Hypermobility Spectrum Disorder vs EDS: The Differences

Demystifying hypermobility spectrum disorder vs EDS. Learn about symptoms, diagnosis, and treatment strategies.

reuben kesherim
Ruben Kesherim
April 12, 2024

Hypermobility Spectrum Disorder vs EDS: The Differences

Understanding Hypermobility Spectrum Disorders

Hypermobility Spectrum Disorders (HSDs) are a group of connective tissue disorders that are often misunderstood and misdiagnosed. These disorders are characterized by joint hypermobility, instability, and pain, often accompanied by a range of other issues. This section will provide a basic definition of HSD and explore the prevalence of this condition in the population.

Definition of HSD

Hypermobility Spectrum Disorders (HSDs) are characterized by joint hypermobility, instability, injury, and pain, often accompanied by other issues like fatigue, headaches, gastrointestinal problems, and autonomic dysfunction. Joint hypermobility is identified using methods like the Beighton score, which measures hypermobility on a 9-point scale. A positive Beighton score is considered any score greater than or equal to 5/9 points in adults, 6/9 points in children, and 4/9 points in adults over 50. Hyperflexibility may be present in various body joints such as the jaw, neck, shoulders, wrists, hips, ankles, feet, and toes [1].

For an HSD diagnosis, it is necessary to rule out other conditions that could explain the symptoms. The diagnosis requires evidence that the joint hypermobility is causing problems and is not merely an asymptomatic feature. Conditions that must be excluded for an HSD diagnosis include Marfan syndrome, Down syndrome, Ehlers-Danlos syndromes (EDS), and others [1].

Prevalence of HSD

HSD is prevalent in up to approximately 20% of people who maintain hypermobility into adulthood. In these cases, HSD can cause joint subluxations, dislocations, sprains, and other injuries, leading to acute and chronic pain.

Some individuals with HSD might exhibit features of other heritable connective tissue disorders but may not meet the specific diagnostic criteria for those disorders. For example, someone with generalized joint hypermobility and chronic pain could display characteristics of hypermobile EDS but not qualify for a formal diagnosis. In such cases, individuals would be diagnosed with HSD and managed similarly to those with hypermobile EDS.

The differentiation between Hypermobility Spectrum Disorders (HSD) and hypermobile Ehlers-Danlos Syndrome (hEDS) is challenging due to the lack of a definitive diagnostic test for either condition. Some experts view HSD and hEDS as part of a spectrum with similar underlying causes, while others see them as separate conditions. Both conditions require similar management approaches and the hEDS/HSD Working Group continues research to increase understanding.

Symptoms and Impact of HSD

Hypermobility Spectrum Disorders (HSD) are a group of conditions characterized by hypermobility, where an individual's joints have a greater range of movement than typically expected. The symptoms and impacts of HSD are diverse, affecting not only the joints but other parts of the body as well.

Symptomatic Joint Hypermobility

One of the major indicators of HSD is symptomatic joint hypermobility. This is a condition where the joints move beyond the normal range expected for a particular joint. It can be a standalone issue or occur in conjunction with other medical problems [1].

Joint instability is a common symptom of symptomatic joint hypermobility. This instability occurs when the bones of a joint aren’t held in place securely, leading to joint subluxations, dislocations, sprains, and other injuries. This can cause both acute and chronic pain, interfering with daily life.

Additionally, people with hypermobility syndromes can experience pain and fatigue that can be debilitating, and joint and ligament injuries that can limit mobility [2].

Associated Conditions

People with hypermobility may also experience weak collagen in other parts of the body, leading to additional conditions or symptoms [2]. Some of these associated conditions include postural orthostatic tachycardia syndrome (POTS), digestive issues like gastroparesis, irritable bowel syndrome, or gastric reflux. These can further impact an individual's quality of life and require additional medical management.

Understanding the symptoms and impacts of HSD is crucial for individuals with hypermobility spectrum disorder vs EDS (Ehlers-Danlos Syndromes), as it can inform their treatment strategies and management plans. It also underscores the importance of accurate diagnosis and differentiation between these conditions, which will be explored in subsequent sections of this article.

