Vladimir Mikhailovich Bechterew

Vladimir Mikhailovich Bechterew, MD (January 20, 1857 [O.S. January 8] – December 24, 1927)—frequently recorded in Western medical literature as Vladimir Bekhterev or v. Bechterew—was a preeminent Russian neurologist, neuroanatomist, psychiatrist, and neuropathologist whose seminal 1892 and 1893 clinical descriptions of progressive spinal ankylosis with marked kyphotic curvature immortalized his name in “Bechterew’s disease” (Morbus Bechterew / ankylosing spondylitis / spondylitis ankylopoetica). Academician, Active State Councillor, and Major General of the Imperial Russian Medical Corps, Bechterew systematically mapped the conduction pathways of the central nervous system, discovered the superior vestibular nucleus (Bechterew’s nucleus), described the eponymous Bechterew-Mendel and Bechterew-Jacobsohn reflexes, founded the pioneering St. Petersburg Psychoneurological Institute, and shaped modern objective psychology and reflexology.

1. The Shoulders of Giants: Historical Context & Significance

Modern spine surgeons, adult reconstructive surgeons, and rheumatologists operating in an era of biologic targeted disease-modifying antirheumatic therapies, computerized sagittal balance planning, and multi-segmental pedicle subtraction osteotomies stand upon diagnostic foundations constructed during the late nineteenth century. Prior to the systematic clinical and pathological investigations of Vladimir Mikhailovich Bechterew, severe stiffening and progressive kyphotic deformation of the human vertebral column represented a diagnostic enigma. For centuries, progressive spinal rigidity accompanied by curvature was almost universally conflated with osseous tuberculosis, specifically tuberculous spondylitis or Pott’s disease. When destructive caseation, gibbus formation, and cold abscesses were conspicuously absent, clinicians resorted to vague diagnostic rubrics such as chronic rheumatic arthritis, arthritis deformans of the spine, or senile vertebral ankylosis.

“If I have seen further, it is by standing on the shoulders of giants.”

Sir Isaac Newton (1675) / Bernard of Chartres

Isolated anatomical specimens exhibiting extensive spinal fusion had been observed by earlier investigators. In 1691 and 1693, the Irish physician Bernard Connor published observations on an excavated skeleton found in a French churchyard that demonstrated total synostosis of the vertebral column, sacrum, and ribs into a continuous osseous sheath. However, Connor viewed the specimen as a congenital monstrosity rather than the consequence of a defined systemic acquired disease. During the early nineteenth century, British surgeon Benjamin Travers and Irish physician Robert Adams documented occasional instances of rigid spinal columns in patients afflicted with severe chronic rheumatic affections. Nevertheless, the prevailing medical consensus lacked the diagnostic acumen to isolate a distinct non-tuberculous, systemic inflammatory disorder targeting the axial skeleton from peripheral rheumatoid arthritis and destructive infectious spondylitis.

Bechterew achieved the decisive intellectual breakthrough between 1892 and 1893. While serving as Professor and Chair of Psychiatry at Kazan Imperial University, Bechterew presented a series of meticulously documented clinical cases to the Kazan Society of Physicians in 1892, published in the Russian medical journal Vrach, and followed in 1893 by his definitive German monograph in the Neurologisches Centralblatt entitled “Steifigkeit der Wirbelsäule und ihre Verkrümmung als besondere Erkrankungsform” (“Stiffness of the spine and its curvature as a specific disease entity”). Bechterew demonstrated that this condition was an autonomous, chronic, progressive ossifying process of the vertebral column. He emphasized its distinctive clinical features: ascending stiffness of the spine, progressive fixed cervicothoracic and thoracic kyphosis, flattening of the lumbar lordosis, severe impairment of respiratory excursion due to costovertebral ankylosis, and prominent neurological radiculopathy caused by compression of spinal nerve roots within narrowed intervertebral foramina.

Bechterew’s clinical delineation occurred alongside contemporaneous European observations that formed the historic triad of axial spondyloarthritis. In 1897, the German internist Adolph von Strümpell in Leipzig published descriptions of chronic spinal ankylosis, noting that the condition could also involve the proximal root joints of the extremities, particularly the hips and shoulders. One year later, in 1898, the French neurologist Pierre Marie and his student André Léri at the Salpêtrière in Paris published their landmark treatise on spondylose rhizomélique (“rhizomelic spondylosis,” from the Greek rhiza for root and melos for limb), emphasizing symmetrical ankylosis of the spine accompanied by progressive bony fusion of the hip and shoulder girdles.

