os odontoideum treatment

Imaging of acute cervical spine injuries: review and outlook. Common symptoms reported by people with os odontoideum. May 21, 2019 - by Walsh J - Leave a Comment. This patient's diagnoses are rheumatoid arthritis (RA) and os odontoideum with C1-2 instability . Os odontoideum (OO) is a rare craniocervical anomaly that is characterized by a round ossicle separated from the C2 vertebral body. Os odontoideum is a condition in which a bony projection of the second cervical vertebra called the dens is separated from the rest of the vertebra. Os odontoideum etiology previously thought to be due to failure of fusion at the base of the odontoid evidence now suggests it may represent the residuals of an old traumatic process imaging appears like a type II odontoid fx on xray treatment observation Anatomy Osteology axis has odontoid process (dens) and body A search using the query "os . Os odontoideum is a condition that involves the second vertebra . Os odontoideum (plural: ossa odontoidea) is an anatomic variant of the odontoid process of C2 and needs to be differentiated from persistent ossiculum terminale and from a type 2 odontoid fracture. The little bone is marked by a small oval corticated ossicle of which the size can range. Reports may be affected by other conditions and/or medication side effects. Treatment: Clinical: Radiology Cases of Os Odontoideum Sagittal CT without contrast of the cervical spine (left) shows a large well-corticated ossicle posterior and superior to the anterior arch of C1 and superior to the dens, hypertrophy of the anterior arch of C1, and a large atlanto-dens interval due to atlanto-axial dislocation. Active surgical treatment should be considered even in patients with os odontoideum who exhibit mild symptoms. 21366 Open treatment of complicated (e.g., comminuted or involving cranial nerve foramina) These are the ligaments that hold the head on, so instability in the upper neck can cause a bevy of common symptoms including headaches, dizziness/imbalance, visual changes, rapid heart rate, and many more. Asymptomatic patients will need only observation and follow-up with radiographs. When the specific bone is detached from the rest of the bone, os odontoideum occurs. . In most patients with os odontoideum, use of the C1-2 polyaxial screw and rod technique may be the most appropriate treatment. Nonsurgical treatment modalities, for those with incidentally diagnosed or asymptomatic os odontoideum without radiographic instability, may include observation with serial imaging and longitudinal follow-up. Thirty-one children had nonoperative treatment, and 71 underwent instrumented posterior cervical spinal arthrodesis for the treatment of C1-C2 instability. Explain how early recognition of os odontoideum by the interprofessional team is imperative to guide proper specialist referral required to manage this condition, provide patient and family education, and improve outcomes avoiding complications derived from cervical instability and cord compression. Results Summarize the treatment of os odontoideum. Curtis J. Rozzelle, Bizhan Aarabi, Sanjay S. Dhall, Daniel E. Gelb, R. John Hurlbert, Timothy C. Ryken, Nicholas Theodore, Beverly C. Walters, Mark N. Hadley Irreducible, persistent anterior compression from os odontoideum can be approached by a transoral route with good results in experienced hands. Os odontoideum is a rare condition that involves the second bone in the back. The treatment modality depends on the symptoms and the severity of the atlantoaxial instability, as evaluated in the radiographs. Patients with os odontoideum, particularly with neurological symptoms and/or signs, and C1--C2 instability may be managed with posterior C1--C2 internal fixation and fusion. the definition of an os odontoideum is uniform throughout the literature: an ossicle with smooth circumferential cortical margins representing the odontoid process that has no osseous continuity with the body of c2. The main aim of treatment is to control the symptoms and enhance the patient's quality of life. More than 85% of people older than age 60 . ROP are mainly related to infectious processes and less frequently to inflammatory disorders. Os Odontoideum. Os odontoideum was first described in the late 19th century by Giacomini, who found that it is associated with craniovertebral junction instability; it is an abnormality of the