Home » Diseases » In dogs » Fibrocartilaginous Embolic Myelopathy (Spinal Cord Infarction, Fibrocartilage Embolism)

Fibrocartilaginous Embolic Myelopathy (Spinal Cord Infarction, Fibrocartilage Embolism) in Dogs

Occurrence: common
Location of illness: Back/Tail

Author: Dr. med. vet. Gisa Löwe | Last modified: 06.11.2025

Fibrocartilaginous embolic myelopathy (FCE) is a sudden neurological disorder in dogs caused by the blockage of blood vessels in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body., leading to a partial or complete loss of motor function.

The most important facts at a glance

Fibrocartilaginous embolic myelopathy (FCE) is a neurological disorder in dogs in which fibrous cartilage material from the intervertebral discs enters the blood vessels of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. and blocks blood flow. This leads to an inadequate blood supply and damage to the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. tissue. The exact mechanism is still unclear, but injuries to the intervertebral discs appear to play a role. FCE primarily affects medium to large breeds such as German Shepherds and Labrador Retrievers, often after physical activity or without any recognizable triggerA trigger is a stimulus that elicits a specific reaction or state. In veterinary medicine, this can refer to emotional responses, such as fear or aggression, or medical conditions, such as seizures in dogs and cats.. Symptoms include sudden pain, paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system., and Gait disorders. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made through clinical examinations, MRI, and the exclusion of other causes. There is no specific cure, but rest and physiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques. can support recovery. The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. depends on the severity of the damage; many dogs recover within weeks, especially if the symptoms are mild. Preventive measures are limited as the causes are not fully understood, but regular veterinary check-ups and a healthy lifestyle can help. Research focuses on understanding the disease mechanisms, genetic risk factors, and improved diagnostic and therapeutic approaches.

Causes

Fibrocartilaginous embolic myelopathy is a condition in which an embolus, consisting of fibrous cartilage, enters the blood vessels of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. and blocks blood flow. This phenomenon occurs when small fragments of fibrous cartilage from the intervertebral discs enter the arteries of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body.. This blockage leads to an interruption of the blood supply to certain areas of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body., resulting in ischemiaIschemia refers to an inadequate blood supply to an organ or tissue, leading to a reduction in oxygen and nutrient supply. Ischemia can lead to tissue damage or death if left untreated., i.e., an inadequate blood supply, and ultimately damage to the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. tissue.

The exact mechanism by which fibrous cartilage enters the blood vessels is not yet fully understood. However, it is suspected that increased pressure or injury to the intervertebral discs can cause cartilage material to leak out, which then enters the bloodstream. These emboli can then block the small blood vessels of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body., leading to the characteristic symptoms.

FCE most commonly affects medium to large dog breeds and usually occurs in young to middle-aged dogs. Certain breeds such as German Shepherds, Labrador Retrievers, and Irish Wolfhounds appear to be more frequently affected. The condition usually occurs after physical activity or traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries., but can also occur without any recognizable triggers.

Symptoms

Very common symptoms:

Common symptoms:

Rare symptoms:

The symptoms of fibrocartilaginous embolic myelopathy usually appear suddenly and can become visible within minutes to hours after the event. Often, owners notice that their dog suddenly has difficulty walking or develops paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system. in one or more limbs.

The symptoms vary depending on the location of the embolus in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body.. A blockage in the cervical spine can lead to weakness or paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system. in the front and hind legs, while a blockage in the thoracic or lumbar spine usually only affects the hind legs. Affected dogs often show no pain, which distinguishes FCE from other neurological disorders.

In addition to motor impairments, there may be impaired bladder and bowel function, depending on the severity and location of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. damage. Reflexes in the affected limbs may be weakened or absent, and in some cases, there may be a loss of superficial sensation.

Diagnosis

The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of fibrocartilaginous embolic myelopathy is based on a combination of clinical symptoms, historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits., and the exclusion of other possible causes for the neurological deficits. A thorough neurological examination is crucial to determine the location and extent of the damage in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body..

