Chapter 21 - Orthopedic Surgery

Abduction

Move away from the midline

AC Joint

Pectorial girdle at the top of the shoulder

Adduction

moving toward the midline

Amphiarthrosis

A joint that is slightly moveable

Avascular necrosis

Temporary or permanent cessation of blood to the bones

Cancellous bone

Bone tissue found at the end of bones - lining the medullary marrow cavity

Cartilage

Non-vascular fibrous connective tissue

Comminuted

Bone fracture with three or more fragments

Compartmental syndrome

Elevation of tissue pressure within a closed fascia compartment

Compound fracture

Bone fragment punctures the skin and exposes the bone

Cortical bone

Type of bone tissue that is hard and dense and surrounds the marrow cavity

Delayed union

Delay in the healing of the ends of a fracture

Diathrosis

Freely moveable joint

Distraction

Separation of joint surfaces by extension without injury or dislocation of the parts

Epiphysis

Proximal portion of a long bone

Flexion

bending of a joint

Ligament

A band of fibrous tissue composed of collagen that connects bone to bone

Malunion

he joining of the fragments of a fractured bone in a faulty position, forming an imperfect alignment, shortening, deformity, or rotation

Marrow

Semisolid tissue found in the spaces of cancellous bone; there are two types: red bone marrow and yellow bone marrow

Non union

Failure to unite as in a fracture that fails to heal

Oteogensis

Development of bone tissue

Proximal

Nearer to the origin of the structure

Shoulder joint

The ball-and-socket joint composed of the head of the humerus that rests in the glenoid fossa

Splint

A rigid device that is placed on one side of an extremity to immobilize and support while healing takes place; available in many forms (plastic, wood, metal, plaster)

Valgus

bent or twisted away from the midline

Cancellous

Produces RBC and WBC ad platelets

Cortical

Hard bone- cortical found in a diaphysis or shafts of long bones

Bursa

Small sac lubricates for joint movement

Irregular bones

Vertebrae and facial bones

Red bone marrow

Spongy bone contains trabeculae - found in epiphysis and in center of flat bones

Short bones

Carpal and tarsal bones

Flat bones

Ribs, sternum and cranial bones

Yellow bone marrow

Fat center of shafts in adults

Joint

Articulation

Epiphyseal plate

Area of active bone growth

Periosteum

Covering of bone anchors tendons and ligaments; nourishes bone

Tendon

Connects muscle to bone

Ligament

Connects bone to bone

Sesamoid bone

Found within tendons (ie. atella and ball of foot)

Long bones

Humerus, femur, tibia and fibula

Define hematopoietic tissue

Tissue in which there is a development of blood cells or other formed elements - found in skeletal bones

Name two amphiarthrosis joints

Symphysis pubis and sternoclaviular joints

What is a diarthrosis joint

Freely movable joint

List 5 types of diarthrosis joints

1. Pivot Joint (elbow)
2. Gliding joint (carpals of wrist)
3. Saddle joint (trapezium of wrist)
4. Ball and socket
5. Condyloid joint: temporomandibular joint

Which sesamoid bone is found in the knee

Patella

Pronate

Turn downward (palm of hand)

Supinate

Turn upward (palm of hand)

Dorsiflexion

to bend foot upward at the ankle

Plantar flexion

To bend foot downward at the sole

Internal rotation

Point the toes or flex arm inward or rotate toward the midline

External rotation

Turn or flex/rotate the toes or arm away from the midline