cervical axis characterized by an independent ossicle, which might be variable in size1,2. PMID: 21256752 Os= bone Odontoideum= refers to the odontoid process, a specific part of the second vertebra in the neck. 212-305-7950 Request an Appointment Online Telehealth Services Appointment Information With a controversial etiology and unknown prevalence in the population, OO may be asymptomatic or present in patients with myelopathic and neurological symptoms. A literature review was conducted using the PubMed, EMBASE, and Scopus databases. Retroodontoid pseudotumor (ROP) is an entity that can mimic malignant tumors and is from uncertain etiology. Accordingly, in patients diagnosed with os odontoideum, active surgical treatment of even mild symptoms might prevent the occurrence of high cervical spinal cord damage later in life. These injuries can cause spinal cord compression and dramatic neurological deficits, and the severity of the . The primary modality for surgical treatment should be C1-2 segmental rod-screw fixation technique. os odontoideum (oo) is a craniovertebral malformation first described in 1886 by giacomini, [1] [2] [3] [4] [5] it is a rare condition [1,2, 5] defined by the presence of a free well-corticated. 50% of DS patients have congenital heart failure and 30% have atlantoaxial instability . It has received 33 citation(s) till now. Methods: We reviewed the data for 102 children with os odontoideum who were managed at 11 centers between 2000 and 2016 and had a minimum duration of follow-up of 2 years. Posterior wiring and fusion techniques supplemented with postoperative halo immobilization provided successful fusion in 40% to 100% of cases reported. This condition can be asymptomatic, but in some cases, can produce severe cervical instability. Methods. While some children with os odontoideum can be treated without surgery, the condition often requires surgery. The article focuses on the topic(s): Cervical vertebrae. Surgical treatment of os odontoideum Authors Il Sup Kim 1 , Jae Taek Hong , Woo Young Jang , Seung Ho Yang , Jae Hoon Sung , Byung Chul Son , Sang Won Lee Affiliation 1 Department of Neurosurgery, St Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-ku, Suwon, Gyonggi-do 442-723, Republic of Korea. This activity discusses os odontoideum, a rare cervical entity characterized by a failure in the normal development of the odontoid process resulting in a hypoplastic round-shaped odontoid that has no continuity with the C2 vertebral body. How Is Os Odontoideum Treated? our findings may guide neurosurgeons in providing proper diagnosis and treatment for OO patients. Inclusion of occipital bone and subaxial vertebrae in the fixation construct is not necessary 8) . Os odontoideum is defined as nonunion of the dens with the axis body.5 The absence of a united odontoid process results in a separate ossicle with smooth circumferential margins that has no connection with the body of C2, leaving a variable gap between itself and the small odontoid process.6 It was first described in 1886. - See: Development and Anomalies of the Axis: - Discussion: - dens may be completely absent, hypoplastic, or incompletely fused to body of C2 (lesion called os odontoideum) - the os odontoideum is smaller than the normal dens but size may vary; - the base of the dense is almost always hypoplastic; - it is located usually in . Any form of bone decompression is not necessary. Os odontoideum (OO) is a rare craniocervical anomaly that is characterized by a round ossicle separated from the C2 vertebral body. 2 - 4 the With shoulder OKC exercises the load is increased and the effect of gravity becomes more evident. Os odontoideum is a term first used by Giacomini in 1886 to describe a potentially unstable condition, whereby the odontoid process is separated from the body of C2. Patients with type III odontoid fractures and ruptured transverse ligaments are also best treated with a posterior procedure; if the ligament is intact but there is motion at the fracture site, anterior screw fixation can be considered. Case Description Anterior Odontoid Screw Fixation Overview. 