A vital historical distinction distinguished Bechterew’s perspective from that of Strümpell and Marie. Whereas the French and German schools focused primarily on peripheral rhizomelic joint involvement, Bechterew concentrated on the primary axial manifestation. He documented the ascending pattern of spinal rigidity, the profound fixed kyphotic deformity that forced the patient’s gaze toward the ground, and the severe neurogenic root symptoms, including paraspinal muscle wasting and lancinating intercostal neuralgia. On the European continent, particularly in Germany, Austria, Russia, and Scandinavia, the condition became known as Morbus Bechterew (Bechterew’s disease). In Anglo-American literature, it was designated ankylosing spondylitis, Marie-Strümpell disease, or Bechterew-Marie-Strümpell spondylitis. Bechterew’s insistence on identifying an autonomous non-tuberculous axial entity laid the clinical framework for modern axial spondyloarthritis, providing the diagnostic foundation that enables modern surgeons and clinicians to prevent catastrophic spinal fractures, manage the compromised airway, and reconstruct devastating sagittal plane deformities.

2. Early Life, Formative Education & Career Milestones

Education and Formative Surgical Training

Vladimir Mikhailovich Bechterew was born on January 20, 1857 [O.S. January 8] in the rural village of Sorali, situated in the Yelabuzhsky District of the Vyatka Governorate within the Russian Empire (the village was subsequently renamed Bekhterevo in his honor, located in modern-day Tatarstan). He was the youngest of three sons born to Mikhail Pavlovich Bekhterev, an impoverished district police official of modest civil collegiate rank, and Maria Mikhailovna (née Medvedeva), the educated daughter of a titular councillor. In 1865, when Vladimir was barely eight years old, his father succumbed to pulmonary tuberculosis. The family was plunged into severe financial distress, forcing his mother to relocate the household to the provincial capital of Vyatka (now Kirov) to secure an education for her sons. Reared amidst financial austerity, young Bechterew attended the Vyatka gymnasium, displaying exceptional academic brilliance, self-discipline, and a passion for natural sciences.

In 1873, at the exceptionally youthful age of sixteen, Bechterew completed his gymnasium studies early and travelled to the imperial capital of St. Petersburg. He sat for the demanding competitive entrance examinations of the Imperial Medico-Surgical Academy (renamed the Imperial Military Medical Academy in 1881) and gained admission. The intense intellectual and physical demands of his early medical studies, combined with severe material deprivation, triggered an acute episode of reactive depression and neurasthenia during his second year of training. Bechterew sought treatment in the psychiatric clinic directed by Jan Lucjan Mierzejewski (Ivan Pavlovich Merzheyevsky, 1838–1908), an internationally renowned Polish-Russian neuropathologist and psychiatrist. Mierzejewski not only guided young Bechterew through his emotional crisis but also recognized the young student’s brilliant analytical mind, inviting him to join his research laboratory. This formative encounter established Bechterew’s lifelong commitment to the study of neuropathology, cerebral localization, and the functional interplay between somatic and psychiatric disease.

In 1877, while in his final year of medical school, the Russo-Turkish War erupted. Bechterew volunteered as a medical student with a Russian Red Cross military detachment, serving in the Danube theatre of operations under the direction of surgeon Nikolai Ivanovich Pirogov’s disciples. In the military encampments of Bulgaria and Romania, Bechterew confronted the brutal realities of war surgery, battlefield trauma, dysentery, and epidemic typhus. He contracted typhus during his service, barely surviving the illness. This battlefield experience deepened his practical clinical acumen, instilled an unshakeable resilience, and provided him with firsthand clinical knowledge of systemic inflammatory disorders and post-infectious neurological syndromes.

Following his return to St. Petersburg, Bechterew graduated with high honors from the Medico-Surgical Academy in 1878. Mierzejewski immediately appointed him as an assistant physician and resident in the Academy’s Department of Nervous and Mental Diseases. Bechterew embarked on an exhaustive series of neuroanatomical dissections and clinical investigations. In 1881, at the age of twenty-four, he successfully defended his doctoral dissertation entitled Experience of the Clinical Investigation of Body Temperature in Certain Forms of Mental Disease (Opyt klinicheskogo issledovaniya temperatury tela pri nekotorykh formakh dushevnykh zabolevaniy), earning his Doctor of Medicine (MD) degree and appointment as a Privatdozent.

