Musculoskeletal systemMusculoskeletal system
disordersdisorders
Reny jose
Musculoskeletal System ReviewMusculoskeletal System Review
Anatomy:
Skeletal system
◦ Bones
◦ Cartilage
◦ Tendons
◦ Ligaments
◦ Joints
Muscular system
◦ Muscles
Physiology:
Calcium storage
Hematopoesis
Protection
Form/framework
Joint articulation
Skeletal systemSkeletal system
◦ Endoskeleton
 206 bones
 Axial skeleton – 80 bones
 Skull
 Vertebral column
 Thorax
 Appendicular skeleton – 126 bones
 Bones of extremities
 Shoulders
 pelvis
BonesBones
Long – tibia, femur
Short – carpals, tarsals
Flat – ribs, cranium
Irregular – ear ossicles, facial bones
Long bonesLong bones
Flat bonesFlat bones
Irregular bonesIrregular bones
Gross anatomyGross anatomy
Microscopic anatomyMicroscopic anatomy
Microscopic anatomyMicroscopic anatomy
Composition of boneComposition of bone
Collagen (steel rod)
◦ tensile strength
Inorganic salts ( cement, sand & gravel)
◦ Hydroxyapatite (calcium and phosphate)
 Withstand compression
Cells
◦ Osteoblast
◦ Osteocytes
◦ osteoclasts
ArticulationsArticulations Synovial joints
Fibrous jts.Fibrous jts.
Suture jointsSuture joints
Primary cartilaginous joints (= synchondroses):
Cartilaginous jointsCartilaginous joints
Supporting structuresSupporting structures
Tendon sheathsTendon sheaths
LigamentsLigaments
Physiology:Physiology:
Calcium storage
Hematopoesis
Protection
Form/framework
Joint articulation
Bone is dynamic–Bone is dynamic–
continual activity of osteoblasts and
osteoclasts
AssessmentAssessment
History
◦ Biographic and demographic data
 Age
 Gender
 Place of living
 Occupation
 Hobbies
Current healthCurrent health
Chief complaint
◦ Pain
◦ Joint stiffness
◦ Swelling
◦ Deformity / immobility
◦ Infection
◦ Sensory changes
PainPain
5th vital sign
Location / duration / radiation
Alleviating / aggravating factors
OTC
Associated infection
Rate on 0-10 pain scale
Aches – muscular
Sharp pain – fracture or infection
Throbbing – bone related
Joint stiffnessJoint stiffness
Local / systemic
Associated muscle weaknesss
Specific joints
Constant / episodic
Alleviating / aggravating factors
Crepitus
Deformity
Sensory changesSensory changes
Fractures / tumors/ surgical swelling
h/o back pain
◦ Injury
Tingling
Burning
Radiating
weakness
Deformity / immobilityDeformity / immobility
Location
Sudden / gradual ( tumor)
ADLs limited
Assistive device use
ROM - goniometer
InfectionInfection
Location
Duration
Implanted device
Previous history
Fever/ chills
Pain under cast
Review of systemsReview of systems
Past Medical- surgical history
Childhood h/o asthma, seizure (osteomalacia),
DM, trauma
Family history
Allergy
Medications
Dietary habits
Social history
Review of systemsReview of systems
Reactive arthritis
◦ Pain / burning urination
◦ conjuctivitis
Gout
◦ Tachycardia / hypertension
Carpel tunnel syndrome
◦ Wasting of thenar muscle
Electrolyte imbalance
◦ Paresthesia, increased DTR
Rheumatic fever
Physical examinationPhysical examination
Observe, inspect and palpate
◦ Muscle mass
 Symmetry
 Involuntary movements
 Tenderness
 Tone and strength
◦ Joints
◦ Bones
 Deformity
 Limb length discrepancy

General examinationGeneral examination
Gait
Body mobility
◦ Upper body
◦ chest, back and lower extremity
Posture
◦ Body build, contours alignment, spine
Joint motion
Balance
Spinal deformities
GaitGait
1. The base is as wide as the shoulder
width
2. Foot placement is accurate
3. Walk is smooth, even and well-balanced
4. Associated movements, such as arm
swing, are present.
