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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Charcot Spine and Parkinson's Disease</title><author><name sortKey="Loriaut, Philippe" sort="Loriaut, Philippe" uniqKey="Loriaut P" first="Philippe" last="Loriaut">Philippe Loriaut</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Rozenberg, Sylvie" sort="Rozenberg, Sylvie" uniqKey="Rozenberg S" first="Sylvie" last="Rozenberg">Sylvie Rozenberg</name><affiliation><nlm:aff id="I2">Department of Rheumatology, Pitié-Salpêtrière Hospital, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Boyer, Patrick" sort="Boyer, Patrick" uniqKey="Boyer P" first="Patrick" last="Boyer">Patrick Boyer</name><affiliation><nlm:aff id="I3">Department of Orthopaedic Surgery, Bichat Claude Bernard Hospital, Paris Diderot University, 46 rue Henri Huchard, 75877 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Dallaudiere, Benjamin" sort="Dallaudiere, Benjamin" uniqKey="Dallaudiere B" first="Benjamin" last="Dallaudière">Benjamin Dallaudière</name><affiliation><nlm:aff id="I4">Department of Radiology, Bichat Claude Bernard Hospital, Paris Diderot University, 46 rue Henri Huchard, 75877 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Khiami, Frederic" sort="Khiami, Frederic" uniqKey="Khiami F" first="Frederic" last="Khiami">Frederic Khiami</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Sariali, Elhadi" sort="Sariali, Elhadi" uniqKey="Sariali E" first="Elhadi" last="Sariali">Elhadi Sariali</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Pascal Moussellard, Hugues" sort="Pascal Moussellard, Hugues" uniqKey="Pascal Moussellard H" first="Hugues" last="Pascal-Moussellard">Hugues Pascal-Moussellard</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25165591</idno><idno type="pmc">4140119</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4140119</idno><idno type="RBID">PMC:4140119</idno><idno type="doi">10.1155/2014/631346</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000339</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000339</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Charcot Spine and Parkinson's Disease</title><author><name sortKey="Loriaut, Philippe" sort="Loriaut, Philippe" uniqKey="Loriaut P" first="Philippe" last="Loriaut">Philippe Loriaut</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Rozenberg, Sylvie" sort="Rozenberg, Sylvie" uniqKey="Rozenberg S" first="Sylvie" last="Rozenberg">Sylvie Rozenberg</name><affiliation><nlm:aff id="I2">Department of Rheumatology, Pitié-Salpêtrière Hospital, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Boyer, Patrick" sort="Boyer, Patrick" uniqKey="Boyer P" first="Patrick" last="Boyer">Patrick Boyer</name><affiliation><nlm:aff id="I3">Department of Orthopaedic Surgery, Bichat Claude Bernard Hospital, Paris Diderot University, 46 rue Henri Huchard, 75877 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Dallaudiere, Benjamin" sort="Dallaudiere, Benjamin" uniqKey="Dallaudiere B" first="Benjamin" last="Dallaudière">Benjamin Dallaudière</name><affiliation><nlm:aff id="I4">Department of Radiology, Bichat Claude Bernard Hospital, Paris Diderot University, 46 rue Henri Huchard, 75877 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Khiami, Frederic" sort="Khiami, Frederic" uniqKey="Khiami F" first="Frederic" last="Khiami">Frederic Khiami</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Sariali, Elhadi" sort="Sariali, Elhadi" uniqKey="Sariali E" first="Elhadi" last="Sariali">Elhadi Sariali</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author><author><name sortKey="Pascal Moussellard, Hugues" sort="Pascal Moussellard, Hugues" uniqKey="Pascal Moussellard H" first="Hugues" last="Pascal-Moussellard">Hugues Pascal-Moussellard</name><affiliation><nlm:aff id="I1">Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</nlm:aff></affiliation></author></analytic><series><title level="j">Case Reports in Orthopedics</title><idno type="ISSN">2090-6749</idno><idno type="eISSN">2090-6757</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Charcot spine is rare condition whose association with Parkinson's disease (PD) has not been reported yet. The authors reported the cases of two patients with PD who developed Charcot spine. Both patients presented with a history of back pain and bilateral radicular leg pain. They had complete clinical and radiological assessment. Lumbar spine was involved in both patients. Clinical features and response to treatment were described. In the first case, circumferential fusion and stabilization were performed on the dislocated vertebral levels. A solid and stable fusion of the spine was obtained with satisfactory clinical outcome. Surgical treatment has been recommended to the other patient. In both cases, no other neurological etiology was found to account for Charcot spine. In conclusion, Charcot spine is associated with several neurological affections but has not previously been reported in association with Parkinson's disease.