Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 12/1/2025

Management of Avascular Necrosis of the Hip in Ehlers-Danlos Syndrome

Diagnostic Approach

  • The American College of Radiology recommends obtaining MRI of both hips immediately if standard radiographs are normal, as MRI is the preferred diagnostic method for AVN and bilateral involvement is common 2
  • The European Society of Cardiology suggests determining EDS subtype urgently through genetic testing if not already confirmed, as vascular EDS (Type IV) carries dramatically different surgical risks than hypermobile or classical types 3, 1

Medical Management Strategy

  • The European Heart Journal recommends initiating celiprolol (beta-blocker with vasodilatory properties) if not already prescribed, particularly for vascular EDS, to reduce vascular morbidity 3, 4
  • The American College of Cardiology suggests maintaining blood pressure in normal range with aggressive hypertension treatment to minimize vascular complications 3, 4
  • The Clinical Infectious Diseases journal recommends ensuring adequate vitamin D and calcium supplementation to address bone health, as vitamin D deficiency is common and can worsen bone density 2
  • The European Society of Endocrinology suggests screening for and treating secondary causes of decreased bone density including hypogonadism, which may contribute to AVN progression 2

Preoperative Vascular Surveillance

  • The Praxis Medical Insights guideline recommends performing baseline imaging from head to pelvis using Doppler ultrasound, low-radiation CT angiography, or cardiovascular MRI to evaluate the entire aorta and branch vessels 1, 4
  • The European Heart Journal suggests documenting any arterial tortuosity, aneurysms, or dissections that would increase surgical risk 3, 4
  • The American College of Surgeons recommends obtaining cardiology and vascular surgery clearance before proceeding with orthopedic surgery 1, 4

Surgical Considerations and Timing

  • The Praxis Medical Insights guideline suggests that for Vascular EDS (Type IV), surgery carries extremely high mortality risk due to arterial fragility and bleeding complications, and must be performed at a center with expertise in EDS by a multidisciplinary team including vascular surgery on standby 1, 4
  • The Clinical Infectious Diseases journal recommends proceeding with surgery when conservative management fails and quality of life is significantly impaired for Hypermobile and Classical EDS 2

Intraoperative Management

  • The Praxis Medical Insights guideline recommends using pledgeted sutures for all anastomoses and tissue repairs to prevent tearing through fragile tissues 1
  • The European Heart Journal suggests minimizing tissue trauma through gentle handling and avoiding excessive retraction 1

Postoperative Surveillance

  • The Praxis Medical Insights guideline recommends annual vascular surveillance imaging should continue lifelong for all EDS patients 1, 4

Critical Pitfalls to Avoid

  • The Praxis Medical Insights guideline suggests avoiding invasive vascular imaging including diagnostic catheter angiography, which has caused fatal complications in EDS patients 1
  • The Praxis Medical Insights guideline recommends not proceeding with surgery without multidisciplinary team involvement including genetics, cardiology, vascular surgery, and anesthesia with EDS expertise 1, 4
  • The Praxis Medical Insights guideline suggests not using opioids for chronic pain management due to high risk of dependence and worsening of gastrointestinal symptoms common in EDS 5

Multidisciplinary Team Structure

  • The Praxis Medical Insights guideline recommends coordination across multiple specialties including medical genetics for definitive EDS subtype classification and genetic counseling 1, 5
  • The Praxis Medical Insights guideline suggests cardiology for cardiovascular risk assessment and blood pressure optimization 1, 4
  • The Praxis Medical Insights guideline recommends vascular surgery for preoperative vascular assessment and intraoperative standby 1, 4

Conservative Management Options

  • The Clinical Infectious Diseases journal recommends using assistive devices including canes or walkers to offload the affected hip 2
  • The Praxis Medical Insights guideline suggests pain management through non-opioid modalities including NSAIDs (if no contraindications), acetaminophen, and topical agents 5

REFERENCES

3

Ehlers-Danlos Syndrome Management Guidelines [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

4

Management of Vascular Ehlers-Danlos Syndrome [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

5

Diagnosis of Ehlers-Danlos Syndrome [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2026