Yannick Canton Kessely - MD, Neurosurgeon, Grand Yoff Hospital, Dakar, Senegal
Ibrahima Tine - MD, Neurosurgeon, Princioal Hosoital, Dakar, Senegal
Maguette Gaye Sakho - MD, Neurosurgeon, Assistant Professor, Grand Yoff Hospital, Dakar, Senegal
Maguette Mbaye - MD, Neurosurgeon, Assistant Professor, Fann Hospital, Dakar, Senegal

Background & Aim: Conjoined nerve root is defined as two adjacent nerve roots that share a common dural envelopeat some points during their course from the thecal sac. This study reports our experience of conjoined roots involvingthree cases in Dakar.Methods & Materials/Patients: This is a consecutive study from 2013 to 2015 involving patients supported for discherniation and who have presented conjoined nerve root anomalie s.Results: Three patients aged 32, 35 and 55 including two men have been concerned. Clinical analysis was done onsciatica with neuropathic occurrences in one case and lumbosciatica in two cases. The Lasegue sign was present in twopatients at 45°. All three patients benefited a lumbar computerized tomography (CT scan) highlighting a degenerativedisc disease with two in L5S1 space and one in L4L5 space. The imaging has not objectified radicular emerginganomalies. MRI objectified only one big root. A surgical root decompression was realized through interlaminardiscectomy approach; foraminotomy and full laminectomy enabling diagnosis in intraoperative period. The evolutionwas favourable in all three cases with full recession of sympto matology.Conclusion: This study is the first Senegalese series on the lumbo-sciatica by anomaly of root emergence and highlightsespecially the difficulties for the diagnosis of these anomalies like other sub-Saharan African countries where expansionof MRI for the diagnosis is low, and still very expensive. MRI provides guidance signs and a large root appearance canwarn about the existence of these anomalies. A good root release improves the symptoms.

Conjoined roots; MRI; Surgery