Basic MRI Musculoskeletal Anatomy Musculoskeletal MRI Indications Sport

Basic MRI Musculoskeletal Anatomy

Musculoskeletal MRI Indications • • • Sport related injuries Mensical abnormalities Osteonecrosis Bone marrow abnormalities Soft tissue masses

Musculoskeletal MRI Advantages • • Superior soft tissue contrast Mutliplanar Non invasive No ionizing radiation

Musculoskeletal MRI Disadvantages • Expensive • Limited availability • Claustrophobia

Musculoskeletal MRI Disadvantages • Artifacts (Metal foreign objects) • Relatively long examination • Calcifications

FAT Bone marrow Blood Contrast

Air Cortical bone Tendon Ligament Blood vessels

Muscles Hyaline Cartilage Fluid

MRI Knee

ACL

PCL

ACL Patellar tendon

ACL

Crescent shaped fibro-cartilage. Their main functions are shock absorption and load–bearing. Lateral Meniscus Medial Meniscus

MRI the Shoulder

MRI Shoulder Indications • • • Rotator cuff tear Shoulder instability Osteonecrosis Infection Neoplasm

What is the rotator cuff? • A group of flat tendons that surround the front, back, and top of the shoulder joint like a cuff on a shirt sleeve

Rotator cuff muscles • • Supraspinatous Infraspinatous Teres minor Subscapularis

neurovascular bundle

biceps tendon infraspinatus deltoid subscapularis

suprapinatus long head of the biceps infraspinatus subscapularis tendon teres minor muscle

bicipital tendon glenoid labrum subscapularis tendon

Clavicle Acromion Subscapularis

MRI of the Ankle

MRI Ankle: • • • Ligament Tendon Articular cartilage Infection Soft tissue masses Bone marrow Why?

Ankle Ligaments • Lateral collateral • Medial collateral • Syndesmotic ligamentous complex

Lateral Collateral Ligament • Anterior talofibular • Posterior talofibular • Calcaneofibular ligament

Talofibular ligaments

Calcaneofibular ligament

Deltoid ligament

MRI of the Hip Joint

Sartorius muscle

Iliacus muscle

Rectus femoris muscle

Tensor fascia lata