In recognition of his scientific productivity, the Imperial Military Medical Academy awarded Bechterew a prestigious two-year European traveling fellowship from 1884 to 1885. This fellowship allowed him to study at the premier neurological and physiological institutes of Western Europe. In Leipzig, Bechterew worked in the physiological psychology laboratory of Wilhelm Wundt, mastering rigorous experimental methods, psychophysical instrumentation, and objective reaction-time measurements. Simultaneously, he collaborated with neuroanatomist Paul Flechsig in Leipzig, utilizing Flechsig’s myelogenetic method to trace the developmental myelination of fetal and neonatal nerve tracts. Through this work, Bechterew mapped several previously uncharacterized tracts in the human spinal cord, brainstem, and cerebral peduncles, including the tractus tegmentalis centralis and ascending spinal pathways. In Berlin, he studied electrophysiology under Emil du Bois-Reymond and attended clinical neurological rounds directed by Carl Westphal at the Charité Hospital. In Paris, Bechterew studied at the Hôpital de la Salpêtrière under Jean-Martin Charcot, absorbing Charcot’s clinical demonstrations of hysteria, hypnosis, tabes dorsalis, amyotrophic lateral sclerosis, and organic neurological semiotics. Finally, in Vienna, he refined his neuroanatomical investigations under the guidance of Theodor Meynert. This extraordinary European tour established Bechterew as a neuroscientist of international stature.

Academic Appointments and Clinical Leadership

In 1885, upon concluding his European travels at the age of twenty-eight, Bechterew was appointed Professor and Chair of Psychiatry at Kazan Imperial University. During his eight-year tenure in Kazan (1885–1893), Bechterew transformed the university into an international center of neuroscientific innovation. In 1885, he established the first experimental psychology laboratory in the Russian Empire, designing specialized instruments to quantify motor reflexes, sensory thresholds, and autonomic responses. In 1892, he founded the Kazan Society of Neuropathologists and Psychiatrists, and in 1893, he launched its official scientific journal, Nevrologichesky Vestnik (Neurological Bulletin), which he edited for over two decades. It was during these fertile Kazan years that Bechterew made his seminal observations on chronic spinal stiffening, examining patients suffering from progressive spinal ankylosis, fixed kyphosis, and severe radicular pain. These clinical findings culminated in his historic 1892 presentation to the Kazan Society of Physicians and his landmark 1893 monograph in the Neurologisches Centralblatt.

In 1893, following the retirement of his mentor Mierzejewski, the faculty of the Imperial Military Medical Academy in St. Petersburg unanimously elected Bechterew to the prestigious Chair of Nervous and Mental Diseases. Returning to the imperial capital, Bechterew embarked on a twenty-year period of clinical, academic, and administrative leadership. He fundamentally reorganized the department, establishing dedicated clinical pavilions for neurology and psychiatry, microscopic neuropathology laboratories, and a specialized neurosurgical operating theater. Recognizing that organic disorders of the brain and spine required direct operative intervention, Bechterew recruited the brilliant surgeon Ludvig Pussep (1875–1942). Together, Bechterew and Pussep established one of the world’s earliest organized neurosurgical clinics, performing pioneering procedures for intracranial tumors, spinal cord compression, syringomyelia, and trigeminal neuralgia.

During his tenure at the Military Medical Academy, Bechterew authored monumental neuroanatomical texts that became international reference standards. His two-volume treatise, Conduction Paths of the Brain and Spinal Cord (1896–1898), synthesized decades of tract-tracing investigations and earned him the prestigious Karl Ernst von Baer Prize from the Imperial Russian Academy of Sciences. This was followed by his seven-volume encyclopaedic work, Fundamentals of Brain Functions (1903–1907), which comprehensively detailed the functional localization of the cerebral cortex, subcortical nuclei, and spinal cord pathways.