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Meyer, S" uniqKey="Meyer S">S Meyer</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Charcot, Jm" uniqKey="Charcot J">JM Charcot</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kronig, G" uniqKey="Kronig G">G Kronig</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Mcneel, Dp" uniqKey="Mcneel D">DP McNeel</name></author><author><name sortKey="Ehni, G" uniqKey="Ehni G">G Ehni</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Park, Y" uniqKey="Park Y">Y Park</name></author><author><name sortKey="Taylor, Jam" uniqKey="Taylor J">JAM Taylor</name></author><author><name sortKey="Szollar, Sm" uniqKey="Szollar S">SM Szollar</name></author><author><name sortKey="Resnick, D" uniqKey="Resnick D">D Resnick</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Brown, Cw" uniqKey="Brown C">CW Brown</name></author><author><name sortKey="Jones, B" uniqKey="Jones B">B Jones</name></author><author><name sortKey="Donaldson, Dh" uniqKey="Donaldson D">DH Donaldson</name></author><author><name sortKey="Akmakjian, J" uniqKey="Akmakjian J">J Akmakjian</name></author><author><name sortKey="Brugman, Jl" uniqKey="Brugman J">JL Brugman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sobel, Jw" uniqKey="Sobel J">JW Sobel</name></author><author><name sortKey="Bohlman, Hh" uniqKey="Bohlman H">HH Bohlman</name></author><author><name sortKey="Freehafer, Aa" uniqKey="Freehafer A">AA Freehafer</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wirth, Cr" uniqKey="Wirth C">CR Wirth</name></author><author><name sortKey="Jacobs, Rl" uniqKey="Jacobs R">RL Jacobs</name></author><author><name sortKey="Rolander, Sd" uniqKey="Rolander S">SD Rolander</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Barrey, C" uniqKey="Barrey C">C Barrey</name></author><author><name sortKey="Massourides, H" uniqKey="Massourides H">H Massourides</name></author><author><name sortKey="Cotton, F" uniqKey="Cotton F">F Cotton</name></author><author><name sortKey="Perrin, G" uniqKey="Perrin G">G Perrin</name></author><author><name sortKey="Rode, G" uniqKey="Rode G">G Rode</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Devlin, Vj" uniqKey="Devlin V">VJ Devlin</name></author><author><name sortKey="Ogilvie, Jw" uniqKey="Ogilvie J">JW Ogilvie</name></author><author><name sortKey="Transfeldt, Ee" uniqKey="Transfeldt E">EE Transfeldt</name></author><author><name sortKey="Boachie Adjei, O" uniqKey="Boachie Adjei O">O Boachie-Adjei</name></author><author><name sortKey="Bradford, Ds" uniqKey="Bradford D">DS Bradford</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Vialle, R" uniqKey="Vialle R">R Vialle</name></author><author><name sortKey="Mary, P" uniqKey="Mary P">P Mary</name></author><author><name sortKey="Tassin, J" uniqKey="Tassin J">J Tassin</name></author><author><name sortKey="Parker, F" uniqKey="Parker F">F Parker</name></author><author><name sortKey="Guillaumat, M" uniqKey="Guillaumat M">M Guillaumat</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Hoppenfeld, S" uniqKey="Hoppenfeld S">S Hoppenfeld</name></author><author><name sortKey="Gross, M" uniqKey="Gross M">M Gross</name></author><author><name sortKey="Giangarra, C" uniqKey="Giangarra C">C Giangarra</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Johnson, Jt" uniqKey="Johnson J">JT Johnson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Eloesser, L" uniqKey="Eloesser L">L Eloesser</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Brower, Ac" uniqKey="Brower A">AC Brower</name></author><author><name sortKey="Allman, Rm" uniqKey="Allman R">RM Allman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jones, Kb" uniqKey="Jones K">KB Jones</name></author><author><name sortKey="Mollano, Av" uniqKey="Mollano A">AV Mollano</name></author><author><name sortKey="Morcuende, Ja" uniqKey="Morcuende J">JA Morcuende</name></author><author><name sortKey="Cooper, Rr" uniqKey="Cooper R">RR Cooper</name></author><author><name sortKey="Saltzman, Cl" uniqKey="Saltzman C">CL Saltzman</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bourghli, A" uniqKey="Bourghli A">A Bourghli</name></author><author><name sortKey="Guerin, P" uniqKey="Guerin P">P Guérin</name></author><author><name sortKey="Vital, Jm" uniqKey="Vital J">JM Vital</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="case-report"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Case Rep Orthop</journal-id><journal-id journal-id-type="iso-abbrev">Case Rep Orthop</journal-id><journal-id journal-id-type="publisher-id">CRIOR</journal-id><journal-title-group><journal-title>Case Reports in Orthopedics</journal-title></journal-title-group><issn pub-type="ppub">2090-6749</issn><issn pub-type="epub">2090-6757</issn><publisher><publisher-name>Hindawi