; Oculo-cervical reprogrammation protocol