Diagnosis and Evaluation of HSD

Understanding the process of diagnosis and evaluation is crucial for anyone dealing with hypermobility spectrum disorders (HSD). It's a complex journey that involves recognizing symptoms, undertaking physical examinations, and ruling out other conditions.

Diagnostic Process

The diagnosis of HSD is primarily based on a detailed medical history and physical examination. The presence of symptomatic joint hypermobility that disrupts normal function is a key factor in the diagnosis [1].

Laboratory testing and radiography might be required as well, guided by the clinical history and physical examination. These diagnostic tools are used to further understand the extent of the disorder and identify any associated conditions.

The diagnosis is not merely about identifying joint hypermobility but also requires evidence that this hypermobility is causing problems. It is not an asymptomatic feature but a condition that significantly impacts the individual's quality of life.

Differential Diagnosis

A crucial component of the diagnostic process for HSD is the differential diagnosis. This involves excluding other conditions that could explain the symptoms. The differential diagnosis process is essential to ensure that the patient receives the right treatment for their specific condition.

Conditions that must be excluded for an HSD diagnosis include Marfan syndrome, Down syndrome, Ehlers-Danlos syndromes (EDS), and others [1].

The diagnosis of hypermobile EDS should also be considered in patients with clinical features such as joint hypermobility, skin findings, and joint pains or arthralgias. Like HSD, the diagnosis of hypermobile EDS is made by medical history, physical examination, and exclusion of other conditions that present with musculoskeletal hypermobility [3].

Understanding the difference between 'hypermobility spectrum disorder vs eds' is vital for anyone dealing with these conditions. With appropriate diagnosis and management, individuals with these disorders can lead healthier and more comfortable lives.

Management of Hypermobility Spectrum Disorders

When it comes to managing Hypermobility Spectrum Disorders (HSD), a comprehensive and multidisciplinary approach is key. As there are no disease-specific treatments for HSD, management is focused on addressing individual symptoms and needs.

Multidisciplinary Approach

People with HSD often require multiple providers in different specialties to manage their care. This multidisciplinary approach is essential as the disorder can affect multiple systems in the body. Primary care providers may face several challenges in managing HSDs, including the need for ongoing patient education, empowerment, and coordination of multidisciplinary treatment teams to ensure proper care. These components are essential beyond accurate diagnosis to address the complexities associated with HSDs [1].

The goal of this approach is to ensure comprehensive care and support for patients with HSD, from symptom management to lifestyle modifications. This could involve general practitioners, rheumatologists, physical therapists, mental health professionals, and specialists in pain management, among others.

Treatment Strategies

The central goals of therapy for hypermobile EDS and hypermobility spectrum disorders are managing symptoms, preventing joint injury, and teaching patients about their condition. Treatment strategies typically include patient education, physical and occupational therapy, psychological support, and self-management [3].

Management of HSDs focuses on addressing the cause of pain, reducing pain when possible, and maximizing functional capacity and quality of life. Lifestyle modifications such as weight loss and exercise are often recommended. Physical therapy can help strengthen muscles and stabilize joints, reducing the risk of injury and pain.

Mental health support is also a crucial component of treatment, as chronic pain and mobility issues can lead to anxiety, depression, and other mental health issues. Cognitive-behavioral therapy (CBT) and other forms of talk therapy can be beneficial.

Pharmacologic therapies may also be used to manage pain. These include non-steroidal anti-inflammatory drugs (NSAIDs), acetaminophen, and serotonin and norepinephrine reuptake inhibitors (SNRIs) or low-dose tricyclic antidepressants (TCAs). However, opioids are generally avoided due to the risk of dependency and other adverse effects [4].

Overall, the management of HSD requires a personalized and comprehensive approach, addressing not just the physical symptoms, but also the emotional and psychological aspects of living with a chronic condition. With proper management, individuals with HSD can lead fulfilling and active lives despite their condition.

Differentiating HSD and EDS

The differentiation between Hypermobility Spectrum Disorders (HSD) and hypermobile Ehlers-Danlos Syndrome (hEDS) is a challenging task due to the lack of a definitive diagnostic test for either condition.

Challenges in Diagnosis

The complexity in distinguishing HSD from hEDS arises from the overlapping symptoms and the absence of specific tests for these conditions. Both HSD and hEDS are characterized by hypermobility and associated symptoms, which can make the diagnosis process challenging [1].

