Diagnostic Tests for Meniscus injury
Meniscus injury Tests: Book Excerpts
Home Diagnostic Testing
These home medical tests may be relevant to Meniscus injury:
- Nerve Neuropathy: Related Home Testing:
Meniscus injury Diagnosis: Book Excerpts
Tests and diagnosis discussion for Meniscus injury:
In addition to listening to the patient's description of
the onset of pain and swelling, the doctor may perform a physical
examination and take x rays of the knee. The examination may include a
test in which the doctor bends the leg, then rotates the leg outward and
inward while extending it. Pain or an audible click suggests a meniscal
tear. An MRI may be recommended to confirm the diagnosis. Occasionally,
the doctor may use arthroscopy to help diagnose and treat a meniscal
tear.
(Source: excerpt from Questions and Answers About Knee Problems: NIAMS)
Diagnostic Tests for Meniscus injury: Online Medical Books
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BACK PAIN:
DIAGNOSTIC WORKUP
(Algorithmic Diagnosis of Symptoms and Signs)
All patients with back pain need to have a CBC, urinalysis, and probably a urine culture, as well as a chemistry panel. A sedimentation rate should be done if rheumatoid arthritis is suspected. All patients should also have plain x-rays of the thoracic and/or lumbar spine. It is very important to get anterior posterior views, as well as oblique and lateral views. At this point it is wise to observe the results of conservative therapy before ordering expensive diagnostic tests. If there is doubt about the diagnosis at this point, a neurologic or orthopedic specialist may be consulted. If there is radiation of the pain into the extremities or around the trunk and definite neurologic findings, one should proceed to a CT scan or MRI immediately. The CT scan costs about half as much as the MRI and usually will show any significant herniated disks, primary or metastatic tumor. Even without radiation of pain into the extremities or definite neurologic findings, a patient with persistent back pain should have a CT scan or MRI. EMG will be useful in identifying radiculopathy.
When all these studies are negative, it might be wise to get a bone scan because this will show the increased uptake of the sacroiliac joints in rheumatoid spondylitis. Also, one should test for the HLA B27 antigen. In the event that all of the above studies are negative, the possibility of a non-neurologic condition or nonorthopedic condition causing the back pain should be considered. Perhaps abdominal ultrasound should be done to rule out an aortic aneurysm. Perhaps a pelvic tumor or prostatic tumor should be reconsidered. Perhaps there is a pancreatic tumor that is causing the back pain. Occasionally, combined myelography and CT scan is the only way to identify a lesion. Exploratory surgery is rarely necessary. Older patients should have a serum protein electrophoresis (for multiple myeloma) and acid phosphatase or PSA to rule out prostatic carcinoma.
» READ BOOK EXCERPT ONLINE »
Source: Algorithmic Diagnosis of Symptoms and Signs, 2003
Back pain:
History and physical examination
(Handbook of Signs & Symptoms (Third Edition))
If life-threatening causes of back pain are ruled out, continue with a complete history and physical examination. Be aware of the patient's expressions of pain as you do so. Obtain a medical history, including past injuries and illnesses, and a family history. Ask about diet and alcohol intake. Also, take a drug history, including past and present prescriptions and over-the-counter drugs.
Next, perform a thorough physical examination. Observe skin color, especially in the patient's legs, and palpate skin temperature. Palpate femoral, popliteal, posterior tibial, and pedal pulses. Ask about unusual sensations in the legs, such as numbness and tingling. Observe the patient's posture if pain doesn't prohibit standing. Does he stand erect or tend to lean toward one side? Observe the level of the shoulders and pelvis and the curvature of the back. Ask the patient to bend forward, backward, and from side to side while you palpate for paravertebral muscle spasms. Note rotation of the spine on the trunk. Palpate the dorsolumbar spine for point tenderness. Then ask the patient to walk — first on his heels, then on his toes; protect him from falling as he does so. Weakness may reflect a muscular disorder or spinal nerve root irritation. Place the patient in a sitting position to evaluate and compare patellar tendon (knee), Achilles tendon, and Babinski's reflexes. Evaluate the strength of the extensor hallucis longus by asking the patient to hold up his big toe against resistance. Measure leg length and hamstring and quadriceps muscles bilaterally. Note a difference of more than ⅜" (1 cm) in muscle size, especially in the calf.
To reproduce leg and back pain, position the patient in a supine position on the examining table. Grasp his heel and slowly lift his leg. If he feels pain, note its exact location and the angle between the table and his leg when it occurs. Repeat this maneuver with the opposite leg. Pain along the sciatic nerve may indicate disk herniation or sciatica. Also, note the range of motion of the hip and knee.