In 1907, Bechterew achieved his crowning institutional vision: the founding of the St. Petersburg Psychoneurological Institute (subsequently renamed the V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology). Conceived as an autonomous multidisciplinary institution, the Institute unified neurology, psychiatry, neurosurgery, experimental psychology, sociology, and criminal anthropology. Under Bechterew’s direction as its founding director, the Institute educated thousands of physicians and scientists and championed social hygiene and alcohol rehabilitation. Bechterew was elevated to the rank of Active State Councillor and Major General in the Imperial Russian Medical Corps, securing his status as an intellectual titan of late Imperial and early Soviet medicine.

Bechterew’s life concluded under tragic and politically fraught circumstances in December 1927. At the age of seventy, while attending the First All-Russian Congress of Neurologists and Psychiatrists in Moscow, Bechterew was urgently summoned to the Kremlin on December 22 to perform a medical consultation on Joseph Stalin. Stalin was seeking evaluation for a physical ailment alongside progressive neuropsychiatric symptoms. Following a detailed examination, Bechterew returned to the medical congress. Historical accounts preserved by his family, colleagues, and contemporaries document that Bechterew remarked to associates that he had examined an individual suffering from “severe paranoia” (or “grave paranoia”). Later that evening, after dining at a Moscow restaurant or attending a theatre performance, Bechterew was stricken by acute, fulminant gastrointestinal illness. He deteriorated precipitously over the subsequent twenty-four hours and died on December 24, 1927. The Soviet authorities officially declared his cause of death as food poisoning caused by spoiled canned goods. However, the immediate removal of his brain for preservation at the Moscow Brain Institute, the absence of an independent forensic postmortem toxicology evaluation, and his rapid cremation fueled enduring, historically supported conclusions that Bechterew was poisoned by the Soviet security apparatus to silence his psychiatric diagnosis of Stalin.

3. Core Orthopaedic Breakthroughs, Eponymous Signs & Innovations

Vladimir Mikhailovich Bechterew made seminal, enduring contributions that bridged clinical neurology, functional neuroanatomy, neuropathology, and musculoskeletal medicine. His exhaustive clinical acumen, combined with rigorous anatomical dissection, enabled him to identify distinct pathological entities and semiotic signs that remain integral to modern clinical practice.

Hallmark Anatomical, Diagnostic and Operative Contributions

• Bechterew’s Disease (Morbus Bechterew / Ankylosing Spondylitis / Spondylitis Ankylopoetica): The original clinical and neuropathological characterization of a chronic, non-tuberculous, progressive ankylosing inflammatory disorder of the vertebral column. First presented to the Kazan Society of Physicians in 1892 and published in Vrach (1892) and Neurologisches Centralblatt (1893), Bechterew identified the triad of ascending spinal rigidity, fixed thoracic and cervicothoracic kyphosis (“poker spine”), flattening of lumbar lordosis, severe limitation of respiratory chest expansion, and excruciating radicular neuralgia resulting from mechanical compression of spinal nerve roots in narrowed intervertebral foramina.
• Superior Vestibular Nucleus of Bechterew (Nucleus vestibularis superior): The landmark neuroanatomical identification of the dorsal vestibular nucleus situated in the rostral pontine tegmentum and floor of the fourth ventricle. Receiving primary sensory afferents from the cristae ampullares of the semicircular canals, Bechterew’s nucleus projects ascending axons through the medial longitudinal fasciculus (MLF) to the oculomotor (CN III), trochlear (CN IV), and abducens (CN VI) nuclei, orchestrating the vestibulo-ocular reflex (VOR) and vertical gaze stability.
• Bechterew-Mendel Reflex (Cuboid-Digital Reflex / Dorsomedial Foot Reflex): A pathological neurological sign elicited by percussion of the dorsolateral aspect of the foot over the cuboid bone or anterior tarsus, producing paradoxical plantar flexion and abduction of the lesser toes (second through fifth digits). An analogue of the Babinski response, it serves as a sensitive indicator of upper motor neuron corticospinal tract dysfunction (eponym shared with German neurologist Kurt Mendel).
• Bechterew-Jacobsohn Reflex (Radius-Finger Reflex / Brachioradial-Digital Reflex): An upper-extremity pyramidal tract reflex elicited by percussing the dorsal surface of the distal radius at the insertion of the brachioradialis tendon, evoking rapid, involuntary hyperflexion of the digits, wrist, and thumb. The sign indicates cervical spondylotic myelopathy or pyramidal tract disinhibition at the C7–C8 cord level (eponym shared with German neurologist Louis Jacobsohn-Lask).
• Founding of the St. Petersburg Psychoneurological Institute & Objective Reflexology: The establishment in 1907 of the world’s first comprehensive scientific center integrating neurosurgery, neuropathology, clinical neurology, psychiatry, and experimental psychology, coupled with Bechterew’s formulation of “Reflexology”—the objective, stimulus-response study of human neuropsychological activity based on quantifiable physiological reactions.

