Anesthesia Department of Donka National Hospital Conakry Guinea;
Anesthesia Department of Donka National Hospital Conakry Guinea;
Anaesthesia Department of the Ignace Deen National Hospital Conakry Guinea;
Anesthesia Department of Donka National Hospital Conakry Guinea;
Orthopaedics Department of the Ignace Deen National Hospital Conakry Guinea;
Lidocaine; Ropivacaine; Resources-Limited Country; Guinea;