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Chapter-168 Posterolateral Rotatory Instability of the Knee

BOOK TITLE: Textbook of Orthopedics & Trauma (4 Volumes)

Author
1. Pardiwala Dinshaw
2. Kadrekar Sujit
3. BR Yathiraj
ISBN
9789385891052
DOI
10.5005/jp/books/12869_169
Edition
3/e
Publishing Year
2016
Pages
7
Author Affiliations
1. Jiwan-Flat. 7a, Ii LD Ruparel Marg Malabar Hill, Mumbai, Maharashtra, Arthroscopy and Joint Preservation Service; Center for Sports Medicine, Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India, Jiwan-Flat. 7a, Ii LD Ruparel Marg, Malabar Hill, Mumbai, Maharashtra, India, Centre for Sports Medicine; Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra,
2. Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
3. Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, Inida
Chapter keywords
Posterolateral rotatory instability, PLRI, posterior cruciate ligament, PCL, posterolateral corner, PLC, lateral collateral ligament, LCL, anterior cruciate ligament, ACL, chronic reconstruction, reconstruction failure

Abstract

Posterolateral rotatory instability (PLRI) of the knee is a complex and often unrecognized form of knee instability with an overall reported incidence of less than 2% of all acute ligamentous knee injuries. It occurs most commonly in association with injury to the anterior or posterior cruciate ligament (PCL). There is a close structural relationship among the structures of the posterolateral corner (PLC) of the knee. Arcuate ligament complex is defined as the tendinous and ligamentous complex consisting of the lateral collateral ligament (LCL), the arcuate ligament, the popliteus muscle and tendon, and the lateral head of the gastrocnemius. This chapter covers a detailed description of anatomy, biomechanics, mechanism of injury, classification, clinical presentation, examination findings, preoperative planning, treatment, postoperative rehabilitation and complications of PLRI.

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