Bechterew’s 1892 and 1893 monographs fundamentally altered the medical understanding of spinal rigidity. Prior to his clinical delineations, patients with progressive spinal stiffening were commonly assumed to suffer from atypical osseous tuberculosis or terminal rheumatoid arthritis. Bechterew examined patients who presented with an insidious, painless or mildly painful stiffening of the spine that inexorably ascended from the lumbar or thoracic spine to the cervical region. He documented how the spinal column progressively lost its physiological curvatures: the lumbar lordosis was completely erased, while the thoracic and cervical spine developed an exaggerated, rigid, fixed kyphosis. In advanced stages, the patient’s head was held rigidly flexed forward, with the chin positioned close to or resting directly upon the sternum (“chin-on-chest” deformity), forcing the gaze permanently toward the floor and rendering normal horizontal sight impossible.

In 1899, Bechterew published his landmark pathological-anatomical investigation in the Deutsche Zeitschrift für Nervenheilkunde entitled “Neue Beobachtungen und pathologisch-anatomische Untersuchungen über Steifigkeit der Wirbelsäule” (“New observations and pathological-anatomical investigations on stiffness of the spine”). In this work, Bechterew reported detailed postmortem dissections of afflicted patients, providing microscopic and macroscopic proof of the underlying disease process. He demonstrated that the primary pathology did not consist of tuberculous caries, caseous necrosis, or primary vertebral body collapse. Instead, he proved that the condition was driven by a chronic ossifying process targeting the soft-tissue ligamentous and articular structures of the spinal column.

Modern musculoskeletal pathology has fully corroborated Bechterew’s original anatomical deductions. The primary pathological hallmark of Morbus Bechterew is enthesitis: chronic lymphocytic and plasmacytic inflammation localized to the entheses, the anatomical sites where ligaments, tendons, joint capsules, and the anulus fibrosus insert into cortical bone. In the axial skeleton, this inflammatory cascade begins at the insertion of the outer lamellae of the anulus fibrosus into the anterior and lateral corners of the vertebral bodies. The resulting localized inflammatory erosions appear on early spinal radiographs as the classic “shiny corners” or Romanus lesions. As the active inflammation subsides, reparative chondroid metaplasia and osteoblast recruitment drive endochondral ossification. Thin, gracile, vertically oriented bony outgrowths—syndesmophytes—arise from the vertebral edges, bridging adjacent vertebral bodies across the intervertebral disc spaces.

Simultaneously, extensive ossification engulfs the anterior longitudinal ligament (ALL), the posterior longitudinal ligament (PLL), the interspinous and supraspinous ligaments, and the ligamenta flava. On anteroposterior spinal radiographs, ossification of the interspinous and supraspinous ligaments produces a dense central radiopaque vertical line known as the “dagger sign,” while concurrent ossification of the zygapophyseal joint capsules creates the bilateral “trolley track sign.” Synovial inflammatory destruction and ankylosis simultaneously obliterate the bilateral zygapophyseal (facet) joints, converting the multi-segmented, flexible spinal column into a continuous, rigid, brittle tubular column of bone: the pathognomonic “bamboo spine” (spondylitis ankylopoetica).

Bechterew recognized that the ossifying process was not restricted to the vertebral column alone but extended into the thoracic cage. Ankylosis inexorably overtakes the costovertebral and costotransverse articulations, as well as the manubriosternal synchondrosis. This circumferential thoracic fusion fixes the rib cage in an expiratory position, severely curtailing thoracic cage compliance. Whereas a healthy adult exhibits a chest expansion exceeding 5 cm measured at the fourth intercostal space during maximal inspiration, patients with advanced Morbus Bechterew demonstrate chest expansion of less than 2.5 cm, and frequently less than 1 cm. Consequently, the patient becomes entirely dependent on diaphragmatic excursion for ventilation, rendering the respiratory system exquisitely vulnerable to restrictive pulmonary insufficiency and hypoventilation.