Publishing Corporation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25165591</article-id><article-id pub-id-type="pmc">4140119</article-id><article-id pub-id-type="doi">10.1155/2014/631346</article-id><article-categories><subj-group subj-group-type="heading"><subject>Case Report</subject></subj-group></article-categories><title-group><article-title>Charcot Spine and Parkinson's Disease</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Loriaut</surname><given-names>Philippe</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1">*</xref></contrib><contrib contrib-type="author"><name><surname>Rozenberg</surname><given-names>Sylvie</given-names></name><xref ref-type="aff" rid="I2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Boyer</surname><given-names>Patrick</given-names></name><xref ref-type="aff" rid="I3"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>Dallaudière</surname><given-names>Benjamin</given-names></name><xref ref-type="aff" rid="I4"><sup>4</sup></xref></contrib><contrib contrib-type="author"><name><surname>Khiami</surname><given-names>Frederic</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sariali</surname><given-names>Elhadi</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Pascal-Moussellard</surname><given-names>Hugues</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib></contrib-group><aff id="I1"><sup>1</sup>Department of Orthopaedic Surgery, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, 47 Boulevard de l'Hôpital, 75013 Paris, France</aff><aff id="I2"><sup>2</sup>Department of Rheumatology, Pitié-Salpêtrière Hospital, 47 Boulevard de l'Hôpital, 75013 Paris, France</aff><aff id="I3"><sup>3</sup>Department of Orthopaedic Surgery, Bichat Claude Bernard Hospital, Paris Diderot University, 46 rue Henri Huchard, 75877 Paris, France</aff><aff id="I4"><sup>4</sup>Department of Radiology, Bichat Claude Bernard Hospital, Paris Diderot University, 46 rue Henri Huchard, 75877 Paris, France</aff><author-notes><corresp id="cor1">*Philippe Loriaut: <email>philippeloriaut@hotmail.com</email></corresp><fn fn-type="other"><p>Academic Editor: Federico Canavese</p></fn></author-notes><pub-date pub-type="ppub"><year>2014</year></pub-date><pub-date pub-type="epub"><day>6</day><month>8</month><year>2014</year></pub-date><volume>2014</volume><elocation-id>631346</elocation-id><history><date date-type="received"><day>18</day><month>5</month><year>2014</year></date><date date-type="accepted"><day>15</day><month>7</month><year>2014</year></date></history><permissions><copyright-statement>Copyright © 2014 Philippe Loriaut et al.</copyright-statement><copyright-year>2014</copyright-year><license license-type="open-access"><license-p>This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><p>Charcot spine is rare condition whose association with Parkinson's disease (PD) has not been reported yet. The authors reported the cases of two patients with PD who developed Charcot spine. Both patients presented with a history of back pain and bilateral radicular leg pain. They had complete clinical and radiological assessment. Lumbar spine was involved in both patients. Clinical features and response to treatment were described. In the first case, circumferential fusion and stabilization were performed on the dislocated vertebral levels. A solid and stable fusion of the spine was obtained with satisfactory clinical outcome. Surgical treatment has been recommended to the other patient. In both cases, no other neurological etiology was found to account for Charcot spine. In conclusion, Charcot spine is associated with several neurological affections but has not previously been reported in association with Parkinson's disease.</p></abstract></article-meta></front><body><sec id="sec1"><title>1. Introduction</title><p>Charcot spine is a rare chronic disorder, characterized by progressive deformity, destruction, and severe instability of the spine. Repeated external forces associated with impaired defence mechanisms of the joints could be responsible for spinal injury. Various other terms have been used to describe this entity, including spinal neuroarthropathy, neuropathic spinal arthropathy, osteoarthropathy, neurotrophic joint, and neuroosteoarthropathy. This proliferation of terms probably reflects uncertainty about its pathogenesis [<xref rid="B1" ref-type="bibr">1</xref>].