0000000000009970
AUTHOR
K. Küllmer
Sonography and MRI of experimental muscle injuries
After sonographical examination with a 7.5-MHz linear array scanner, we created an experimental muscle injury of known sitze and location on 28 New Zealand white rabbits by stabbing them with a scalpel in the supraspinatus muscle. The changes in the healing process were followed and documented by sonography and magnetic resonance imaging (MRI) before and 2, 5, 11, 14, 36 and 64 days after injury. The changes in sonography and MRI followed a regular course. Ultrasound revealed an echo-poor area after injury with ever increasing echogenicity from the 14th day. Strong reflexes were found after 2 months. MRI showed few changes, only a slight increase of signal intensity, but a characteristic cu…
Die Sonographie der Lendenwirbelsäule und des lumbosakralen Überganges - Sonoanatomie und Möglichkeiten der sonographisch gesteuerten Facettengelenksinfiltration
QUESTION Is sonography helpful in facet joint infiltration of the lumbar spine? METHOD The sonoanatomy of the lumbar spine and the of lumbosacral junction was examined and described in a skeleton and in 10 volunteers. One representative cross section and 3 longitudinal sections were defined. According to these results (no neurological symptoms) the possibilities of ultrasound guided infiltration of the facet joints was examined in 78 patients (36 female, 42 male, average age 55 y., 38-78 y.) with chronic low back pain and increase of pain by hyperextension. 5 ml Carbostesin partially in combination with steroids were applied to each joint. In all cases the tip of the syringe could be placed…
Sonographische Verlaufskontrolle von experimentellen Muskelverletzungen
Experimental muscle lesions were produced in 28 rabbits by stab incision, thus creating a lesion of known extent and site. The changes in the course of healing were followed up and documented at short intervals for a period of two months via sonography. The changes take place in regular course and can be explained by fine tissue changes, taking into consideration the fundamentals of theoretical ultrasound physics. Sonography renders both valuable assistance in diagnosing muscular lesions and in following up the healing process--the latter, however, with some reservations due to the clinical terminology defining the extent of muscular lesions.
ANALGESIC EFFECT OF EXTRACORPOREAL SHOCK-WAVE THERAPY ON CHRONIC TENNIS ELBOW
We report a controlled, prospective study to investigate the effect of treatment by low-energy extracorporeal shock waves on pain in tennis elbow. We assigned at random 100 patients who had had symptoms for more than 12 months to two groups to receive low-energy shock-wave therapy. Group I received a total of 3000 impulses of 0.08 mJ/mm2 and group II, the control group, 30 impulses. The patients were reviewed after 3, 6 and 24 weeks. There was significant alleviation of pain and improvement of function after treatment in group I in which there was a good or excellent outcome in 48% and an acceptable result in 42% at the final review, compared with 6% and 24%, respectively, in group II.
Changes of sonographic, magnetic resonance tomographic, electromyographic, and histopathologic findings within a 2-month period of examinations after experimental muscle denervation
This study compares sonographical, histopathological, magnetic resonance imaging (MRI), and electromyographical (EMG) findings following acute muscle denervation. We performed an experimental denervation of the supraspinatus and infraspinatus muscles on 35 New Zealand white rabbits by segment resection of the suprascapular nerve. The sonographical appearance of the supraspinatus muscle was followed and documented at short time intervals within a 2-month follow-up period. The sonographical, histopathological, and MRI changes due to denervation suggest a regular pattern. Apart from the reduction of the muscle diameter, there were considerable sonographical signs of denervation with an increas…
Die Sonoanatomie des Spinalkanales der LWS
UNLABELLED Results of an Experimental Study and Report of Intraoperative Application: AIM Intraoperative sonography has been used in neurosurgery (especially in tumors) and in traumatology (assess reduction of dorsal vertebral body fragments). This study was performed to determine the value of sonography in detecting vertebral disc tissue. RESULTS We examined 6 specimens of the Lumbar spine using the extended flavectomy approach. We found that sono-anatomy was reproducible and that the assessable area was large enough to make sonography useful for detection of sequesters. Dislocated vertebral disc tissue could be differentiated clearly from original disc tissue and from other intraspinal st…
Intraoperative Sonographie bei lumbalen Bandscheibenvorfällen
UNLABELLED Intraoperative ultrasound of the spine has been used in neurosurgery (tumours) and traumatology (reposition of fractured vertebral bodies fragments). AIM To describe initial experiences with this method and to document the opportunities and problems. METHOD 24 nucleotomies were documented and evaluated. Sonography was performed using a 7.5 MHz sector probe and a typical surgical approach. RESULTS In 21 of 24 cases, imaging of intraspinal structures was possible. The complete extraction of the herniated disk could be documented. In 3 cases the examination failed because the probe was too large to be pushed down between the spinous processes and the wound retractor to the operative…
Sonographische Verlaufskontrolle nach experimenteller Muskeldenervierung
AIM: To describe sonographical results following acute, experimental muscle denervation. METHOD: Denervation of the supraspinatus and infraspinatus muscles was performed in 28 New Zealand white rabbits by segmental resection of the suprascapular nerve. The changes in the sonographic image of the muscles were follow up and documented at short intervals over 2 months. RESULTS: The sonographically detectable changes following denervation follow a definite pattern. In addition to the reduction in muscle diameter, sonographical signs of denervation include an increase of echodensity and an inhomogeneity of echotexture that appeared on day 14 after injury and became more prominent at larger inter…
A sonographical follow-up of experimental injuries on rabbit achilles tendons
An 28 Neuseelandkaninchen wurde eine experimentelle partielle Durchtrennung der Achillessehne durchgefuhrt. Die Veranderungen im Verlauf der Heilung wurden nach einem festen Untersuchungsschema in kurzen Intervallen uber zwei Monate sonographisch dokumentiert. Die sonographisch feststellbaren Veranderungen unterliegen regelhaften Ablaufen. Die Veranderungen des Ultraschallbildes sind unter Berucksichtigung theoretischer Ultraschallphysik durch die feingeweblichen Veranderungen erklarbar. Hamatomentwicklung und fibrose Vernarbung konnen sonographisch verfolgt werden. Die Sonographie ist sowohl eine wertvolle Methode in der Diagnostik der partiellen und totalen Sehnenruptur als auch unter Vor…
Effectiveness of low-energy extracorporal shock waves for chronic plantar fasciitis
Summary Over a period of 4 years we performed a prospective randomized trial on 100 patients in order to compare the effects of low-energy extracorporal shock-wave therapy (ESWT) in the treatment of painful heel (chronic plantar fasciitis). Patients in group I were treated three times at weekly intervals with 1000 impulses of 0.08 mJ/mm 2 given around the heel spur. Group II received treatment three times with 10 impulses of the same energy density at weekly intervals. Follow-up examinations were done at 12 and 52 weeks, respectively. The main outcomes assessed were reduction in severity of pressure pain, period of pain-free walking, and patient satisfaction. At 12 weeks, 16 of 50 patients …