case_images: PMC10858398_01
case_images: Preoperative Imaging. Figure 1A shows preoperative x-ray showing radiolucent regions in the subchondral area of the medial talar dome and body of the talus, with no joint line disruption. Figure 2B (sagittal) and 2C (coronal) CT scan cuts showing radiolucent multiloculated cyst in the medial talar dome and body, without any signs of bone collapse or expansion.
case_images: cureus-0016-00000052078-i01.jpg
case_images: PMC10858398_01_cureus-0016-00000052078-i01.jpg
case_images: FIG1
case_images: Further evaluation through computed tomography revealed a radiolucent multiloculated cyst in the medial talar dome and body, without any signs of bone collapse or expansion (Figure 1).
case_images: Sequential Surgical Steps. Figure 2A shows incision from the medial malleolus to the talonavicular joint to approach medial talar neck. