Zusammenfassung
Wir berichten über einen 70-jährigen Patienten mit spontan einsetzendem Schmerz des
linken Fußrückens sowie im weiteren Verlauf einsetzender Fußheberparese links. Nachdem
zunächst eine idiopathische Peronaeusparese angenommen wurde, zeigte ein MRT eine
zystische Raumforderung im Bereich des linken Fibulaköpfchens. Dieser Befund führte
zur Vorstellung des Patienten in unserer Klinik zur chirurgischen Therapie. Intraoperativ
stellte sich ein intraneurales Ganglion des N. peronaeus profundus und communis dar.
Es bestand keine Verbindung zum proximalen Tibiofibulargelenk. Das Ganglion wurde
reseziert. Zwei Monate postoperativ beschrieb der Patient rückläufige Schmerzen bei
noch bestehender Fußheberparese. Ein intraneurales Ganglion des N. peronaeus geht
vom proximalen Tibiofibulargelenk aus. Über den Eintrittspunkt des Ramus articularis
des N. peronaeus profundus breitet es sich nach proximal über den Ramus articularis,
den N. peronaeus profundus, über den N. peronaeus communis bis hin zum N. ischiadicus
aus. Die Symptome sind abhängig vom entsprechenden Stadium der Ausbreitung. Als Therapie
wird die Ligatur des Ramus articularis bzw. die Synovektomie oder Resektion des proximalen
Tibiofibulargelenks mit Dekompression des Ganglions empfohlen.
Abstract
This is a report of a 70-year-old patient with spontaneous pain of the dorsum area
of the left foot. A few days later there was a sudden onset of foot drop. First, an
idiopathic peroneal palsy was assessed but an MRI showed a cystic tumour near the
fibular head. These findings resulted in the patient attending our clinic for surgical
treatment. During the operation we found an intraneural ganglion of the deep peroneal
nerve and the common peroneal nerve. There was no connection with the superior tibiofibular
joint. The ganglion was therefore removed. Two months after the operation the patient
reported an improvement of the pain but no improvement of movement of the foot. An
intraneural ganglion of the peroneal nerve derives from the superior tibiofibular
joint. Given access to the articular branch, the cyst typically spreads out proximally
from the deep peroneal nerve to the common peronael nerve and to the point of the
sciatic nerve. The clinical symptoms are correlated with the extent of cyst propagation.
Recommended therapy would include the ligation of the aricular branch, or synovectomy,
or resection of the superior tibiofibular joint and decompression of the cyst.
Schlüsselwörter
intraneurales Ganglion - N. peronaeus - chirurgische Therapie - Pathomechanismus -
Diagnostik
Key words
Intraneural ganglion - peroneal nerve - surgical therapy - pathomechanism - diagnostics
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Dr. Jens Bischoff
Klinik für Orthopädie, Unfall- und Handchirurgie
Klinikum Osnabrück
Am Finkenhügel 1
49076 Osnabrück
Telefon: 05 41/4 05 62 01
Fax: 05 41/4 05 62 99
eMail: bischoff.jens@gmx.de