PubMed Health⌕ Search

Biomedical subjects

J A Simonka

Publications and source records attributed to J A Simonka.

15 recordsLinked to original sources
PubMed1992

[Diagnosis and management of hand injuries caused by foreign bodies].

The authors survey the possibilities of diagnosis of the frequent injuries of the hand caused by foreign bodies. It is proven by them that almost all foreign bodies can be demonstrated using radiological methods (native picture, ultrasound examination, xeroradiography, CT, MRI). They support the immediate surgical care in the therapy of injuries caused by foreign body, they deal however with the problems of the later therapy, too. Their opinion is backed up by the demonstration of case reports.

Accidents, Home↗
PubMed1991

[Primary covering of tissue defects using arteria dorsalis pedis flaps].

Authors describe the operative treatment of a tangential tissue defect with severe crush in the region of the external malleolus. Because of the injury with bone defect and opening of the joint an arthrodesis on the talocrural joint was performed. The opened joints and the free bone surface were covered with primary a. dorsalis pedis island flap plasty. Healing without complication was reached.

Accidents, Traffic↗
PubMed1991

[Management of a foot deformity, caused by paralysis of the peroneal nerve, by transfer of the tendon of the posterior tibial muscle].

Author describes two cases: in the first, in consequence of a lesion of the deep peroneal nerve during operation, the development a paralytic drop foot, in the second, in consequence of a lesion of unknown etiology of the common peroneal nerve, paralytic club foot could be observed. In both cases the intraosseal transposition of the tendon of the posterior tibial muscle on the second cuneiform bone was performed with good result.

Adolescent↗
PubMed1990

[Diagnosis and therapy of injuries of the lamina fibrocartilaginea of the hand (palmar plate)].

Authors studied a frequent injury of the finger joints. The anatomy, the mechanism of the injuries, the diagnostic possibilities of the lamina fibrocartilaginea ("palmar plate") and of the palmar ligaments of the joints are described. In the diagnosis a special significance is attached to the stressed and tangential X-ray pictures. They take the part of the conservative treatment of the injury. In cases of dislocations, that cannot be reduced, of open "palmar plate" injuries and of major hyperextension and dislocations of the broken bone scale, operative treatment is thought necessary. In the treatment of the injuries of the "palmar plate" of the PIP joint they use the so called rein method, that keeps the palmar cartilaginous joint capsule, torn at the injury, on its original place, it enables however the active joint movements, the gymnastics and hinders this way the development of the joint contracture.

Adolescent↗
PubMed1989

Transport of muscarinic cholinergic marker protein activities in regenerating sciatic nerve of rat.

The transport characteristics of choline acetyltransferase (ChAT; EC 2.3.1.6), acetylcholinesterase (AChE; EC 3.1.1.7), and the muscarinic acetylcholine receptors (mAChR) were studied in perineurally sutured, regenerating rat sciatic nerve. At different times after repair, the sciatic nerve was ligated for 24 h, and the activities of the cholinergic marker proteins, as well as the binding capacity, were measured proximally and distally from the ligature. The number of bidirectionally transported receptors increased linearly up to 5 months postoperatively (6.1-33.6% and 5.6-25.6% of the control level proximal and distal to the ligature, respectively). The quantity of anterogradely transported ChAT reached a plateau 3 months postoperatively (74.9% of the control level), whereas the retrogradely transported enzyme was then only 34.7% of the control value. The activity of AChE increased linearly during nerve regeneration, and exceeded the control level after 4 months (121.0% and 63.7% proximally and distally, respectively). The data indicate that the altered bidirectional transport of cholinergic marker proteins may be monitored quantitatively during nerve regeneration. This method might be suitable for studies of the nerve regeneration process.

Acetylcholinesterase↗