Palpate the flanks and percuss with the fingertips or perform fist percussion to elicit costovertebral angle tenderness.
» READ BOOK EXCERPT ONLINE »
Source: Handbook of Signs & Symptoms (Third Edition), 2006
Back pain:
History and physical examination
(Professional Guide to Signs & Symptoms (Fifth Edition))
If life-threatening causes of back pain are ruled out, continue with a complete history and physical examination. Be aware of the patient’s expressions of pain as you do so. Obtain a medical history, including past injuries and illnesses, and a family history. Ask about diet and alcohol intake. Also, take a drug history, including past and present prescription and over-the-counter drugs.
Next, perform a thorough physical examination. Observe skin color, especially in the patient’s legs, and palpate skin temperature. Palpate femoral, popliteal, posterior tibial, and pedal pulses. Ask about unusual sensations in the legs, such as numbness and tingling. Observe the patient’s posture if pain doesn’t prohibit standing. Does he stand erect or tend to lean toward one side? Observe the level of the shoulders and pelvis and the curvature of the back. Ask the patient to bend forward, backward, and from side to side while you palpate for paravertebral muscle spasms. Note rotation of the spine on the trunk. Palpate the dorsolumbar spine for point tenderness. Then ask the patient to walk—first on his heels, then on his toes; protect him from falling as he does so. Weakness may reflect a muscular disorder or spinal nerve root irritation. Place the patient in a sitting position to evaluate and compare patellar tendon (knee), Achilles tendon, and Babinski’s reflexes. Evaluate the strength of the extensor hallucis longus by asking the patient to hold up his big toe against resistance. Measure leg length and hamstring and quadriceps muscles bilaterally. Note a difference of more than ⅜” (1 cm) in muscle size, especially in the calf.
To reproduce leg and back pain, place the patient in a supine position on the examining table. Grasp his heel and slowly lift his leg. If he feels pain, note its exact location and the angle between the table and his leg when it occurs. Repeat this maneuver with the opposite leg. Pain along the sciatic nerve may indicate disk herniation or sciatica. Also, note the range of motion of the hip and knee.
Palpate the flanks and percuss with the fingertips or perform fist percussion to elicit costovertebral angle tenderness.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Signs & Symptoms (Fifth Edition), 2006
Low Back Pain:
Physical examination
(The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter)
Evaluation should be both general and specific. It is prudent to leave the potentially most painful parts of the examination to the end.
A. General. Examination includes auscultation of the heart and assessment of peripheral pulses and blood pressure. Abdominal examination should focus on possible causes of back pain (Table 12.5). Assess gait.
B. Neurologic. The lower extremity examination includes motor strength, deep tendon reflexes, sensation, proprioception, and certain functional maneuvers (Table 12.6). Romberg and Babinski reflexes should also be assessed. Rectal examination should assess sphincter tone, which can be compromised in sacral root dysfunction. In the primary care setting, most clinically significant disc herniations will be detected by the following limited examination: dorsiflexion of the great toe and ankle, Achilles reflex, light touch sensation of the medial (L 4), dorsal (L5), and lateral (S1) aspect of the foot, and the straight leg raise (SLR) test (1).
C. Musculoskeletal. Assess range of motion of the spine and lower extremities. Perform the SLR test passively with the patient supine. Note the angle of leg elevation precipitating pain. A positive test for sciatica is buttock pain radiating to the posterior thigh, and perhaps to the lower leg and foot. Sciatica, with pain and resistance on internal rotation of the hip, can indicate piriformis muscle spasm or strain. The SLR test is usually negative in spinal stenosis (2). Percussion of the spine and upper pelvis helps to identify areas of localized tenderness, as in fracture, metastatic disease, and some rheumatologic conditions. Palpate standard trigger points looking for fibromyalgia. Check for paraspinal muscle spasm. Measure thigh and calf circumferences to look for muscular atrophy.
Testing
A. Clinical laboratory tests. Testing will be guided by the differential diagnosis as determined by the history and physical examination. If the back pain is felt to be of musculoskeletal origin, no test may be indicated. A urinalysis can help rule out hematuria or infection, if the pain is thought to be urologic or as a result of trauma. If the history suggests a medical problem, the considered diagnoses will determine the laboratory work. Extensive medical workup may be needed for a primary or metastatic malignancy. A calcium level should always be measured to identify a potentially lethal hypercalcemia. Rheumatologic studies may be indicated if a connective tissue disease (e.g., ankylosing spondylitis or rheumatoid arthritis) is suspected. If the pain is thought to be secondary to an urgent or life-threatening condition, have pertinent tests done expeditiously.