Imaging procedures such as magnetic resonance imaging (MRI)Magnetic resonance imaging is an imaging technique that uses strong magnetic fields and radio waves to create detailed images of the inside of the body. It is used in veterinary medicine to diagnose diseases of the brain, spine, and other organs. are often necessary to confirm the diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients., as they provide a detailed view of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. and surrounding structures. An MRI can show changes in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. that indicate ischemiaIschemia refers to an inadequate blood supply to an organ or tissue, leading to a reduction in oxygen and nutrient supply. Ischemia can lead to tissue damage or death if left untreated., although the embolus itself is often not directly visible. In some cases, computed tomography (CT)Computed tomography (CT) is an imaging technique that uses X-rays and computer technology to create cross-sectional images of the body. It enables a detailed view of bones, organs, and other structures and is used for the diagnosis of injuries, diseases, and for planning medical interventions. or myelographyMyelography is an imaging procedure in which a contrast agent is injected into the space around the spinal cord (the subarachnoid space) to visualize structures in the vertebral canal / spinal canal and the spinal cord. may be used to rule out other possible causes such as herniated discs.

In addition, cerebrospinal fluidCerebrospinal fluid is a clear, colorless liquid that surrounds and protects the brain and spinal cord. It acts as a shock absorber and is involved in regulating the chemical environment of the CNS (central nervous system). examinations can be performed to rule out inflammatory or infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. causes for the symptoms. A complete blood count and other diagnostic tests may also be required to assess the dog’s general health and rule out other conditions.

Therapy

There is no specific cure for fibrocartilaginous embolic myelopathy, but treatment aims to alleviate symptoms and support the animal’s recovery. Rest and restricted movement are crucial in the acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. phase of the disease to prevent further damage.

PhysiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques. is often an important part of the treatment and can help improve the dog’s mobility and muscle strength. Exercises aimed at strengthening the affected limbs can speed up recovery and improve overall quality of life. In some cases, hydrotherapy may also be considered, as it offers a gentle way to exercise the muscles.

In severe cases where bladder and bowel function is impaired, medical care may be required to prevent infections and other complications. Surgical interventions are generally not performed as they are not effective in FCE.

Prognosis and follow-up care

The prognosis for dogs with fibrocartilaginous embolic myelopathy depends on the severity and location of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. damage. Many dogs show significant improvement within a few days to weeks after the onset of symptoms, especially if the symptoms are mild and only one limb is affected.

Dogs that are able to stand or walk independently within the first two weeks after diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. often have a good prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. and can recover completely. In more severe cases, especially if multipleMultiple means manifold or repeated and is used to describe conditions or events that occur in multiple instances or at different locations. In veterinary medicine, this may indicate multiple lesions, tumors, or other pathological changes. limbs are affected or if no early improvement occurs, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is less favorable.

Long-term complications such as permanent paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system. or neurological deficits can occur, especially if the damage to the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. is significant. However, early and continuous physiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques. care can increase the chances of a full recovery.

Prevention

Since the exact cause of fibrocartilaginous embolic myelopathy is not fully known, there are currently no specific measures to prevent the disease. However, it is recommended to minimize the risk of spinal injuries by avoiding excessive physical activity and traumatic events, especially in dogs that belong to the susceptible breeds.

Regular veterinary check-ups can help monitor the dog’s general health and detect other conditions early that could lead to a weakening of the spine. A healthy diet and an appropriate weight are also important factors in supporting the health of the spine and intervertebral discs.

Although there are no specific preventive measures against FCE, mindful care and observation of the dog can help to recognize possible signs of a neurological disorder early and ensure timely veterinary intervention, which can increase the chances of successful treatment and recovery.

Outlook on current research

Fibrocartilaginous embolic myelopathy (FCE) is a complex neurological problem in dogs caused by the presence of fibrous cartilage material in the blood vessels of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body.. This disease leads to a sudden and often painless loss of motor function, which is caused by an infarction in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body.. Current research focuses on understanding the exact mechanisms by which the cartilage material enters the blood vessels and how it blocks blood flow. A better understanding of these processes could lead to new treatment strategies aimed at rapidly restoring blood flow and preserving spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. function.

Another central topic of research is the investigation of genetic factors that could influence susceptibility to FCE. It is believed that certain breeds, such as the German Shepherd and the Labrador Retriever, are more frequently affected. Researchers are working to identify genetic markers that indicate an increased risk, which could enable preventive measures or targeted breeding programs in the future.

