Differential Diagnosis

  • Hamstring avulsion
  • Lumbosacral facet syndrome
  • Lumbosacral radiculopathy
  • Sacroilliac joint injury


This patient sustained a hamstring avulsion. Diagnosis of such injuries is often missed or delayed, which results in complications such as sciatica, pain, weakness, stiffness, or even deformity.


Learnings/What to Look for

  • Hamstrings are comprised of three muscles: the biceps femoris, the semitendinosis, and the semimembranosis
  • Origin of the hamstrings is the ischial tuberosity
  • Avulsion injury at the myotendinous junction causes a small sliver of bone to be separated, which visible on the radiograph.


Pearls for Urgent Care Management and Considerations for Transfer

  • Management is conservative, with initial approach focused on pain relief with crutches, decreased activity and non-opioid analgesia
  • Surgery is rarely required
  • Follow up with orthopedics or primary care and return to activity within 4-6 weeks


Acknowledgment: Images courtesy of Teleradiology Specialists.

A 42-Year-Old Woman with Sudden Hip Pain
Share this !