Gait AbnormalitiesGait Abnormalities
Unusual and uncontrollable walking
patterns, usually caused by disease or
injury.
◦ Propulsive
◦ Scissors
◦ Spastic
◦ Steppage
◦ Waddling
StanceStance
Symmetrical
Width
Steady
Assistive Devices
PosturePosture
Normal -
Comfortably erect
Look for straight lines
across body parts
Normal Aging
Lordosis - Increased Curvature of the SpineLordosis - Increased Curvature of the Spine
Kyphosis is a curving of the spine that causes aKyphosis is a curving of the spine that causes a
bowing of the back, which leads to a hunchbackbowing of the back, which leads to a hunchback
or slouching posture.or slouching posture.
Scoliosis – curvature of the spine awayScoliosis – curvature of the spine away
from middle or sidewaysfrom middle or sideways
Muscle AtrophyMuscle Atrophy
kyphosiskyphosis
kyphosiskyphosis
ScoliosisScoliosis
Genuvarum and genuvalgumGenuvarum and genuvalgum
MusclesMuscles
Muscle mass
◦ Symmetrical, smooth and firm
Strength
◦ 0 -5 scale

Joints and bonesJoints and bones
Examination of JointsExamination of Joints
Inspection
◦ Symmetry
◦ Size and contour
◦ Redness
◦ Atrophy
◦ Deformity
◦ Swelling
Palpation
◦ Crepitus, thickening, swelling or tenderness
◦ ROM
Range of MotionRange of Motion
Full Mobility of each
joint
Deliberate, accurate,
smooth, and
coordinated
No involuntary
movement
GoniometerGoniometer
Related systemsRelated systems
Neurovascular
◦ Pain
◦ Poikilothermia
◦ Pulselessness
◦ Paralysis
◦ Paresthesia
◦ Pallor
◦ Capillary refill
Peripheral nerve assessment
Musculoskeletal System: RadiographicMusculoskeletal System: Radiographic
ExaminationsExaminations
Standard x-ray
CAT scan
◦ soft tissue tumors, spinal fractures
Dual-energy X-ray Absorptiometry(DEXA)
◦ Measures bone loss
◦ Gold std. test for osteoporosis
MRI
◦ Details of bone, ligaments, tendons, muscles
◦ CI – metal implants
Standard x-ray & CAT scanStandard x-ray & CAT scan
CAT scanCAT scan
Dual-energy X-ray Absorptiometry(DEXA)Dual-energy X-ray Absorptiometry(DEXA)
MRIMRI
MRIMRI
Lachman’s testLachman’s test
Evaluates injury to the anterior cruciate
ligament
McMurray’s TestMcMurray’s Test
For evaluating meniscal injuryFor evaluating meniscal injury
patient lie supine with knee flexed.
The examiner places one hand on the heel and
another along the medial aspect of the knee
The knee is extended from a fully flexed
position while internally rotating the tibia.
The test is repeated while externally rotating
the tibia.
A positive sign is indicated by a “popping” and
sensation of symptoms along the joint line, often
accompanied by an inability to fully extend the
knee.
