The effect of isolated popliteus tendon complex injury on graft force in anterior cruciate ligament reconstructed knees

Hemanth R. Gadikota, Jong Keun Seon, Jia Lin Wu, Thomas J. Gill, Guoan Li

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Failure to diagnose injury to the posterolateral structures has been found to increase the forces experienced by the anterior cruciate ligament (ACL) and ACL grafts which may cause their subsequent failure. An isolated injury to the popliteus complex (PC) consisting of the popliteus tendon and popliteofibular ligament is not uncommon. Therefore, the purpose of this study was to discover if an isolated injury to the PC can significantly affect the forces experienced by the ACL graft under external loading conditions. We hypothesised that, under external tibial torque, the ACL graft will experience a significant increase in force, in knees with PC injury compared to the intact PC condition. Under varus tibial torque (10 N m), we observed minimal changes in the varus tibial rotation due to isolated sectioning of the PC in an ACL reconstructed knee (P> 0.05). Consequently, no significant increase in the ACL graft force was observed under varus tibial torque. In contrast, sectioning the PC resulted in a significant increase in the external tibial rotation compared to the intact PC knee condition under the external rotational tibial torque (5 N m) at all flexion angles (P

Original languageEnglish
Pages (from-to)1403-1408
Number of pages6
JournalInternational Orthopaedics
Volume35
Issue number9
DOIs
Publication statusPublished - Sep 2011
Externally publishedYes

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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