In addition, scientists are investigating innovative diagnostic techniques to detect FCE more quickly and accurately. Current diagnostic procedures often involve expensive and invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. tests such as magnetic resonance imaging (MRI)Magnetic resonance imaging is an imaging technique that uses strong magnetic fields and radio waves to create detailed images of the inside of the body. It is used in veterinary medicine to diagnose diseases of the brain, spine, and other organs.. The development of less invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. and more cost-effective methods could significantly improve the diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of FCE, which in turn would allow for faster treatment and better prognoses for affected dogs.

Treatment options for FCE are currently limited, mainly due to the lack of understanding about the disease. Current studies are exploring the use of physiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques. and rehabilitation techniques to support recovery and restoration of mobility in affected dogs. Earlier interventions appear to increase the chances of success, and research aims to develop the best possible protocols that are individually tailored to the needs of each dog.

Finally, research is also examining the role of environmental factors in the development of FCE. Factors such as diet, exercise, and general health could play a role, and understanding these influences could lead to more comprehensive preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. strategies. However, research in this area is still in its early stages, and further investigations are needed to draw solid conclusions.

Frequently asked questions (FAQs)

What is fibrocartilaginous embolic myelopathy?
FCE is a neurological disorder in dogs that is caused by a sudden loss of motor function due to a blockage of the blood vessels in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body.. This blockage is caused by the penetrationPenetration describes the entry or permeation of a substance or organism into a body or material. In medicine, it can refer to the penetration of microorganisms into tissues or the insertion of instruments into the body. of cartilage material, which leads to an infarction in the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body..
Which dogs are most commonly affected?
Although FCE can occur in dogs of all breeds, larger breeds such as the German Shepherd, the Labrador Retriever, and the Doberman are more frequently affected. In addition, the disease occurs more often in young to middle-aged dogs.
What are the symptoms of FCE?
Typical symptoms include a sudden loss of motor function in one or more limbs, which is usually painless. The dog may also have difficulty standing or walking, and in severe cases, complete paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system. may occur.
How is FCE diagnosed?
DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is usually made by excluding other causes for the symptoms, often using imaging techniques such as magnetic resonance imaging (MRI)Magnetic resonance imaging is an imaging technique that uses strong magnetic fields and radio waves to create detailed images of the inside of the body. It is used in veterinary medicine to diagnose diseases of the brain, spine, and other organs.. Blood tests and neurological tests may also be performed to assess the dog’s condition.
Is there a cure for FCE?
There is currently no specific cure for FCE. Treatment focuses on supporting the dog in its recovery, including physiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques. and rehabilitation to improve mobility and restore muscle strength.
What is the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. for dogs with FCE?
The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. varies depending on the severity of the disease and the affected region of the spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body.. Many dogs recover partially or completely with proper care, especially if treatment begins early. However, in some cases, the paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system. may be permanent.
What can I do to help my dog recover?
Support for recovery can include regular physiotherapyVeterinary physiotherapy encompasses a range of treatment methods aimed at improving the mobility and well-being of animals through exercise, massage, and other manual techniques., massage, and special exercises to strengthen the muscles. It is also important to keep the dog in a safe and supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. environment and to support it with aids such as special harnesses if necessary.
Can FCE be prevented?
Since the exact cause of FCE is not yet fully understood, there are no specific preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. measures. However, general good care, including a balanced diet and regular exercise, can contribute to the dog’s overall health and resilience.
Is FCE painful for dogs?
In contrast to some other spinal cordThe spinal cord is a long, narrow bundle of nerve tissue located in the spinal canal of the vertebral column. It is part of the central nervous system and transmits nerve impulses between the brain and body. diseases, FCE is often painless. Dogs usually show no signs of pain, although they may suddenly lose their mobility.
What research is currently underway to improve treatment?
Current research focuses on genetic predispositions to develop future preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. strategies, as well as innovative diagnostic and therapeutic approaches. The development of less invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. diagnostic methods and the optimization of rehabilitation protocols are also a focus of research.