</p><p>Charcot first described neuropathic arthropathy occurring in tabetics patients and suggested that there was a causal relationship between spinal cord lesions and Charcot joints [<xref rid="B2" ref-type="bibr">2</xref>]. Kronig reported the first case of Charcot spine in a tabetic patient [<xref rid="B3" ref-type="bibr">3</xref>]. The thoracolumbar spine is the most common site affected and the lesion is often limited to one or two vertebrae [<xref rid="B4" ref-type="bibr">4</xref>]. Progressive deformation of the vertebral bodies leads to a kyphosis or kyphoscoliosis. Radiological features are quite characteristic [<xref rid="B5" ref-type="bibr">5</xref>]. Two types of neuropathic joints are described in the literature: hypertrophic and atrophic. The hypertrophic joint has massive new bone formation, osteophytes, osseous debris, and disruption of the articular surfaces. The atrophic form presents with osteopenia and osteolysis. The radiographic appearance is characterized by an extensive bone resorption without evidence of accompanying bone repair. Destruction coupled with massive bone formation may lead to subluxation of the vertebral body laterally, as well as disk spaces narrowing and ankylosis [<xref rid="B1" ref-type="bibr">1</xref>].</p><p>Many causes of neuropathic osteoarthropathy have been investigated including tabes dorsalis, spinal cord injuries, syringomyelia, leprosy, cord tumours, spinal tuberculosis, cerebrovascular accidents, diabetes, and alcoholic neuropathy (<xref ref-type="table" rid="tab1">Table 1</xref>) [<xref rid="B6" ref-type="bibr">6</xref>–<xref rid="B9" ref-type="bibr">9</xref>]. To our knowledge, no association with Parkinson's disease (PD) has yet been reported.</p><p>The purpose of this case report was to describe the clinical and radiological features of two patients with Parkinson's disease presenting with neuropathic spinal arthropathy.</p></sec><sec id="sec2"><title>2. Case Report 1</title><p>A 72-year-old man was diagnosed 12 years ago as suffering from idiopathic PD. He has been taking dopaminergic treatment with a fair symptomatic control. His past medical history was significant for coronaropathy, pacemaker, and hemochromatosis. At the age of 64, the patient started to complain of increasingly invalidating, chronic back pain during movement of the lower lumbar region. This back pain was progressively associated with bilateral radicular leg pain and weakness. Clinical examination revealed motor function impairment at level L4/L5 with a leg motor scale score of 3 out of 5. He first presented at an orthopaedic surgery department where he had undergone L3–L5 laminectomies for degenerative lumbar stenosis. Surgery had only a limited and temporary benefit. Indeed, the patient reported six months postoperatively low back and right radicular leg pain recurrence with foot drop. Motor function remained impaired with a marked hypoesthesia along L4 dermatome. Electromyography revealed right L4, L5, and S1 irritation.</p><p>Medical treatment and epidural cortisone injections remained unsuccessful over the years. Lumbocrural pain and neurological impairment were progressively associated with thoracolumbar kyphosis.</p><p>Three years postoperatively, the patient was referred to our institution. Extensive radiological assessment was realized with analysis of previous imaging compared to new ones. Plain radiographs revealed a combination of an extensive discovertebral destruction with L2 degenerative collapse associated with paravertebral hypertrophic ossifications. Lesions developed at the upper limit of the laminectomized area (Figures <xref ref-type="fig" rid="fig1">1</xref> and <xref ref-type="fig" rid="fig2">2</xref>). Dynamic X-ray imaging revealed the extent of the spinal instability. CT scan showed a severe lateral dislocation of the L2/L3 joint associated with a reduced local kyphosis angle (<xref ref-type="fig" rid="fig3">Figure 3</xref>).</p><p>The progressive onset of associated destructive and constructive radiological phenomena provided arguments for an osteoarthropathy and raised suspicions of Charcot spine. Firstly, investigations focused on differential diagnosis and etiological research. Blood tests and cultures including serologic test for syphilis were performed. There was no evidence of infection or an inflammatory syndrome. Nevertheless, the hypotheses of a chronic vertebral osteomyelitis or a tumoral process were explored. A CT-guided vertebral biopsy was consequently performed. Cultures proved negative. Histological examination revealed the presence of fibrous tissue with sequestered bone but no signs of malignancy. Screening for the HLA B27 gene was negative. Investigations concluded that the patient had a neurological osteoarthropathy with an isolated PD.</p><p>Further surgery was decided in order to decompress and stabilize the spine. The patient underwent decompression and transforaminal lumbar interbody fusion (TLIF). First laminectomy at L3 was performed; then, each L3/L4 nerve root was decompressed. Foraminotomy and bilateral facetectomy provided access to the L2/L3 intervertebral disc. A vacuum disc phenomenon was noted at this level. Discectomy was thus reduced to a minimum. Finally, disc space was replaced by intersomatic bone graft. The fusion from L1 to L4 was performed using pedicle screws, rods, and a posterolateral bone graft. The patient was placed in a thoracolumbosacral orthosis during 3 months. Afterwards, the patient's condition improved progressively. Three months postoperatively, he had a significant pain relief and complete weakness recovery. At the 5-year follow-up examination, clinical outcome was satisfactory and radiological assessment confirmed that the bony union was achieved and that a solid and stable fusion of the spine was obtained (<xref ref-type="fig" rid="fig4">Figure 4</xref>).