Extensor Mechanism Disruption in Knee Dislocation

Michael O'malley, Patrick Reardon, Ayoosh Pareek, Aaron Krych, Bruce A Levy, Michael J. Stuart

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Disruption of the knee extensor mechanism is a challenging injury with no clear consensus on optimal treatment. Although rare in the setting of knee dislocations, these injuries should not be overlooked. Acute, complete rupture of either the quadriceps or patellar tendon necessitates primary repair with or without augmentation. Surgical management may also be required in the setting of a partial tear if a significant extensor lag is present or nonoperative treatment has failed. Tendon augmentation is used during primary repair if the native tissue is inadequate or after a failed primary repair. The purpose of this study is to evaluate extensor mechanism disruption incidence, injury patterns, associated injuries, and surgical options, including a novel tendon augmentation technique. This procedure consists of primary patellar or quadriceps tendon repair with semitendinosus autograft augmentation utilizing a distal or proximal patellar socket. Advantages of repair with tendon augmentation include accelerated rehabilitation, decreased risk of patellar fracture from transverse or longitudinal bone tunnels, and less hardware complications. We recommend consideration of this technique for selected cases of acute extensor mechanism disruption in the setting of tibiofemoral dislocation.

Original languageEnglish (US)
JournalThe journal of knee surgery
DOIs
StateAccepted/In press - Oct 10 2015

Fingerprint

Knee Dislocation
Tendons
Knee Injuries
Patellar Ligament
Intraoperative Complications
Autografts
Wounds and Injuries
Tears
Rupture
Knee
Rehabilitation
Bone and Bones
Incidence
Therapeutics

Keywords

  • extensor mechanism disruption
  • knee dislocation

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Extensor Mechanism Disruption in Knee Dislocation. / O'malley, Michael; Reardon, Patrick; Pareek, Ayoosh; Krych, Aaron; Levy, Bruce A; Stuart, Michael J.

In: The journal of knee surgery, 10.10.2015.

Research output: Contribution to journalArticle

O'malley, Michael ; Reardon, Patrick ; Pareek, Ayoosh ; Krych, Aaron ; Levy, Bruce A ; Stuart, Michael J. / Extensor Mechanism Disruption in Knee Dislocation. In: The journal of knee surgery. 2015.
@article{623535d9a6f942949299721bf286a723,
title = "Extensor Mechanism Disruption in Knee Dislocation",
abstract = "Disruption of the knee extensor mechanism is a challenging injury with no clear consensus on optimal treatment. Although rare in the setting of knee dislocations, these injuries should not be overlooked. Acute, complete rupture of either the quadriceps or patellar tendon necessitates primary repair with or without augmentation. Surgical management may also be required in the setting of a partial tear if a significant extensor lag is present or nonoperative treatment has failed. Tendon augmentation is used during primary repair if the native tissue is inadequate or after a failed primary repair. The purpose of this study is to evaluate extensor mechanism disruption incidence, injury patterns, associated injuries, and surgical options, including a novel tendon augmentation technique. This procedure consists of primary patellar or quadriceps tendon repair with semitendinosus autograft augmentation utilizing a distal or proximal patellar socket. Advantages of repair with tendon augmentation include accelerated rehabilitation, decreased risk of patellar fracture from transverse or longitudinal bone tunnels, and less hardware complications. We recommend consideration of this technique for selected cases of acute extensor mechanism disruption in the setting of tibiofemoral dislocation.",
keywords = "extensor mechanism disruption, knee dislocation",
author = "Michael O'malley and Patrick Reardon and Ayoosh Pareek and Aaron Krych and Levy, {Bruce A} and Stuart, {Michael J.}",
year = "2015",
month = "10",
day = "10",
doi = "10.1055/s-0035-1568991",
language = "English (US)",
journal = "Journal of Knee Surgery",
issn = "1538-8506",
publisher = "Thieme Medical Publishers",

}

TY - JOUR

T1 - Extensor Mechanism Disruption in Knee Dislocation

AU - O'malley, Michael

AU - Reardon, Patrick

AU - Pareek, Ayoosh

AU - Krych, Aaron

AU - Levy, Bruce A

AU - Stuart, Michael J.

PY - 2015/10/10

Y1 - 2015/10/10

N2 - Disruption of the knee extensor mechanism is a challenging injury with no clear consensus on optimal treatment. Although rare in the setting of knee dislocations, these injuries should not be overlooked. Acute, complete rupture of either the quadriceps or patellar tendon necessitates primary repair with or without augmentation. Surgical management may also be required in the setting of a partial tear if a significant extensor lag is present or nonoperative treatment has failed. Tendon augmentation is used during primary repair if the native tissue is inadequate or after a failed primary repair. The purpose of this study is to evaluate extensor mechanism disruption incidence, injury patterns, associated injuries, and surgical options, including a novel tendon augmentation technique. This procedure consists of primary patellar or quadriceps tendon repair with semitendinosus autograft augmentation utilizing a distal or proximal patellar socket. Advantages of repair with tendon augmentation include accelerated rehabilitation, decreased risk of patellar fracture from transverse or longitudinal bone tunnels, and less hardware complications. We recommend consideration of this technique for selected cases of acute extensor mechanism disruption in the setting of tibiofemoral dislocation.

AB - Disruption of the knee extensor mechanism is a challenging injury with no clear consensus on optimal treatment. Although rare in the setting of knee dislocations, these injuries should not be overlooked. Acute, complete rupture of either the quadriceps or patellar tendon necessitates primary repair with or without augmentation. Surgical management may also be required in the setting of a partial tear if a significant extensor lag is present or nonoperative treatment has failed. Tendon augmentation is used during primary repair if the native tissue is inadequate or after a failed primary repair. The purpose of this study is to evaluate extensor mechanism disruption incidence, injury patterns, associated injuries, and surgical options, including a novel tendon augmentation technique. This procedure consists of primary patellar or quadriceps tendon repair with semitendinosus autograft augmentation utilizing a distal or proximal patellar socket. Advantages of repair with tendon augmentation include accelerated rehabilitation, decreased risk of patellar fracture from transverse or longitudinal bone tunnels, and less hardware complications. We recommend consideration of this technique for selected cases of acute extensor mechanism disruption in the setting of tibiofemoral dislocation.

KW - extensor mechanism disruption

KW - knee dislocation

UR - http://www.scopus.com/inward/record.url?scp=84949527077&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84949527077&partnerID=8YFLogxK

U2 - 10.1055/s-0035-1568991

DO - 10.1055/s-0035-1568991

M3 - Article

JO - Journal of Knee Surgery

JF - Journal of Knee Surgery

SN - 1538-8506

ER -