Background: The best imaging technique for post-operative knee assessment is magnetic resonance imaging (MRI). The challenge of using MRI to diagnose problems in the knee is made more challenging by surgical alterations. Therefore, reliable MRI assessment depends on the ability to distinguish between the normal post-operative MRI image of the knee elements and their anomalies. The purpose of this research was to compare the clinical result with the use of MRI to identify predicted morphological changes in the knee menisci during the first two years after arthroscopic operation.
Methods: This cross-sectional study was carried out on 30 patients with previously undergone meniscal repaired or meniscectomy and reported having ongoing or frequent knee discomfort. All patients had extensive clinical examinations and detailed history collection, radiographical imaging and MRI.
Results: MRI examination of the knee post operatively showed that the time needed for beginning of meniscus healing after surgery ranged from 3-6months. 27 patients (90%) had a meniscus tear in the posterior 1/3. Degenerative tears 11 (36.4%) was the most prevalent meniscal tears pattern diagnosed by MRI. No effusion occurred in 25 (83.3%) patients. Thirty cases were treated; seventeen received arthroscopic repair, and thirteen underwent resection. 11 patients (36.6%) had symptoms ranging from joint swelling or pain, restricted motion, instability/giving away, and catching/locking, whereas 19 (63.4%) were asymptomatic.
Conclusions: Within the first two years after arthroscopic operations, MRI plays a useful role in detecting anticipated morphological alterations of the knee menisci.
Background:
The term cervicogenic vertigo is reserved for cases where the suspected mechanism is proprioceptive. For a diagnosis of cervicogenic vertigo, it is essential to exclude other causes of vertigo. Generally, the patient has no hearing complaints and characteristically the symptoms are elicited by neck massage or neck vibration. The ocular vestibular evoked myogenic potential (o-VEMP) is a test for utricular function that has been introduced and validated.
Objectives:
To assesses o-VEMPs in patients with cervicogenic vertigo using 500 Hz tone bust stimuli at 95 dB nHL. Consequently, correlate the relation between o-VEMPs test results and radiological imaging, in the form of MRI cervical spine and CT angiography of the vertebral artery.
Subjects:
Fifty two subjects participated in the study; the group comprised 32 patients with diagnosed cervicogenic vertigo and also included 20 healthy matched adults.
Methods:
A random sample of consenting case and control subjects were obtained. MRI cervical spine with CT angiography of vertebral artery was done with o-VEMPs recordings.
Results:
Abnormal MRI cervical spines were found in all study group participants. The results for the CT angiography were variable with abnormal o-VEMPs latencies.
Conclusion:
A link co-exists between utricle and superior vestibular nerve in patients with cervicogenic vertigo. This may play a role in the pathogenesis of vertigo in these affected patients.
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