狠狠撸

he literature was completed nction of surgery or a natural 24 although there is controver with an annual inc m 9 to 17% previous arthrodesis of the sp hy or myelopathy of a motion s sy surrounding the origins of ed that arthrodesis leads to i ould potentially cause a shift mined that five poor颅quality r we prefer to over this reason nsertion rather than during dr f fixation. this can occur dur teral mass screws do not have aker compared with co d under the posterior arch). t e strength of fixation weaker the cortical bone.12 for this over颅drill the posterior arch over颅drill the posterior