The primary objective of the study is to demonstrate the difference in the reduction of pain at 1 month after intradiscal infiltration of corticosteroids depending on symmetrical or asymmetrical active discopathies with MRI examination. The difference should be judged significant if it ⩾ 2 points.
As secondary objective, the study aims to study the correlation between pain reduction which will be assessed by numerical scale at 1 month and 6 months after intradiscal infiltration of corticosteroids and following parameters: the duration of chronic lumbago, the presence of associated root pains, the morphological characteristics with RMI examination of active discopathies, the co-existence of scoliosis, the sign of inter-somatic instability, the muscular trophicity of muscle erector of low back, the pelvic incidence, degree of lumbar lordosis, Cobb angle, wearing a corset.
Study Type
OBSERVATIONAL
Enrollment
95
Service d'imagerie médicale, Hôpital Raymond Poincaré, Garches, France
Garche, France
Assessement of change in pain
The change in pain will be evaluated by numerical scale NRS (numeric rating scale) by phone call after intradiscal infiltration of corticosteroids. NRS for pain: a scale from 0 (no pain) to 10 (worst pain). RMI examination will be performed 6 months before enrollment.
Time frame: at 1 month
Assessement of pain reduction according to the duration of evolution of chronic lumbago
The change in pain will be evaluated by NRS for pain (numeric rating scale for pain, a scale from 0 to 10) by phone call after intradiscal infiltration of corticosteroids, according to the duration of evolution of chronic lumbago or not will be assessed. Duration of pain before infiltration will be evaluated in months during the pre-inclusion consultation.
Time frame: at 1 month and 6 months
Assessement of pain reduction according to the presence of associated root pains or not.
The presence of associated root pains will be evaluated by NRS for pain (numerical rating scale, a scale from 0 to 10) by phone call after intradiscal infiltration of corticosteroids, according to the presence of associated root pains or not will be assessed. Patients will be asked if there is any root pain during the pre-inclusion consultation.
Time frame: at 1 month and 6 months
Assessement of pain reduction according to the co-existence of scoliosis or not.
The pain reduction and the co-existence of scoliosis will be assessed. The change in pain will be evaluated by NRS for pain (numeric rating scale, a scale from 0 to 10) by phone call after intradiscal infiltration of corticosteroids, according to the presence of associated scoliosis or not will be assessed. Scoliosis will be investigated by interviewing the patient and analyzing the patient's x-rays, performed as part of routine care prior to the pre-inclusion consultation. Scoliosis is any lateral spinal curvature with a Cobb angle \>10° on x-rays.
Time frame: at 1 month and 6 months
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Assessement of pain reduction according to the presence of signs of inter-somatic instability
The change in pain will be evaluated by NRS for pain (numeric rating scale, a scale from 0 to 10) by phone call after intradiscal infiltration of corticosteroids, according to the presence of signs of inter-somatic instability or not will be assessed. Signs of inter-somatic instability will be investigated by interviewing the patient and analyzing the patient's x-rays and MRI, performed as part of routine care prior to the pre-inclusion consultation. Intersomatic instability is defined as the anterior, posterior or lateral translational displacement of a vertebral body against another (more than 3 mm) on x-rays or MRI.
Time frame: at 1 month and 6 months
Assessement of pain reduction according to the presence of posterior articular osteoarthritis
The change in pain will be evaluated by NRS for pain (numeric rating scale, a scale from 0 to 10) by phone call after intradiscal infiltration of corticosteroids, according to the presence of posterior articular osteoarthritis or not will be assessed. Signs of posterior articular osteoarthritis will be investigated by interviewing the patient and analyzing the patient's x-rays and MRI, performed as part of routine care prior to the pre-inclusion consultation. Posterior articular osteoarthritis will be defined by the presence of bone protrusions, narrowing of joint space, effusion of the joint and periarticular inflammation on x-rays or MRI.
Time frame: at 1 month and 6 months
Assessement of pain reduction according to the muscle trophicity of the erector muscles of the lumbar spine
The change in pain will be evaluated by NRS for pain (numeric rating scale, a scale from 0 to 10) by phone call after intradiscal infiltration of corticosteroids, according to the presence of an atrophy of the erector muscles of the lumbar spine or not will be assessed. Signs of atrophy of the erector muscles of the lumbar spine will be investigated by interviewing the patient and analyzing the patient's MRI, performed as part of routine care prior to the pre-inclusion consultation. Atrophy of the erector muscles of the lumbar spine will be defined by the presence fat infiltration in erector muscles of the lumbar spine MRI.
Time frame: at 1 month and 6 months