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Daniel K. Resnick, Tanvir F. Choudhri, Andrew T. Dailey, Michael W. Groff, Larry Khoo, Paul G. Matz, Praveen Mummaneni, William C. Watters III, Jeffrey Wang, Beverly C. Walters and Mark N. Hadley

21 reported that three-dimensional CT reconstruction may be more sensitive than two-dimensional CT reconstruction for the detection of pseudarthrosis. Siambanes and Mather 20 demonstrated that multiplanar CT imaging detected pseudarthrosis in patients who had undergone posterior lumbar interbody fusion compared with plain radiography that had suggested a solid fusion. Santos and colleagues 18 examined 32 patients who underwent anterior lumbar interbody fusion with carbon fiber cages. Plain static radiographs were interpreted to demonstrate fusion at 86% of the

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Daniel K. Resnick, Tanvir F. Choudhri, Andrew T. Dailey, Michael W. Groff, Larry Khoo, Paul G. Matz, Praveen Mummaneni, William C. Watters III, Jeffrey Wang, Beverly C. Walters and Mark N. Hadley

. Osseous fusion was present in 95% of patients in the PLIF  group & in 13% of the ALIF group. Small sample size, differing patient selection criteria, & large  “lost to FU” group limit value of study. Chitnavis, et al., 2001 III 50 PLIF patients w/ carbon fiber cages for DDD. In 40 patients (80%) w/ stand-alone PLIF, 10 w/ PSs. PS augmentation of carbon fiber cage PLIF may/may  Prolo scale. Fusion outcome based on established classification w/ dynamic x-rays. 2/3 of patients  not improve outcome or fusion rate

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Daniel K. Resnick, Tanvir F. Choudhri, Andrew T. Dailey, Michael W. Groff, Larry Khoo, Paul G. Matz, Praveen Mummaneni, William C. Watters III, Jeffrey Wang, Beverly C. Walters and Mark N. Hadley

deficit or permanent complication. This PLIF resulted in satisfactory outcome w/in short-term  or long-term FU. * ADL = activities of daily living; ALIF = anterior lumbar interbody fusion; CFC = carbon fiber cage; DH = disc herniation; discect = discectomy; facetect = facetectomy; FU = follow up; JOA = Japanese Orthopaedic Association; laminect = laminectomy; LBP = low-back pain; LOS = length of stay; MDH = midline DH; MRI = magnetic resonance imaging; ODI = Oswestry Disability Index; perc = percutaneous; PLIF = posterior LIF; PLL