B. Diagnostic imaging. In the absence of “red flags,” lumbar spine films are not indicated for musculoskeletal sounding low back pain of less than 1 month duration (1). Neurologic emergencies (e.g., major spine trauma, cauda equina syndrome) require magnetic resonance imaging (MRI) studies. It is usually unproductive to order an MRI for straightforward lumbar muscular strain or for initial evaluation of simple disc herniation, as the prevalence rate of nonsignificant abnormal findings is high. A bone scan may be helpful when tumor, infection, or occult fracture is suspected. Electromyography may be useful to assess for nerve root dysfunction when symptoms are questionable.
Diagnostic assessment
The most common cause of low back pain in the outpatient setting is musculoskeletal strain. Although temporarily very debilitating, muscle strain can be conservatively treated and usually has few long-term complications. Variations from this basic presentation must be recognized to identify more structurally significant or medically threatening problems. Clues to these other diagnoses, which are found in the history, are reinforced by abnormalities in the physical examination; they are found less often by diagnostic testing.
The following “red flags” suggest possible urgent diagnoses. A history of recent trauma or motor vehicle accident can signify a vertebral fracture or subluxation. Fever can indicate an infection of the spine or pyelonephritis (Chapter 2.6). Recent genitourinary instrumentation or other invasive procedure can precede this presentation. Weight loss, other constitutional symptoms, or pain at rest (or at night) may suggest cancer (Chapter 2.13). Neurologic abnormalities can signify nerve dysfunction or cord compression. Urinary or fecal incontinence or retention, saddle area perineal numbness, or anal sphincter incompetence suggests cauda equina syndrome. A sudden tearing sensation in the back with associated hypotension can be caused by a rupturing abdominal aortic aneurysm.
References
1. Bigos SJ. Acute low back problems in adults. Clinical Practice Guideline. No. 14. AHCPR Publication No. 95-0642. Rockville, MD: Agency for Health Care Policy and Research, Public Health Service, US Department of Health and Human Services; December 1994.
2. Alvarez JA, Hardy Jr. RH. Lumbar spine stenosis: a common cause of back and leg pain. Am Fam Physician 1998;57:1825–1834.
» READ BOOK EXCERPT ONLINE »
Source: The 10-Minute Diagnosis Manual: Symptoms and Signs in the Time-Limited Encounter, 2000
Low Back Pain:
Diagnostic Approach
(Field Guide to Bedside Diagnosis)
Radicular pain has such a high sensitivity for nerve root compression that its absence makes important disc herniation unlikely. Not all radicular pain is due to a herniated disc however. Other causes include spinal stenosis, ligamentous hypertrophy, deep lumbar muscle spasm, and deep trochanteric bursitis.
Back pain at rest or unassociated with posture/movement should increase the suspicion of tumor, fracture, infection, or referred visceral pain. Spinal tenderness is a sensitive but not specific indicator. Clues to metastatic cancer include a history of cancer, unexplained weight loss, and signs of cord compression, such as motor weakness of the legs, urinary or fecal incontinence, and absent anal reflex. Recent bacterial infection, injection drug use, or immune suppression (from steroids, chemotherapy, or HIV) should raise suspicion for infection. Fever occurs in osteomyelitis (50%), epidural abscess (83%), and tuberculosis (27%).
A red flag for fracture in a young adult is major trauma, such as a fall from a height or a motor vehicle accident. In older adults, minor trauma or strenuous lifting can cause a compression fracture.
» READ BOOK EXCERPT ONLINE »
Source: Field Guide to Bedside Diagnosis, 2007
Back pain:
Physical assessment
(Signs & Symptoms: A 2-in-1 Reference for Nurses)
Perform a thorough physical examination. Observe skin color, especially in the patient’s legs, and palpate skin temperature. Palpate femoral, popliteal, posterior tibial, and pedal pulses. Ask about unusual sensations in the legs, such as numbness and tingling. Observe the patient’s posture if pain doesn’t prohibit standing. Does he stand erect or tend to lean toward one side? Observe the level of the shoulders and pelvis and the curvature of the back. Ask the patient to bend forward, backward, and side to side while you palpate for paravertebral muscle spasms. Note rotation of the spine on the trunk. Palpate the dorsolumbar spine for point tenderness. Then ask the patient to walk — first on his heels, then on his toes; protect him from falling as he does so. Weakness may reflect a muscular disorder or spinal nerve root irritation. Place the patient in a sitting position to evaluate and compare patellar tendon (knee), Achilles tendon, and Babinski’s reflexes. Evaluate the strength of the extensor hallucis longus by asking the patient to hold up his big toe against resistance. Measure leg length and hamstring and quadriceps muscles bilaterally. Note a difference of more than ⅜" (1 cm) in muscle size, especially in the calf.
