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Posterior-only Instrumented Fusion for Treatment of Progressive Thoracolumbar Kyphosis in Mucopolysaccharidosis Bekmez S, Demirkiran G, Olgun D, Dede O,

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Presentation on theme: "Posterior-only Instrumented Fusion for Treatment of Progressive Thoracolumbar Kyphosis in Mucopolysaccharidosis Bekmez S, Demirkiran G, Olgun D, Dede O,"— Presentation transcript:

1 Posterior-only Instrumented Fusion for Treatment of Progressive Thoracolumbar Kyphosis in Mucopolysaccharidosis Bekmez S, Demirkiran G, Olgun D, Dede O, Yazici M

2 Introduction Progressive thoracolumbar kyphosis is a hallmark orthopaedic manifestation of MPS Recommended surgical treatment is circumferential spinal fusion The aim of the study is to report our experience with posterior-only instrumented fusion in MPS kyphosis

3 Patients and Methods Single institution Between 2008 and 2011 6 patients Demographic data, type of MPS, comorbidities were recorded

4 Radiographic Analyzes Apical vertebral height (AVH) Presence of any coronal plane deformity Fusion levels Local kyphosis angle (LKA) Proximal and distal junctional kyphosis (PJKA and DJKA)

5 Results MPS type 3 type VI 1 type I 1 type II 1 type IV Average age at surgery 6.6 years (range, 4 to 12) Average f/u 52.6 months (range, 44 to 64)

6 Results LKA 63.1° (preop.)  16.6° (postop.)  19.6° (last f/u) No neurological complication or implant failure Adjacent segment problems in 2 patients 1 PJK and 1 DJK

7 Case 1, 5 y.o., M

8 Case 2, 8 y.o., M, DJK

9 Conclusion Adjacent segment problems are not associated with type of fusion Poor bone disease Posterior-only instrumented fusion with pedicle screws in MPS kyphosis is safe and effective Its results appear to be comparable to those achieved with conventional circumferential fusion

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