ArticleNeurospine2021
Retro-Odontoid Pseudotumor Formation in the Context of Various Acquired and Congenital Pathologies of the Craniovertebral Junction and Surgical Techniques.
Article in Neurospine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.
- Hypoglossal nerve palsy due to periarticular cyst extending into hypoglossal canal: a systematic review.Neurosurgical review · 2025Pooled it
- Accuracy and precision of the spinal instability neoplastic score (SINS) for predicting vertebral compression fractures after radiotherapy in spinal metastases: a meta-analysis.Scientific reports · 2021Pooled it
- Retro-Odontoid Calcium Pyrophosphate Deposition Pseudotumor Presenting with Isolated Hypoglossal Nerve Palsy: A Case Report.Journal of neurological surgery reports · 2026Article
- Exoscope-assisted far-lateral approach for a retro-odontoid pseudotumor in the lateral position without fusion: a technical case report.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- Periodontoid pseudotumor with cranial retroclival extension and brainstem compression in a patient with rheumatoid arthritis: illustrative case.Journal of neurosurgery. Case lessons · 2026Article
- Postoperative changes in location and size of retro-odontoid pseudotumor after upper cervical fusion without decompression.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- Intracranial erosion of an occipitocervical rod through the foramen magnum following occipitocervical fusion for retro-odontoid pannus: illustrative case.Journal of neurosurgery. Case lessons · 2026Article
- Risk factors for the development of retro-odontoid pseudotumor in non-rheumatoid arthritis patients with atlantoaxial subluxation: a multicenter cross-sectional study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- Technical nuances of a posterior transdural approach for resection of a compressive retro-odontoid cyst with 2D operative video and graphical illustration: illustrative case.Journal of neurosurgery. Case lessons · 2026Article
- Retro-Odontoid Pseudotumor in Atlantoaxial Instability: Insights Into Presence, Subtypes, and Postoperative Regression.Neurospine · 2025Article
- Article
- Retro-odontoid mass resolution analysis and timing following posterior cervical spinal fixation: 16-year paediatric neurosurgery experience in a single UK institute.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025Article
- Less Is More: Evaluating the Benefits of Minimally Invasive Spinal Surgery.Life (Basel, Switzerland) · 2024Review
- Pseudoachondroplasia associated with os odontoideum and retro-odontoid mass: case-based update.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024Review
- Endoscopic endonasal approach for resection of odontoid process, decompression of the cervicomedullary junction spinal cord, and resection of pannus.Neurosurgical focus: Video · 2024Article
- Article
- Acute abducens nerve palsy from a complex retro-odontoid pseudotumor with a protrusion: A case report.Radiology case reports · 2024Article
- Surgical Versus Conservative Management for Treating Unstable Atlas Fractures: A Multicenter Study.Neurospine · 2022Article
- Measurement of Deformity at the Craniovertebral Junction: Correlation of Triangular Area and Myelopathy.Neurospine · 2022Article
- Changes in retro-odontoid mass after upper cervical spine surgery.Scientific reports · 2022Article
Corrections and comments
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Authors and funding
8 authors at 6 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Retro-odontoid pseudotumor formation consists of an abnormal growth of granulation tissue typically posterior to the odontoid process, resulting as a manifestation of atlantoaxial instability. This instability can occur as a result of conditions ranging from severe mechanical trauma to metabolic disease or autoimmune conditions such as rheumatoid arthritis. A pseudotumor may impinge on the spinal nerves or even the spinal cord and brainstem, manifesting symptoms from severe neck pain to cervicomedullary compression or myelopathy, and in some cases even sudden death. The objective of this review is to consolidate the findings in published case reports and relevant prior literature reviews regarding the formation of retro-odontoid pseudotumor. We address the pathophysiology involved in acquired and congenital pseudotumor formation, including those associated with rheumatoid arthritis (panni). Additionally, we discuss past and current operative techniques designed to curtail and ultimately regress a retro-odontoid pseudotumor and pannus. Surgical techniques that are addressed include ventral decompression (both transoral and transnasal), dorsal decompression, and indications for posterior instrumentation in pannus formation, particularly in cases that may be sufficiently treated in lieu of an anterior approach. Finally, we will examine the role of external orthoses as both a method of conservative treatment as well as a potential adjunct to the aforementioned surgical procedures.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.