DPT 5000 Quiz 1 Flashcards
Elements of the Patient/Client Management Model
Examination --> gather data Evaluation --> analyze the date Diagnosis --> PT DIAGNOSIS Prognosis/ Plan of Care --> determine pt's potential goals Intervention --> Outcomes --> Results/ Discharge pt
Functions of Bone
- Support
- Protection of Vital Organs
- Mechanical Leverage
- Storage for Minerals (calcium)
- New blood cell formation - bone marrow
Cortical Bone; % of skeleton; Constructed with what two structures?
(Compact or Dense Bone) 80% of Skeleton Lamellae w/ Haversion canal Canaliculi (Volkmann's) Thicker in the middle of long bones for added strength
Lamellae
Collagen fibers forming concentric rings
Haversion canal
Core center of lamellae, contain blood vessels and nerves (need to know for healing) –> allows for circulation
Canaliculi (Volkmann’s)
Tiny canals within lamellae for diffusion of nutrients and waste to and from haversian canals
Cortical Bone- X-ray Images
Treatments (Cortical Screws)
X-ray shows more dense white–> representing thicker bone
Orthopaedic surgeons try to anchor screws to cortical bone (cortical screws). Goes through both side of hard bone.
When bone is broken and treated with rod implant –> bone is weight bearing!
Medullary Canal
- Manufacturing of RBCs in children, contains yellow fatty marrow in adults.
- Ream out and place metal rods for fixation of fxs & amp; joint replacement stems
- X-ray examples: femur fx, tibia fx, Total Hip Replac, THA w/ fx from inserting stem
Periosteum
Fibrous membranes that cover bones, (pain) nerves, and blood vessels pass thru.
- Contains pain nerves so trauma to bone is very painful.
- This is what you palpate (tibia, elbow, skull, malleoli)
- Fx through periosteum very painful. Thicker in children, so fractures are sometimes less serious than adults.
Cancellous (spongy) Bone; % skeleton; Structure
20% of skeleton
Lamallae deposited in parallel (vs concentric rings)–> called Trabeculae- irregular arranged w/ lattice work or woven mesh.
Bone marrow contained between layers of mesh. Thin layers, but show layers of bone stress (hip x-ray)
Where is cancellous bone located and what areas have the highest density.
Found @ end of long bones, near joint.
Highest Density: Proximal femur, distal radius, vertebral body.
These are often the sites of osteoporosis fracture
Cancellous bone fractures
Bone becomes compacted w/ fxs and can be more difficult to manage.
Impaction or compression fxs.
X-ray examples: tibial plateau fx, femoral neck fx, thoracic vertebrae compression fx, humeral head dislocation
Compression Fractures
Cancellous bone is susceptible to these. (Rather than snapping fractures)
- WAY more difficult to manage
- long time b4 weight bearing
Osteoarthritis Breaks
most common where?
Hip, Wrist, Spine
Use of Medullary Canal for treating fractures
- Ream out and place metal rods for fixation of fxs & joint replacement stems
- Old method of fx management: traction & bedrest for 3mo.
- New method: rod fixation and discharge in 2-3 days.