Atlanto-occipital dislocation;. Zagazig medical journal Epidemiology of Road traffic accidents casualities; Zagazig medical journal Skeletal Injuries in Road traffic accidents ;zagazig medical journal Hospital work load of the surgical department in road traffic acident casualities. Zagazig medical journal Fractured upper tibial condyle; Al Razi Medical Journal The development & design of benha university External bone fixator and Bone lengthening apparatus; Proceedings of benha EOA Congress Epidural injection for acute lumbar disc herniation; Proceedings of benha EOA Congress Injection for Carpal Tunnel Syndrome ; Combined meeting of the east medeteranian hand group & international hand association Infection after intra medullary nailing of the femure ; Proceedings of benha EOA Congress Clinico pathological & Radiological grading for Infection after intra medullary nailing of the femure; Proceedings of benha EOA Congress Prognostic features of malignancy in chondrosarcoma; Proceedings of benha EOA Congress kinamatics of the wrist ; Combined meeting of the east medeteranian hand group & international hand association Total elbow replacement; Proceedings of benha EOA Congress comparative study of different techniques of upper tibal osteotomy ; Proceedings of benha EOA Congress Arthroscopic knee wash in osteoarhrosis ; Proceedings of benha EOA Congress Arthroscopic knee wash in osteoarhrosis ; Proceedings of benha EOA Congress Saggital patellar osteotomy in tratment of patello femoral osteo arthrosis. Proceedings of applied sciences , Zagazig university Arthroscopic evaluation of results of different types of upper tibial osteotomy ; Proceedings of benha EOA Congress Epidemiology of Road traffic accidents in Qalubeia & Northern Cairo ; Proceedings of benha EOA Congress The value of epidural injection & exercise programs in treatment of lumbosciatic syndrome. Epidemiological study of scoliosis in school age children in Qalubeia. Proceedings of Benha EOA Congress Painful Pes Anserinus Syndrome.; Cairo E.O.A.Meeting Case Report of Abrasion Arthroplasty for Osteonecrosis following local injection of steroids.; Cairo E.O.A. Meeting The Use of Kazem Bone Lengthening device.; Cairo E.O.A Meeting The Oriental Finger Clicking Sign for the diagnosis of Carpal Tunnel Syndrome."A new sign"; Cairo E.O.A. Meeting Evaluation of Kazem sign in Carpal tunnel Syndrome; Izmer Combined International Hand Congress Comparative study between conservative & Operative Treatment for Upper cervical injuries."Gold Medal" ; Alex. International E.O.A. Congress Comparative study using different techniques for upper tibial osteotomy for treatment of Gonarthrosis; E.O.A International Congress Abrasion Arthroplasty for Gonarthrosis; Alex. E.O.A international Congress Computerised decision support system for Patello-femoral Joint Affections; Alex E.O.A. Congress Artificial- Intelligence Computer program for decision support in Low Back Pain; Alex. E.O.A. Congress Tumoral Calcinosis:Cairo International E.O.A. Congress .Cairo, Egypt