While some experts view HSD and hEDS as part of a spectrum with similar underlying causes, others see them as separate conditions. The exact prevalence of hypermobile EDS/hypermobility spectrum disorders is also unknown, further complicating the differentiation process. Current estimates derived from studies in Sweden and the United Kingdom suggest a combined prevalence of 0.13% to 0.19%.

Identification of the specific type of HSD present is crucial for guiding appropriate care, especially when diagnosing hEDS. Individuals with hEDS may face more extensive multisystem involvement, and diagnostic criteria for hEDS include assessments of joint hypermobility, skin and other connective tissue manifestations, and the absence of evidence for other types of Ehlers-Danlos syndrome [5].

Management Strategies

Despite the challenges in distinguishing between HSD and hEDS, the management strategies for both conditions are similar. Both conditions require a comprehensive approach that may involve multiple healthcare professionals.

The diagnosis of hypermobile EDS/hypermobility spectrum disorders is made by medical history, physical examination, and exclusion of other conditions that present with musculoskeletal hypermobility. Laboratory testing and radiography are guided by clinical history and physical examination [3].

The main goals of management are to reduce pain, improve function, and enhance quality of life. This may involve medication, physical therapy, and lifestyle modifications. In some cases, surgical intervention may be necessary.

In conclusion, while the differential diagnosis between HSD and hEDS can be challenging, a comprehensive evaluation and an individualized treatment plan can help manage symptoms and improve the quality of life for individuals with these conditions. Ongoing research by the hEDS/HSD Working Group aims to further our understanding of these conditions and improve diagnostic and treatment strategies.

Pathophysiology and Treatment Approaches

Navigating the complex world of hypermobility spectrum disorders (HSDs) and Ehlers-Danlos syndromes (EDS) can be challenging due to the overlapping symptoms and similarities in treatment strategies. Understanding the underlying pathophysiology and the recommended treatment approaches can provide valuable insights and help to differentiate between these two conditions.

Musculoskeletal Pain in HSDs

The pathophysiology of musculoskeletal pain in HSDs is not fully understood, but it is believed to involve localized biomechanical overloading and chronic soft tissue injury due to joint laxity and instability. Patients with HSDs may also have neurologic perturbations that contribute to diffuse musculoskeletal pain. Generalized hyperalgesia is common and believed to be mediated by central sensitization. Patients with HSDs may also experience autonomic dysfunction and have higher rates of anxiety and depression [4].

This diverse range of symptoms and pathophysiological mechanisms highlights the complexity of HSDs and underscores the need for a multifaceted and individualized approach to treatment.

Multidisciplinary Management

The management of HSDs involves a multidisciplinary approach, focusing on addressing the cause of pain, reducing pain when possible, and maximizing functional capacity and quality of life. Lifestyle modifications such as weight loss and exercise are recommended. Physical therapy, mental health support, and pharmacologic therapies including non-steroidal anti-inflammatory drugs (NSAIDs), acetaminophen, and serotonin and norepinephrine reuptake inhibitors (SNRIs) or low-dose tricyclic antidepressants (TCAs) may be used to manage pain. Avoidance of opioids is recommended [4].

For hypermobile EDS, the central goals of therapy are managing symptoms, preventing joint injury, and teaching patients about their condition. Treatment strategies include patient education, physical and occupational therapy, psychological support, and self-management [3].

The overlap in treatment strategies for HSDs and hypermobile EDS reflects the shared symptoms and pathophysiology of these conditions. However, the nuanced differences in their diagnosis, and the potential for co-occurring conditions, underscore the importance of a comprehensive and individualized approach to management. Both conditions require careful monitoring and regular follow-up to assess the effectiveness of the treatment regimen and make necessary adjustments.

References

[1]: https://www.ehlers-danlos.com/what-is-hsd/

[2]: https://versusarthritis.org/about-arthritis/conditions/joint-hypermobility/

[3]: https://www.aafp.org/pubs/afp/issues/2021/0415/p481.html

[4]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10457547/

[5]: https://pubmed.ncbi.nlm.nih.gov/34312277/