Drawer signDrawer sign
Drawer signDrawer sign
Proximal aspect of
tibia pulled forward
Forward movement
>6 mm – ACL tear
Same maneuver
Pushing back on tibia
– posterior cruciate
ligament injury
Invasive testsInvasive tests
Arthrocentesis
ArthrogramArthrogram

ArthroscopyArthroscopy
Electromyelogram and nerveElectromyelogram and nerve
conduction testconduction test
Musculoskeletal System: OtherMusculoskeletal System: Other
Diagnostic TestsDiagnostic Tests
Indium Scan
◦ Indium III – connected to leukocytes
◦ Determine infections
Bone scans
◦ Injection of radioisotopes
 Detect malignancies
 Stress fracture
 osteomyelitis
Musculoskeletal System: Diagnostic LabMusculoskeletal System: Diagnostic Lab
TestsTests
Measures of inflammation
◦ ANA
◦ CRP
◦ ESR
◦ RF
CBC
Serum Calcium
Serum Phosphorus
Alkaline Phosphatase (ALP)
Musculoskeletal System: Diagnostic LabMusculoskeletal System: Diagnostic Lab
TestsTests
Serum Muscle Enzymes: muscular dystrophy
◦ Creatine Kinase
◦ Lactate dehydrogenase (LDH)
◦ Aspartate aminotransferase (AST)
◦ Aldolase A (ALD)
Musculoskeletal System: Age RelatedMusculoskeletal System: Age Related
ChangesChanges
Decreased bone density
Increased bone prominence
Kyphosis
Cartilage degeneration
Decreased ROM
Muscle atrophy (decreased strength)
Slowed movement

Musculoskeletal assessment

Editor's Notes

  • #42 Gait Abnomalities
  • #47 injuries to the legs, feet, brain, spine, or inner ear Propulsive gait -- a stooped, rigid posture, with the head and neck bent forward Scissors gait -- legs flexed slightly at the hips and knees, giving the appearance of crouching, with the knees and thighs hitting or crossing in a scissors-like movement Spastic gait -- a stiff, foot-dragging walk caused by one-sided, long-term, muscle contraction Steppage gait -- foot drop where the foot hangs with the toes pointing down, causing the toes to scrape the ground while walking Herniated lumbar disk Waddling gait -- a distinctive duck-like walk that may appear in childhood or later in life Hip dysplasia Spinal muscular atrophy
  • #50 Stance widens as they try to steady themselves
  • #53 Treatment    Return to top Treatment depends on the cause of the disorder: Congenital kyphosis requires corrective surgery at an early age. Scheuermann's disease is initially treated with a brace and physical therapy. Occasionally surgery is needed for large (greater than 60 degrees), painful curves. Multiple compression fractures from osteoporosis can be left alone if there is no neurologic problems or pain, but the osteoporosis needs to be treated to help prevent future fractures. For debilitating deformity or pain, surgery is an option. Kyphosis caused by infection or tumor needs to be treated more aggressively, often with surgery and medications. Treatment for other types of kyphosis depends on the cause. Surgery may be necessary if neurological symptoms develop. Expectations (prognosis)    Return to top Adolescents with Scheuermann's disease tend do well even if they need surgery, and the disease stops once they stop growing. If the kyphosis is due to degenerative joint disease or multiple compression fractures, correction of the defect is not possible without surgery, and improvement of pain is less reliable. Complications    Return to top Disabling back pain Neurological symptoms including leg weakness or paralysis Decreased lung capacity Round back deformity
  • #54 There are three general causes of scoliosis: Congenital scoliosis is due to a problem with the formation of vertebrae or fused ribs during prenatal development. Neuromuscular scoliosis is caused by problems such as poor muscle control or muscular weakness or paralysis due to diseases such as cerebral palsy, muscular dystrophy, spina bifida, and polio. Idiopathic scoliosis is of unknown cause, and appears in a previously straight spine. Idiopathic scoliosis in adolescents is the most common type. Some people may be prone to the curving of the spine. Most cases occur in girls. Curves generally worsen during growth spurts. Scoliosis in infants and juveniles are less common. They commonly affect a similar number of boys and girls. Scoliosis may be suspected when one shoulder appears to be higher than the other, or the pelvis appears to be tilted. Untrained observers usually can't notice the curving. Routine scoliosis screening is now done in middle and junior high schools. Many cases, which  previously would have gone undetected until they were more advanced, are now being caught at an early stage. There may be fatigue in the spine after prolonged sitting or standing. Pain will become persistent if irritation results. The greater the initial curve of the