Patellar tendon rupture: Difference between revisions

(Additional features)
(Additional imagingh)
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*Complete tears lead to absent straight leg raise while supine or extension of the knee again
*Complete tears lead to absent straight leg raise while supine or extension of the knee again


==Imaging==
==Associated Conditions==
*High-riding patella may be seen on lateral w/ patellar tendon rupture
[[Patella fracture]]
[[Patella dislocation]]
[[Patellar Tendinitis (Jumper's knee)]]
 
==Work Up==
*Ultrasound
**Separation of the tendon can be visualized
*X-ray
**Patella alta (or high-riding patella) is consistent with patella tendon rupture
**Patella baja/infera (or low-riding patella) is consistent with quadriceps tendon rupture


==Management==
==Management==
*Ortho consult in the ED
*Ortho consult in the ED
*Operative repair advised within 7 days


==Source==
==Source==
*Tintinalli
*Tintinalli
*Uptodate
*Wheeless' Textbook of Orthopaedics


[[Category:Ortho]]
[[Category:Ortho]]

Revision as of 18:30, 29 December 2014

Background

  • Occurs via forceful contraction of quadriceps muscle or falling on flexed knee
  • Quadriceps rupture proximal to the patella while patellar tendon ruptures are distal
  • Typically occur 2cm from insertion on patella
  • Patellar tendon rupture
    • Pts <40yr w/ history of tendinitis or steroid injections
  • Quadriceps tendon rupture
    • Pts >40yr

Clinical Features

  • Sudden "pop" or tearing
  • Diffuse swelling
  • Defect may be palpable above or below the patella
  • Partial tears lead to difficulty extending the knee
  • Complete tears lead to absent straight leg raise while supine or extension of the knee again

Associated Conditions

Patella fracture Patella dislocation Patellar Tendinitis (Jumper's knee)

Work Up

  • Ultrasound
    • Separation of the tendon can be visualized
  • X-ray
    • Patella alta (or high-riding patella) is consistent with patella tendon rupture
    • Patella baja/infera (or low-riding patella) is consistent with quadriceps tendon rupture

Management

  • Ortho consult in the ED
  • Operative repair advised within 7 days

Source

  • Tintinalli
  • Uptodate
  • Wheeless' Textbook of Orthopaedics