Algo K Specific Manual Therapy for Sub Acute Low Back Pain With Radicular Symptoms

Inclusion Criteria: * Adults 18 65 y o * Sub acute low back pain (7 days - 3 months) with irradiation to one lower limb, pain 3 10/10 * Mechanically responsive pain * ODI \> 20 % and \< 80 % * Prescription ≥ 12 physiotherapy sessions (or un specified) * Able to complete 12 sessions in ≤ 60 days * Affiliated to French social security * Signed informed consent Exclusion Criteria: * Suspicion or history of serious pathology (cancer, systemic inflammatory disease, etc.) * Main complaint other than low back pain with irradiation * Prior spine or hip surgery (no time limit) / thoraco abdominal surgery \< 3 y * Central Sensitization Inventory ≥ 37 * HAD anxiety or depression sub score ≥ 8 * Planned lumbar infiltration during follow up * Pregnancy or breastfeeding * Legal protection (guardianship, custody, imprisonment)