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Document Title: Calabrese-ELKR-Ch11-2000.shtml
Article Title: Posteralateral Instability
Author: Gary J. Calabrese, PT, and John A. Bergfeld, MD
Publication: Knee Ligament Rehabilitation, edited by Todd Ellenbecker (published by Churchill Livingstone, 2000), pages 160-165.
Date: 2000
Keywords: female athlete knee-injury prevention, ACL tearing.
(Reference-denoting numbers appear in the same font and point size as the document text. As with all Knee Library documents, this article is provided in full-text form, complete with all figures and tables.)
Comments: The posterolateral complex (also known as the posterolateral structures [PLS], the posterolateral corner [PLC], or the arcuate complex) is very important to reliable knee functioning. Sadly, the PLC is often overlooked or forgotten, especially in cases where the doctor focuses only on the cruciate ligaments (ACL and PCL). The PLC includes the LCL (lateral collateral ligament, which is also known as the fibular collateral ligament) as well as several smaller ligaments (including the arcuate, popliteofibular and fabellofibular ligaments), as well as several other structures. This chapter explains the functional anatomy and biomechanics of these structures and how they work together. Given the numerous structures involved, careful diagnosis of PLC problems is essential. Surgical and nonsurgical rehabilitation options are discussed. Severe damage to the PLC is usually treated via careful reconstruction of each of the affected components. Due to the tremendous complexity of this area of the knee, such work requires a surgeon highly experienced specifically with this type of work.
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