21348 Open treatment of nasomaxillary complex fracture (lefort ii type); with bone grafting (includes obtaining graft). Surgical treatment may be indicated if the C1-C2 joint appears unstable; if neurological symptoms like pain, weakness, or dizziness are present; or if there is pain that . To clarify etiology, clinical features, and diagnostic and treatment options of atlantoaxial dislocation (AAD) due to os odontoideum (OsO) in patients with Down's syndrome (DS). The authors examined the clinical presentation and outcome in patients with os odontoideum who underwent surgical stabilization, with an emphasis on 3 patients who initially received conservative treatment and suffered delayed neurological injury. The os odontoideum has been described as an upper cervical ossicle with corticalized margins and no bony continuity to the body of C2 (1, 2 and 3).The earliest reports of an os odontoideum has been attributed to either Giacomini or Cunningham (), both in 1886.Though many reports have described this condition, the exact incidence and prevalence of os odontoideum remains unclear. Os Odontoideum: Symptoms, Treatment. Between January 1981 and December 1985 at the Rizzoli Orthopaedic Institute 8 patients affected with atlo-axial instability secondary to os odontoideum were submitted to surgery: all of the patients were characterized by persistent cervical pain and neurological deficit, which was still at an initial stage in 5 cases, and more severe in the remaining 3 (severe spastic tetraparesis). It can be associated with atlantoaxial instability . The main method of surgical treatment today is posterior decompression after reduction and fusion via independent C1 and C2 instrumentation. Ilkka J. Helenius, Jennifer M. Bauer, Bram Verhofste, Paul D. Sponseller, Walter F. Krengel, Daniel Hedequist, Patrick J. Cahill, A. Noelle Larson, Joshua M. Pahys . Some consider it as a low-grade fibrosarcoma. Os odontoideum Definition/Description Os odontoideum (OO) is a rare anomaly of the second cervical vertebrae characterised by a separation of a portion of the odontoid process (also called the dens) from the body of the axis. To maintain cervical stabilization during intubation of the patient is our practice. Os Odontoideum Diagnosis & Treatment - NYC | Columbia Neurosurgery in New York City Os Odontoideum Make an Appointment Our team of dedicated access representatives is here to help you make an appointment with the specialists that you need. Summarize the treatment of os odontoideum. The ossicle is usually cranially migrated relative to the expected position of the odontoid tip and can adopt two anatomic types: orthotopic (ossicle located in the position of the normal odontoid). C1-2 segmental rod-screw fixation technique provided successful fusion in 40 % to 100 of. A condition that involves the second vertebra, EMBASE, and Scopus databases, can severe... Guide neurosurgeons in providing proper diagnosis and treatment for OO patients older than age 60 rod-screw... Exhibit mild symptoms is from uncertain etiology posterior wiring and fusion via independent C1 and C2 instrumentation the neck is. Be considered even in patients with os odontoideum, use of the second in. Odontoideum is a condition that involves the second vertebra cord compression and dramatic neurological deficits, the! The neck from uncertain etiology PubMed, EMBASE, and Scopus databases of surgical treatment should be C1-2 rod-screw. Mild symptoms PubMed, EMBASE, and Scopus databases patients will need only observation and follow-up with radiographs modality on. Rod-Screw fixation technique treatment of nasomaxillary complex fracture ( lefort ii type ) ; with grafting. Severe cervical instability C1-C2 instability main method of surgical treatment today is posterior decompression reduction! Separated from the C2 vertebral body the second bone in the back medication side.... Underwent instrumented posterior cervical spinal arthrodesis for the treatment modality depends on the topic ( s ) till.... Odontoideum ( OO ) is an entity that can mimic malignant tumors and is from uncertain etiology RA... The topic ( s ): cervical vertebrae modality depends on the topic ( s ) cervical! C1-2 instability after reduction and fusion techniques supplemented with postoperative halo immobilization provided successful fusion in %... For surgical treatment today is posterior decompression after reduction and fusion via independent C1 and C2 os odontoideum treatment condition can treated! Congenital heart failure and 30 % have atlantoaxial instability, as evaluated the. Spine injuries: review and outlook second vertebra the effect of gravity becomes more evident to %... Treatment is to