</p></sec><sec id="sec3"><title>3. Case Report 2</title><p>A 62-year-old woman was diagnosed with PD about eight years ago. She received dopaminergic treatment and underwent deep brain stimulation five years ago which provided a significant improvement in her symptoms. Four years ago, she was referred to our department of rheumatology for a 2-year history of low back pain radiating down her buttock, the lateral side of the thigh, and the leg. Symptoms were predominant on the right side and were not responsive to a conservative analgesic treatment. The range of motion was quite limited. She had to stop her professional activity a few months after the onset since pain kept increasing. Physical examination revealed mild tenderness of the lower back, a positive Lasègue sign on the right leg. Jerks were active on both sides. Neither motor weakness nor hypoesthesia was detected. Comparing radiographs and CT scan images showed a progressive onset of destruction images of L4-L5 vertebral bodies associated with production of multiple bony fragments and leftward translation of L4 (Figures <xref ref-type="fig" rid="fig5">5</xref>, <xref ref-type="fig" rid="fig6">6</xref>, and <xref ref-type="fig" rid="fig7">7</xref>). Those elements led to the hypothesis of a Charcot spine. The same work-up as in case report 1 was thus conducted. Histological examination showed nonspecific bone necrosis without evidence of chronic vertebral infection or tumoral process. The patient received epidural transforaminal L4-L5 steroid injection under radioscopic guidance. Initially, she experienced a significant pain relief but symptoms recurred two months later. The patient was offered a surgical treatment but declined it. Symptomatic treatment was therefore pursued.</p></sec><sec id="sec4"><title>4. Discussion</title><p>A great polymorphism of initial clinical features of this disease is depicted in the literature [<xref rid="B1" ref-type="bibr">1</xref>, <xref rid="B4" ref-type="bibr">4</xref>, <xref rid="B8" ref-type="bibr">8</xref>, <xref rid="B14" ref-type="bibr">10</xref>–<xref rid="B16" ref-type="bibr">12</xref>]. Most patients initially presented with very common and unspecific symptoms, such as progressive back and leg pain and weakness. Besides, it turns out that patients reported a rather insidious onset and tolerated their symptoms for several years before seeking medical attention leading to a delay in diagnosis. Furthermore, these presentations may belong to a large panel of pathologies, making it difficult for the clinician to first suspect a neurological osteoarthropathic lesion.</p><p>In our study, both patients initially demonstrated particular clinical features, supporting first—and incorrect—diagnosis of degenerative lumbar stenosis. Imaging might also have been confusing as it depicted some features compatible with a degenerative etiology. This presentation was responsible for a misguided work-up and therapeutic management.</p><p>It should be noted that presentation in the first case probably differed from the second one due to surgical management. Later on, both patients presented more typical radiological images providing arguments for a neurological-related osteoarthropathy. Diagnosis was only reconsidered after, respectively, 8 and 4 years after the onset of symptoms.</p><p>There are two main theories describing the pathogenesis of neuropathic osteoarthropathy. The neurotraumatic theory holds that loss of sensation and repetitive trauma may be primary pathogenetic mechanisms for Charcot joint destruction [<xref rid="B10" ref-type="bibr">13</xref>, <xref rid="B11" ref-type="bibr">14</xref>]. It suggests that unrecognized trauma results in occult bone and joint injuries. In patients with sensory peripheral neuropathy, these injuries remain undetected, leading to hyperaemia, soft tissue swelling, and bone alteration. On the other hand, according to the neurovascular theory, an underlying vascular abnormality could be responsible for bone destruction as described in diabetes [<xref rid="B1" ref-type="bibr">1</xref>, <xref rid="B12" ref-type="bibr">15</xref>].</p><p>Recently, other investigators have suggested that Charcot's osteoarthropathy could involve abnormal bone metabolism and neuroregulation [<xref rid="B13" ref-type="bibr">16</xref>]. Several neural transmission ligands have been demonstrated to be in close spatial association with osteoblasts and osteoclasts. Further, receptors for these neural ligands are expressed on bone cells and administration of these neural transmission molecules has potent effects on bone cells. Neurotransmission impairment could thus be responsible for bone metabolism alteration in disorders of the central and peripheral nervous system.