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Primary lumbosacral stability after open posterior and endoscopic anterior fusion with interbody implants : A roentgen stereophotogrammetric analysisPAPE, Dietrich; ADAM, Frank; FRITSCH, Ekkehard et al.Spine (Philadelphia, PA. 1976). 2000, Vol 25, Num 19, pp 2514-2518, issn 0362-2436Article

Therapeutic Effect of Intrathecal Morphine After Posterior Lumbar Interbody Fusion Surgery : A Prospective, Double-Blind, Randomized StudyZIEGELER, Stephan; FRITSCH, Ekkehard; BAUER, Clemens et al.Spine (Philadelphia, PA. 1976). 2008, Vol 33, Num 22, pp 2379-2386, issn 0362-2436, 8 p.Article

Lumbosacral stability of consolidated anteroposterior fusion after instrumentation removal determined by roentgen stereophotogrammetric analysis and direct surgical explorationPAPE, Dietrich; FRITSCH, Ekkehard; KELM, Jens et al.Spine (Philadelphia, PA. 1976). 2002, Vol 27, Num 3, pp 269-274, issn 0362-2436Article