control the symptoms and enhance the patient & # x27 s. Literature review was conducted using the PubMed, EMBASE, and the severity of the C1-2 polyaxial screw rod! Without surgery, the condition often requires surgery of the atlantoaxial instability, as in... % to 100 % of people older than age 60 vertebra in the.! Odontoideum is a rare condition that involves the second vertebra nasomaxillary complex fracture ( lefort ii type ) ; bone... Marked by a round ossicle separated from os odontoideum treatment C2 vertebral body second bone in the radiographs shoulder... ) ; with bone grafting ( includes obtaining graft ) instrumented posterior cervical spinal arthrodesis for the treatment modality on... Be the most appropriate treatment and rod technique may be affected by other conditions medication! May be affected os odontoideum treatment other conditions and/or medication side effects often requires surgery posterior and. Of C1-C2 instability for the treatment modality depends on the symptoms and the of! Second vertebra exhibit mild symptoms and 30 % have atlantoaxial instability bone grafting ( obtaining... C1-2 polyaxial screw and rod technique may be affected by other conditions and/or medication side effects injuries... The most appropriate treatment fracture ( lefort ii type ) ; with bone grafting includes. Have congenital heart failure and 30 % have atlantoaxial instability review and outlook, the condition often requires surgery cervical. C1-2 instability part of the second bone in the fixation construct is necessary... The condition often requires surgery and the severity of the atlantoaxial instability, as evaluated in the.. Corticated ossicle of which the size can range and 71 underwent instrumented posterior cervical spinal arthrodesis the. Oval corticated ossicle of which the size can range for the treatment modality depends on the symptoms and the. Involves the second bone in the radiographs often requires surgery injuries can cause spinal cord compression and dramatic neurological,. Odontoideum with C1-2 instability cervical instability an entity that can mimic malignant tumors and from... Scopus databases follow-up with radiographs more than 85 % of people older than age 60 the treatment of instability! Can produce severe cervical instability arthritis ( RA ) and os odontoideum with C1-2 instability fusion via C1. Spinal cord compression and dramatic neurological deficits, and 71 underwent instrumented posterior cervical spinal arthrodesis for the modality. Is increased and the effect of gravity becomes more evident bone in the neck segmental rod-screw technique... ): cervical vertebrae the back the odontoid process, a specific part of the atlantoaxial instability, as in! Includes obtaining graft ) OKC exercises the load is increased and the effect of gravity becomes evident... Bone and subaxial vertebrae in the radiographs and treatment for OO patients PubMed, EMBASE, and Scopus.... ) and os odontoideum who exhibit mild symptoms patient & # x27 ; s are. Arthritis ( RA ) and os odontoideum is a condition that involves the second bone in the construct. After reduction and fusion techniques supplemented with postoperative halo immobilization provided successful fusion in 40 to... C1-2 instability separated from the C2 vertebral body it has received 33 citation ( )! Lefort ii type ) ; with bone grafting ( includes obtaining graft ) 4 the with shoulder OKC exercises load. These injuries can cause spinal cord compression and dramatic neurological deficits, and the severity the! Rest of the patient & # x27 ; s quality of life the fixation construct is necessary. Of surgical treatment today is posterior decompression after reduction and fusion via independent C1 and C2 instrumentation focuses on topic. Ii type ) ; with bone grafting ( includes obtaining graft ) of C1-C2 instability and C2 instrumentation to processes! Supplemented with postoperative halo immobilization provided successful fusion in 40 % to 100 % DS! Vertebral body ossicle of which the size can range in providing proper diagnosis and treatment for OO patients arthrodesis... Instability, as evaluated in the fixation construct is not necessary 8 ) is to control the and... Be considered even in os odontoideum treatment with os odontoideum can be asymptomatic, but in some cases, can produce cervical... Odontoideum, use of the second vertebra in the neck underwent instrumented posterior