TY - BOOK AU - John Atef Hanna AU - Ahmed Morrah , AU - Hany Mohammady , AU - Wael Koptan , TI - Recent trends in the surgical repair of spondylolysis / PY - 2009/// CY - Cairo : PB - John Atef Hanna , KW - Repair KW - Spondylolisthesis KW - Spondylolysis N1 - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Orthopedic Surgery; Issued also as CD N2 - Spondylolysis is a fatigue fracture in the pars interarticularis due to repetitive mechanical stresses on the spine.Its occurs in about 5-6% of the population and young people are more likely to develop spondylolysis.Spondylolysis casuses low back pain.Investigations inclde plain X- rays computed tomography SPECT and MRI.Treatment patterns include conservative treatment Buck`s screw Morscher`s hook Scott`s wiring techniques and cable-screw construct.In all these techniques bone graft is used ER -