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Titolo:
CHANGES OF SONOGRAPHIC, MAGNETIC-RESONANCE TOMOGRAPHIC, ELECTROMYOGRAPHIC, AND HISTOPATHOLOGIC FINDINGS WITHIN A 2-MONTH PERIOD OF EXAMINATIONS AFTER EXPERIMENTAL MUSCLE DENERVATION
Autore:
KULLMER K; SIEVERS KW; REIMERS CD; ROMPE JD; MULLERFELBER W; NAGELE M; HARLAND U;
Indirizzi:
UNIV MAINZ,ORTHOPAD KLIN,LANGENBECKSTR 1 D-55101 MAINZ GERMANY UNIV ESSEN GESAMTHSCH,RONTGENDIAGNOST ZENT INST ESSEN GERMANY UNIV GOTTINGEN,ABT KLIN NEUROPHYSIOL D-3400 GOTTINGEN GERMANY UNIV MUNICH,FRIEDRICH BAUR INST,MED & NEUROL KLIN MUNICH GERMANY UNIV MUNICH,RADIOL KLIN & POLIKLIN MUNICH GERMANY UNIV GIESSEN,ORTHOPAD KLIN GIESSEN GERMANY
Titolo Testata:
Archives of orthopaedic and trauma surgery
fascicolo: 4-5, volume: 117, anno: 1998,
pagine: 228 - 234
SICI:
0936-8051(1998)117:4-5<228:COSMTE>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
SKELETAL-MUSCLE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
K. Kullmer et al., "CHANGES OF SONOGRAPHIC, MAGNETIC-RESONANCE TOMOGRAPHIC, ELECTROMYOGRAPHIC, AND HISTOPATHOLOGIC FINDINGS WITHIN A 2-MONTH PERIOD OF EXAMINATIONS AFTER EXPERIMENTAL MUSCLE DENERVATION", Archives of orthopaedic and trauma surgery, 117(4-5), 1998, pp. 228-234

Abstract

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 sonographicalappearance of the supraspinatus muscle was followed and documented atshort 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 increase of echointensity and inhomogenicity of echotexture that appeared on day 14 after injury, and progressed continuously with time. MRI revealed a remarkable increase in signal intensity 3 weeks after denervationand reproducible T2 times. Pathological spontaneous activity on EMG could also be detected from day 14 after injury Conventional histopathological staining methods (H&E, NADH, ATPase, basic and acid phosphatase) confirmed denervation and absence of reinnervation. The first nonspecific histopathological changes were seen 11 days after denervation in the form of moderately atrophic fibers, Typical histopathological signs of denervation appeared 3 weeks after nerve dissection. In summary, EMC, ultrasound, MRI, and histopathology each showed first abnormalities after about 2 weeks. In addition to EMG, sonography and MRI can document the course of muscle atrophy and mesenchymal abnormalities in neurogenic muscle lesions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 04:40:12