PMC9977198_01
(a) Coronal, (b) sagittal, and (c) axial T2-weighted MRI images of the ganglion cyst
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FIG1
Its size was approximately 36*35*120 mm (Figure 1).
(a) Blue arrow shows the proximal part of peroneal nerve compressed by the peroneal muscles, blue star shows the intramuscular septation; (b) White arrow points intact peroneal nerve after removal of disrupted muscle; (c) Disrupted peroneus longus muscle
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FIG2
The mass containing the surface of the peroneus longus muscle was excised from a total of 15 cm, while preserving the peroneal nerve and its branches (Figure 2).
(a) and (b) Preoperative coronal MRI section showing cyst recurrence. Red arrows indicates the PTFJ connection; (c) Axial MRI section of ganglion cyst recurrence. PTFJ: proximal tibiofibular joint
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FIG3
PTFJ arthrodesis was planned when the MRI revealed the ganglion cyst originating from the PTFJ (Figure 3).
(a) Preparation of proximal tibiofibular joint. Resection of articular surface; (b) Fibular osteotomy; (c) and (d) Weightbearing anterioposterior and lateral plain radiographs on the second-year follow-up
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FIG4
Tibiofibular arthrodesis was achieved with a 3.5 mm cannulated screw (Figure 4).
Second-year follow-up. Full range of motion on the physical examination
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FIG5
On her second-year control examination, no recurrence, and no motor and sensorial loss was noted (Figure 5).