Chapter 15: Knee Conditions

During a lower leg examination the athletic trainer notes muscle weakness with L3 myotome. Which motion is this

Knee extension

The myotome for knee extension

L3

Which if the following structures resists valgus shearing rotational forces?

Medial collateral ligament

A traction type injury to the tibial apophysis where the patellar tendon attaches onto the tibial tuberosity is called

Osgood Schlatter disease

Which if the following condition typicall develops during pre-adolescences

Osgood-Schlatter disease

The bursa most commonly injured by compressive forces at the knee is the

Prepatellar

The medial meniscus is attached to the medial collateral ligament and to fibers from the

Semimembranosus

The pes anserine is the common attachment of the sartorius, gracilis, and

Semitendinosus

Which of the following tests is used to assess anterolateral instability of the knee

Slocum drawer test

Changing direction during deceleration is a common mechanism injury for the

Acl

The A-angle is the

Angle between a vertical line dividing the patella in half and a second line drawn from the tibial tubercle to the apex of the inferior pole of the patella

Which if the following tests should be performed to confirm a suspected patellar dislocation

Apprehension test

Which nerve in rebates the quadriceps

Femoral

Hyperextension, or a posterior bowing of the knee is

Genu recurvatum

An a angle of ___ has been linked to increased patellafemoral pain

Greater than 35 degrees

Which nerve innervates all of the muscles in the hamstring group except the short head of the biceps?

Tibial

A positive result of a valgus instability test at 30 degrees flexion indicates damage to what ligament

Tibial collateral

Atrophy of the ___ is nearly always evident in patellafemoral dysfunction

Vastus medialis oblique

Which if the following muscles is primarily responsible for resting lateral displacement of the patella

Vastus medialis oblique

When observing a knee injury evaluation the knee should be in __ to relative any strain on joint structure

30 degrees of flexion