To reproduce leg and back pain, position the patient in a supine position on the examination table. Grasp his heel and slowly lift his leg. If he feels pain, note its exact location and the angle between the table and his leg when it occurs. Repeat this maneuver with the opposite leg. Pain along the sciatic nerve may indicate disk herniation or sciatica. Also, note the range of motion of the hip and knee.
Palpate the flanks and percuss with the fingertips or perform fist percussion to elicit costovertebral angle tenderness.
» READ BOOK EXCERPT ONLINE »
Source: Signs & Symptoms: A 2-in-1 Reference for Nurses, 2007
Back Pain:
Diagnostic Approach
(The Diagnostic Approach to Symptoms and Signs in Pediatrics)
History,physical exam, and spine radiographs are usually diagnostic of congenital spineanomalies, fractures, Scheuermann disease, spondylolysis, and spondylolisthesis.MRI is procedure of choice to confirmdiagnosis of herniated disc.Fever usually occurs with inflammatorydisorder or infection affecting spine. When fever accompanies backpain, CBC and erythrocyte sedimentation rate should be performed.Nuclear scintigraphy is useful, especiallywith suspected osteomyelitis, discitis, or sacroiliac joint infection.Aspirate or biopsy of lesion shouldbe strongly considered with suspected osteomyelitis. Blood culturemay reveal organism, but yield is often low.Spine radiographs are useful in diagnosisof vertebral spine and intraspinal masses.CT and MRI are valuable in diagnosingtumors as well as spinal epidural abscess.For all tumors except possibly osteoidosteoma, histologic exam is necessary for diagnosis.
» READ BOOK EXCERPT ONLINE »
Source: The Diagnostic Approach to Symptoms and Signs in Pediatrics, 2006
Back pain:
History and physical examination
(Nursing: Interpreting Signs and Symptoms)
If life-threatening causes of back pain are ruled out, continue with a complete history and physical examination. Be aware of the patient's expressions of pain as you do so. Obtain a medical history, including past injuries, surgeries, and illnesses, and a family history. Ask about diet and alcohol intake. Take a drug history, including past and present prescriptions, over-the-counter drugs, and herbal medicines. Ask the patient to rate the pain according to a pain scale and describe the type and location of his pain.
Next, perform a thorough physical examination. Observe skin color, especially in the patient's legs, and palpate skin temperature. Palpate femoral, popliteal, posterior tibial, and pedal pulses. Ask about unusual sensations in the legs, such as numbness and tingling. Observe the patient's posture if pain doesn't prohibit standing. Does he stand erect or tend to lean toward one side? Observe the level of the shoulders and pelvis and the curvature of the back. Ask the patient to bend forward, backward, and from side to side while you palpate for paravertebral muscle spasms. Note rotation of the spine on the trunk. Palpate the dorsolumbar spine for point tenderness. Then ask the patient to walk—first on his heels, then on his toes; protect him from falling as he does so. Weakness may reflect a muscular disorder or spinal nerve root irritation. Place the patient in a sitting position to evaluate and compare patellar tendon (knee), Achilles tendon, and Babinski's reflexes. Evaluate the strength of the extensor hallucis longus by asking the patient to hold up his big toe against resistance. Measure leg length and hamstring and quadriceps muscles bilaterally. Note a difference of more than 3⁄89 (1 cm) in muscle size, especially in the calf.
To reproduce leg and back pain, position the patient in a supine position on the examining table. Grasp his heel and slowly lift his leg. If he feels pain, note its exact location and the angle between the table and his leg when it occurs. Repeat this maneuver with the opposite leg. Pain along the sciatic nerve may indicate disk herniation or sciatica. Note the range of motion of the hip and knee.
Palpate the flanks and percuss with the fingertips or perform fist percussion to elicit costovertebral angle tenderness.
» READ BOOK EXCERPT ONLINE »
Source: Nursing: Interpreting Signs and Symptoms, 2007
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