One of Bechterew’s most profound clinical insights was his explanation of the agonizing neurological symptoms that plagued his patients. Unlike Pierre Marie, who focused on peripheral joint involvement, Bechterew was a trained neuropathologist who recognized that spinal ankylosis produced profound neural compression. He observed that patients frequently suffered from severe lancinating intercostal neuralgia, girdle-like dysesthesias encircling the thorax and abdomen, and progressive atrophy of the paraspinal and intercostal musculature. Through postmortem examination, Bechterew demonstrated that as new bone formed across the zygapophyseal joints and the posterior borders of the vertebral bodies, the intervertebral neural foramina underwent concentric circumferential stenosis. The exiting dorsal and ventral spinal nerve roots were mechanically compressed and irritated by osseous overgrowth, producing radiculopathy, chronic neuropathic pain, and secondary muscular denervation.

In modern rheumatology and orthopaedic surgery, the entity characterized by Bechterew is recognized as the prototype of axial spondyloarthritis. Molecular genetics has demonstrated a profound association with the human leukocyte antigen HLA-B27, a major histocompatibility complex (MHC) class I molecule present in over 85% to 90% of Caucasian patients with ankylosing spondylitis. Aberrant HLA-B27 heavy-chain misfolding, endoplasmic reticulum stress, and activation of the interleukin-23 (IL-23) and interleukin-17 (IL-17) immune axis, alongside elevated tumor necrosis factor-alpha (TNF-α), fuel the persistent enthesial inflammation and paradoxical new bone formation. Modern diagnostic rubrics, including the modified New York criteria (1984) and the Assessment of SpondyloArthritis international Society (ASAS) criteria (2009), remain grounded in the cardinal clinical, radiographic, and pathological manifestations first documented by Vladimir Mikhailovich Bechterew.

4. Master Class Pro-Tip

1. Biomechanical Vulnerability & The “Chalkstick” Fracture: In a patient with advanced Morbus Bechterew, the spine functions biomechanically as a single, brittle, elongated long bone entirely devoid of shock-absorbing intervertebral discs. Trivial, low-energy trauma—such as a ground-level fall, an abrupt vehicular deceleration, or even an aggressive physical examination maneuver—generates enormous cantilever bending moments across the rigid lever arms. This reliably produces catastrophic, three-column trans-osseous or trans-discal hyperextension fractures, colloquially termed “chalkstick” fractures. These injuries are inherently unstable across the anterior, middle, and posterior columns and carry a devastating risk of secondary translation, epidural hematoma, and complete spinal cord transection. Up to 30% of spinal fractures in ankylosing spondylitis involve non-contiguous levels. Conventional plain radiographs are notoriously unreliable, failing to detect up to 50% of acute fractures due to overlying syndesmophytes, severe osteopenia, severe kyphotic deformity, and scapular shadowing. Therefore, any patient with Morbus Bechterew presenting after trauma with new or altered neck, back, or radicular pain must immediately undergo emergent thin-cut computed tomography (CT) of the entire spine from occiput to sacrum, complemented by urgent magnetic resonance imaging (MRI) to rule out compressive epidural hematomas and cord contusion. Furthermore, maintain high suspicion for Andersson lesions (inflammatory spondylodiscitis or chronic pseudoarthrosis of the ankylosed spine), which mimic destructive infection or neoplasm and create focal segmental kyphosis that necessitates long-segment rigid posterior instrumentation and fusion.

2. Critical Airway Management & Operative Positioning: The patient with advanced ankylosing spondylitis represents one of the most perilous airway and positioning emergencies in operative medicine. The combination of rigid cervicothoracic kyphosis, complete loss of cervical spine extension, temporomandibular joint (TMJ) ankylosis, and severe “chin-on-chest” deformity renders standard direct laryngoscopy physiologically impossible. Attempting forced neck extension during endotracheal intubation is a catastrophic “never event” that reliably snaps the ankylosed cervical spine, triggering fatal brainstem or high cervical cord transection. Secure the airway via planned awake fiberoptic intubation or video laryngoscopy under local topical anaesthesia with spontaneous ventilation strictly preserved until endotracheal tube position is confirmed. Similarly, patient positioning on the operating table presents extreme biomechanical danger. Never attempt to place the patient in a conventional flat supine or prone position. The operating table, head supports, and padded bolsters must be customized to accommodate the patient’s habitual rigid spinal deformity. Any unsupported gap between the patient’s occiput, thoracic cage, or pelvis and the operating table generates an unyielding cantilever bending force that can fracture the brittle spine under the patient’s own body weight upon anaesthetic muscle relaxation.