spine, the greater the chance the scoliosis will get worse after growth is complete. Severe scoliosis (curves in the spine greater than 100 degrees) may cause breathing problems. Symptoms    Return to top The spine curves abnormally to the side (laterally) Shoulders or hips appearing uneven Backache or low-back pain Fatigue Treatment depends on the cause of the scoliosis, the size and location of the curve, and how much more growing the patient is expected to do. Most cases of adolescent idiopathic scoliosis (less than 20 degrees) require no treatment, but should be checked often, about every 6 months. As curves get worse (above 25 to 30 degrees in a child who is still growing), bracing is usually recommended to help slow the progression of the curve. There are many different kinds of braces used. The Boston Brace, Wilmington Brace, Milwaukee Brace, and Charleston Brace are named for the centers where they were developed. Each brace looks different. There are different ways of using each type properly. The selection of a brace and the manner in which it is used depends on many factors, including the specific characteristics of your curve. The exact brace will be decided on by the patient and health care practioner. A back brace does not reverse the curve. Instead, it uses pressure to help straighten the spine. The brace can be adjusted with growth. Bracing does not work in congenital or neuromuscular scoliosis, and is less effective in infantile and juvenile idiopathic scoliosis. Curves of 40 degrees or greater usually require surgery because curves this large have a high risk of getting worse even after bone growth stops. Surgery involves correcting the curve (although not all the way) and fusing the bones in the curve together. The bones are held in place with one or two metal rods held down with hooks and screws until the bone heals together. Sometimes surgery is done through a cut in the back, on the abdomen, or beneath the ribs. A brace may be required to stabilize the spine after surgery.
  • #65 Each joint is in the book
  • #66 Extension Abduction Adduction Hyperextension Internal rotation External rotation Atrophy Hypertrophy
  • #78 The knee is flexed at 20–30 degrees with the patient supine.[2] The examiner should place one hand behind the tibia and the other grasping the patient's thigh. It is important that the examiner's thumb be on the tibial tuberosity.[3] The tibia is pulled forward to assess the amount of anterior motion of the tibia in comparison to the femur. An intact ACL should prevent forward translational movement ("firm endpoint") while an ACL-deficient knee will demonstrate increased forward translation without a decisive 'end-point' - a soft or mushy endpoint indicative of a positive test. More than about 2 mm of anterior translation compared to the uninvolved knee suggests a torn ACL ("soft endpoint"), as does 10 mm of total anterior translation. An instrument called a "KT-1000" can be used to determine the magnitude of movement in mm. This test can be done in either an on-field evaluation in acute injury, or in a clinical setting when a patient presents for follow-up with knee pain.
  • #79 To perform the test, the knee is held by one hand, which is placed along the joint line, and flexed to complete flexion while the foot is held by the sole with the other hand. The examiner then places one hand on the medial side of the knee to provide a varus stress, pushing knee laterally. The other hand rotates the leg externally while extending the knee.[2] If pain or a "click" is felt, this constitutes a "positive McMurray test" for a tear in the medial meniscus.
  • #81 The Lachman test is a clinical test used to diagnose injury of the anterior cruciate ligament (ACL). It is recognized as reliable, sensitive, and usually superior to the anterior drawer test.[1] The knee is flexed at 20–30 degrees with the patient supine.[2] The examiner should place one hand behind the tibia and the other grasping the patient's thigh. It is important that the examiner's thumb be on the tibial tuberosity.[3] The tibia is pulled forward to assess the amount of anterior motion of the tibia in comparison to the femur. An intact ACL should prevent forward translational movement ("firm endpoint") while an ACL-deficient knee will demonstrate increased forward translation without a decisive 'end-point' - a soft or mushy endpoint indicative of a positive test. More than about 2 mm of anterior translation compared to the uninvolved knee suggests a torn ACL ("soft endpoint"), as does 10 mm of total anterior translation. An instrument called a "KT-1000" can be used to determine the magnitude of movement in mm.