AT Exam 3

AT Exam 3 - AT Exam 3: The Knee 25/03/2008 07:40:00 Anatomy...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: AT Exam 3: The Knee 25/03/2008 07:40:00 Anatomy Bones: o Tibia/tibial plateau o Fibula o Femur * medial/lateral Condyles & epicondyles o Patella o Tibial Tuberosity o Fibular Head o Epicondyles: o Condyles: Joints: o Hinge Joint- tibiofemoral o Patella-femoral Joint o Tibiofibular Joint * Distal * Proximal Ligaments o Anterior Cruciate Ligament (ACL): prevents anterior movement of tibia on femur o Posterior Cruciate Ligament (PCL): prevents posterior movement of tibia on femur o Medial Collateral Ligament (MCL): protects from valgus stress o Lateral Collateral Ligament (LCL): protects joints from varus stress Meniscus o Fibrocartilage- cushion/shock absorbers- Medial & Later components (attachments on tibia)- Mostly avascular (not a lot of blood supply) * divided into 3 parts: 1. Red-Red: [outer] more vascular (not as high risk) 2. Red-White: [middle] Little blood supply 3. White-White: [inner] No blood supply (not going to heal) More Anatomy o Joint Capsule/Synovial Membrane: Holds and Protects knee (MCL & LCL) o Bursa: in b/w structures * subject to injury * deep infrapatella bursa o Patella Tendon o Iliotibial Band (ITB): lateral thigh * crosses knee joint * inserts on lateral side of tibia Musculature Quadriceps: (Quadriceps Femoris) o Vastus Lateralis o Vastus Medialis o Rectus Femoris Hamstrings o Semi-membranosus (medial) o Semi-teninosis (medial) o Biceps femoris: inserts on fibular head, runs laterally Adductors: inner thigh/groin o Insert on hip Abductors: outer thigh/hip Gastrocnemius: origin above the knee joint Soleus: origin below knee joint Knee Movement: Flexion (foot to butt): Hamstrings Extension (kick foot out): Quad Femoris Internal rotation: semimembranosus & semitendinosis (muscles attaching on medial side) External rotation: Biceps Femoris Terminology Genu Varum: bow legs Genu Valgum: knock kneesknees toward midline Genu Recurvatum: Hyperextensionstraight-legged Assessing Knee Injuries H istory O.P.S. o Acute: popping, crunching, lock up? o Chronic: locking/clicking in knee, stairs hurt *meniscus tear: grinding, clicking o Critical points: *Locking, clicking = meniscus *Knee giving out = ACL/PCL injury mainly H. O bservation P.S. o Swelling o Atrophy o Ambulation o ROM o Obvious deformities o Bilateral comparison H. O. P alpation S o Proper athlete positioningknee on table, feet on table (stable) o LCL: cross legs-palpate lig. o MCL: (origin-medial femoral epicondyle) insertion-medial tibial flare o Quads, Hamstings H. O. P. S pecial tests o Varus Stress Test * tests LCL stability * looking for laxity, pain, swelling * hand on medial side of knee, other on lateral side of calf, moving...
View Full Document

This note was uploaded on 04/07/2008 for the course AT 157 taught by Professor Kit during the Spring '08 term at Vermont.

Page1 / 19

AT Exam 3 - AT Exam 3: The Knee 25/03/2008 07:40:00 Anatomy...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online