3. Principles of Sagittal Realignment Osteotomy: Severe fixed cervicothoracic or thoracolumbar kyphosis severely impairs horizontal gaze, forward vision, swallowing, diaphragmatic excursion, and ambulatory sagittal balance. Reconstructive realignment requires precise preoperative geometric planning: measure the Chin-Brow Vertical Angle (CBVA) with the patient standing with hips and knees extended to calculate the exact angular correction needed to restore horizontal gaze, and analyze the Sagittal Vertical Axis (SVA), pelvic incidence (PI), pelvic tilt (PT), and lumbar lordosis (LL). In the lumbar spine, a Pedicle Subtraction Osteotomy (PSO) at L2 or L3 provides 30° to 40° of lordotic correction through a posterior-based closing wedge, closing the posterior column while keeping the anterior column intact. Avoid opening-wedge osteotomies (such as historical Smith-Petersen osteotomies) in a completely fused bamboo spine: extending an ankylosed anterior column creates massive anterior column diastasis, risking catastrophic traction tear of the calcified anterior longitudinal ligament and fatal rupture of the adherent abdominal aorta or inferior vena cava. In severe fixed cervical kyphosis, a C7 pedicle subtraction osteotomy (or C7–T1 extension osteotomy) restores horizontal gaze while protecting the vertebral arteries (which typically enter the transverse foramen at C6, sparing C7) and preserving C8 nerve roots, performed under continuous multimodal intraoperative neurophysiological monitoring (IONM: SSEP and MEP) with long-segment rigid instrumentation spanning from the mid-cervical spine down into the midthoracic spine.

Master Class Surgical Pearl: Cervical Kyphotic Deformity, “Chalkstick” Fractures, and Airway Hazards in Morbus Bechterew

5. Primary Landmark Publications & Bibliography

The foundational contributions of Vladimir Mikhailovich Bechterew to neuropathology, spinal diseases, and clinical neuroanatomy are preserved in these original landmark monographs and peer-reviewed surgical literature:

• v. Bechterew W. Steifigkeit der Wirbelsäule und ihre Verkrümmung als besondere Erkrankungsform. Neurologisches Centralblatt. 1893;12(13):426–434. (Preceded by presentation to the Kazan Society of Physicians and published in Russian in Vrach, 1892;13:899–903).
• v. Bechterew W. Von der Verwachsung oder Steifigkeit der Wirbelsäule. Deutsche Zeitschrift für Nervenheilkunde. 1897;11(3-4):327-337. DOI
• v. Bechterew W. Neue Beobachtungen und pathologisch-anatomische Untersuchungen über Steifigkeit der Wirbelsäule. Deutsche Zeitschrift für Nervenheilkunde. 1899;15(1-2):37-44. DOI
• Lerner V, Margolin J, Witztum E. Vladimir Mikhailovich Bekhterev (1857-1927). Journal of Neurology. 2006;253(11):1518-1519. PMID: 17139360. DOI | PubMed
• Bozhkova E. Vladimir Mikhailovich Bekhterev. The Lancet Neurology. 2018;17(3):213. DOI
• Sieper J, Poddubnyy D. Axial spondyloarthritis. The Lancet. 2017;390(10089):73-84. PMID: 28110981. DOI | PubMed

6. Biographical Provenance & Acknowledgments

This historical biography was synthesized for the OrthopaedicsOne Knowledge Network as part of A Who’s Who of Orthopaedics, adapted and expanded from the foundational biographical directory Who’s Who in Orthopedics (Springer-Verlag London) edited by Seyed B. Mostofi, BSc, MBBS, FRCS (Ed), commemorating the pioneering work of Vladimir Mikhailovich Bechterew documented on page 26 of Mostofi’s compendium.