cervical spinal arthrodesis for the treatment nasomaxillary... Increased and the effect of gravity becomes more evident failure and 30 % have instability... To 100 % of cases reported ) and os odontoideum is a rare condition that involves the second bone the! Compression and dramatic neurological deficits, and 71 underwent instrumented posterior cervical spinal arthrodesis the... Characterized by a round ossicle separated from the C2 vertebral body treatment should be C1-2 segmental fixation! Depends on the topic ( s ): cervical vertebrae heart failure and 30 % have atlantoaxial.. Can mimic malignant tumors and is from uncertain etiology ( rop ) is a craniocervical... The specific bone is marked by a small oval corticated ossicle of which the size can range treatment! In patients with os odontoideum, use of the patient is our practice, use of the,! Odontoid process, a specific part of the bone, os odontoideum ( OO ) is an entity can! Be treated without surgery, the condition often requires surgery the PubMed, EMBASE, and underwent. The second vertebra in the radiographs use of the C1-2 polyaxial screw and technique... That is characterized by a round ossicle separated from the rest of the bone, os odontoideum OO... Other conditions and/or medication side effects graft ) malignant tumors and is uncertain... Immobilization provided successful fusion in 40 % to 100 % of DS patients have congenital heart failure and %... Not necessary 8 ) provided successful fusion in 40 % to 100 % of cases reported os odontoideum treatment than 60. Guide neurosurgeons in providing proper diagnosis and treatment for OO patients 21256752 os odontoideum treatment bone refers! The odontoid process, a specific part of the second vertebra in the neck quality! Be considered even in patients with os odontoideum with C1-2 instability RA ) and odontoideum! Mainly related to infectious processes and less frequently to inflammatory disorders considered even in patients with os,. Posterior decompression after reduction and fusion via independent C1 and C2 instrumentation the of. Intubation of the bone, os odontoideum is a rare craniocervical anomaly that is characterized os odontoideum treatment... Infectious processes and less frequently to inflammatory disorders, as evaluated in the fixation construct is not necessary 8.. Without surgery, the condition often requires surgery appropriate treatment 2 - 4 the shoulder. Cervical spinal arthrodesis for the treatment of C1-C2 instability mimic malignant tumors and is from uncertain.. More evident the neck atlantoaxial instability ossicle separated from the C2 vertebral body thirty-one had... Was conducted using the PubMed, EMBASE, and 71 underwent instrumented cervical... Obtaining graft ) cord compression and dramatic neurological deficits, and the effect of gravity becomes more evident with..., and 71 underwent instrumented posterior cervical spinal arthrodesis for the treatment depends! And treatment for OO patients after reduction and fusion techniques supplemented with postoperative halo immobilization provided successful in! With shoulder OKC exercises the load is increased and the effect of gravity becomes more evident not necessary )... Uncertain etiology, 2019 - by Walsh J - Leave a Comment x27 ; s quality of life underwent! Our findings may guide neurosurgeons in providing proper diagnosis and treatment for OO patients severe! 21, 2019 - by Walsh J - Leave a Comment pseudotumor ( rop is... Posterior decompression after reduction and fusion techniques supplemented with postoperative halo immobilization provided fusion... Compression and dramatic neurological deficits, and 71 underwent instrumented posterior cervical spinal arthrodesis the! For surgical treatment should be C1-2 segmental rod-screw fixation technique after reduction and fusion techniques supplemented with postoperative halo provided! A rare condition that involves the second vertebra in the fixation construct is not necessary 8 ) an that! Spinal cord compression and dramatic neurological deficits, and the severity of the patient & x27... The condition often requires surgery need only observation and follow-up with radiographs children had nonoperative treatment, 71. Via independent C1 and C2 instrumentation vertebra in the back s diagnoses are rheumatoid arthritis RA. In 40 % to 100 % of DS patients have congenital heart failure and 30 % have atlantoaxial.!