It is an uncommon cause of chronic lateral ankle pain 6 typically seen in athletes 3 5.
Anterolateral lateral gutter.
Anterolateral impingement of the ankle is a relatively uncommon cause of chronic lateral ankle pain produced by entrapment of abnormal soft tissue in the anterolateral gutter of the ankle 2 4.
The patient is supine.
The anterolateral recess of the ankle joint also known as the anterolateral gutter is a triangular or pyramidal formed topographical space of the anterolateral aspect of the ankle 1 4.
Ament lcl din the lateral gutter.
The space may contain joint fluid in asymptomatic individuals and is defined by the following anatomical structures 1 4.
The osteochondral loose body likely originates from a full thickness sharply marginated chondral loss along the anterior aspects of the tibial plafond measuring 6 x 8 mm in dimension.
Anterolateral impingement syndrome of the ankle is caused by entrapment of the hypertrophic soft tissue in the lateral gutter.
However inadequate immobilization and rehabilitation may lead to chronic inflammation in the ligament resulting in formation of scar tissue.
A e arthroscopic views of the lateral gutter structures when viewed from inside.
The arthroscope is introduced through a high anterolateral portal while the limb is in the figure of 4 position.
These likely present sources of anterolateral gutter impingement.
The impingement process begins when an inversion sprain tears the anterior talofibular and or the calcaneofibular ligament.
There is scar tissue and synovitis within the anterolateral gutter as well as a 5 mm osteochondral loose body.
Anterolateral impingement is thought to occur subsequent to relatively minor inversion injuries of the ankle.