Patho-Pharm Final Flashcards
Pathologic Fractures
Fracture resulting from an abnormality, commonly observed in hospitals. That is caused by abnormalities such as cancerous growth or lack of blood supply.
Stress Fractures
result from repetitive stress, common in athletes or those with excessive physical activity. Rest is crucial.
Transchondral Fractures
Breaking through cartilage in a joint, leads to potential long-term issues. Separation of a portion of articular cartilage. Lifetime joint problems and limitations affecting daily activities. Breaking through cartilage can lead to irreversible consequences, especially in the wrist.
simple fracture
Basic break through a bone. Reputation built on anatomically aligning fractures for optimal healing.
Comminuted Fracture
Bone broken into at least three pieces. (Butterfly Fragment). Central piece resembling the wings of a butterfly.
Expertise crucial in reconstructing comminuted fractures.
Open compound fracture
Bone breaks through the skin, exposing it to the open air.
High potential for infection, always taken to the operating room.
Thorough examination is crucial to avoid missed open fractures.
Green stick fracture
Common in young individuals; bone bends but doesn’t fully break.
Often seen in children, where the bone can be easily straightened. One side of the bone typically remains intact.
Transverse Fracture
Straight-across break; offers some stability.
Spiral fracture
Twisting break; lacks stability, requires external or internal fixation.
Oblique fracture
Diagonal break; prone to sliding displacement.
Bone Repair Process
Periosteum disruption
Clot Formation
Inflammatory response
Vascular Tissue formation
Osteoblasts activation
Collegen and mineralization
Healing
Periosteum Significance
Outer surface of the bone with rich blood supply.
Muscles on the Bone
muscles determine the shape of the bone.
Muscle effect on fractures
Muscles pull fractured bones towards the strongest muscle group.
Shortening and external rotations
Shortening
seen in the elderly when a fractured hip leads to leg shortening and external rotation.
Closed reduction
externally
Open reduction
Internally or externally
reduction is used for
proper healing and alignment
ORIF open reduction internal fixation
Surgical procedure involving bone realignment and internal hardware. Used in complex fractures requiring precise realignment and stabilization.
Plates, screws, wires, or pins used for internal fixation. Surgeons cut along the bone, manipulate fragments, and use hardware for stability. Must go under any arteries and muscles.
Intramedullary Rods
common in fractures of long bones, typically remains in body for entire life.
External fixations
Pins inserted into the bone and connected to an external device for stabilization. easily removed with a low infection rate.
anterior dislocation
common, typically in the front
posterior dislocation
usually in severe trauma cases, often from accidents
Subluxations Defined
Partial joint movement, typically less than 20 degrees. Usually due to joint degeneration