Use of an extracapsular stabilization technique to repair cruciate ligament ruptures in two avian species

Sathya K. Chinnadurai, Gary Spodnick, Laurel Degernes, Ryan S. Devoe, Denis J Marcellin-Little

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


An extracapsular stabilization technique was used to repair cruciate ligament ruptures in a trumpeter hornbill (Bycanistes bucinator) and an African grey parrot (Psittacus erithacus). The hornbill demonstrated cranial drawer motion and severe rotational instability of the stifle from ruptures of the cranial and caudal cruciate ligaments and stifle joint capsule. The luxation was reduced, and the fibula was cranially transposed, in relation to the tibiotarsus, and anchored with 2 positive profile threaded acrylic pins. A lateral extracapsular stabilization was then performed. The African grey parrot had a traumatic stifle luxation, and an open reduction and a lateral extracapsular stabilization were performed. Both birds regained function of the affected leg by 1 month after surgery. Extracapsular stabilization allows motion of the stifle joint to be maintained during the postoperative recovery period, an advantage over rigid stabilization. Maintaining motion in the stifle joint facilitates physical therapy and can aid in full recovery after avian stifle injuries.

Original languageEnglish (US)
Pages (from-to)307-313
Number of pages7
JournalJournal of Avian Medicine and Surgery
Issue number4
StatePublished - Dec 1 2009
Externally publishedYes


  • African grey parrot
  • Avian
  • Bycanistes bucinator
  • Cruciate ligament
  • Extracapsular stabilization
  • Fibula
  • Lateral suture technique
  • Orthopedics
  • Psittacus erithacus
  • Stifle joint luxation
  • Trumpeter hornbill

ASJC Scopus subject areas

  • Small Animals


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