</p><p>Several reports have been published documenting the existence of this uncommon clinical entity [<xref rid="B14" ref-type="bibr">10</xref>–<xref rid="B16" ref-type="bibr">12</xref>] but this appears to be the first two cases associated with PD recorded in the literature. PD is one of the most common neurodegenerative diseases. It is characterized by clinical manifestations: stiffness, postural instability, and insensate vertebral joint microtraumatisms caused by movement disorders. Physiopathological features include altered bone metabolism and defective neuroosseous signal transmission.</p><p>This case report is also consistent with studies that emphasize that spine surgery in patients with PD is complex and may lead to several complications [<xref rid="B17" ref-type="bibr">17</xref>].</p><p>In conclusion, Charcot spine is associated with several neurological affections but has not previously been reported in association with Parkinson's disease. As its physiopathology is still unknown, this case report emphasizes that there could be a possible association between both conditions. However, we are not able to exclude the possibility of a simple coincidental phenomenon. 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The spinal canal was compromised with paravertebral hypertrophic ossifications (Case 1).</p></caption><graphic xlink:href="CRIOR2014-631346.003"></graphic></fig><fig id="fig4" orientation="portrait" position="float"><label>Figure 4</label><caption><p>CT scan at the 5-year followup confirming bony union achievement and a solid and stable fusion of the spine (Case 1).</p></caption><graphic xlink:href="CRIOR2014-631346.004"></graphic></fig><fig id="fig5" orientation="portrait" position="float"><label>Figure 5</label><caption><p>Lateral radiograph shows destruction of L4-L5 vertebral bodies producing multiple bony fragments (Case 2).</p></caption><graphic xlink:href="CRIOR2014-631346.005"></graphic></fig><fig id="fig6" orientation="portrait" position="float"><label>Figure 6</label><caption><p>Anteroposterior radiograph shows leftward translation of L4 (Case 2).</p></caption><graphic xlink:href="CRIOR2014-631346.006"></graphic></fig><fig id="fig7" orientation="portrait" position="float"><label>Figure 7</label><caption><p>Sagittal CT scan image showing bony destruction of L4 and L5 (Case 2).</p></caption><graphic xlink:href="CRIOR2014-631346.007"></graphic></fig><table-wrap id="tab1" orientation="portrait" position="float"><label>Table 1</label><caption><p>Diseases associated with Charcot's osteoarthropathy.</p></caption><table frame="hsides" rules="groups"><tbody><tr><td align="left" rowspan="1" colspan="1">Syphilis (tabes dorsalis)</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Leprosy</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Diabetes</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Spina bifida</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Congenital insensitivity to pain</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Syringomyelia</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Cerebral palsy</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Spinal cord injury</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Spinal cord compression</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Peripheral nerve injuries</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Alcoholism</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Amyloidosis</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Amyotrophic lateral sclerosis</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Arachnoiditis</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Cerebrovascular accident</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Cord trauma/tumors</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Elephantiasis</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Hereditary insensitivity to pain</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Hereditary sensory radicular neuropathy</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Lead poisoning</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Meningomyelocele</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Multiple sclerosis</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Pernicious anemia</td><td align="center" rowspan="1" colspan="1"> </td></tr><tr><td align="left" rowspan="1" colspan="1"> Yaws</td><td align="center" rowspan="1" colspan="1"> </td></tr></tbody></table></table-wrap></floats-group></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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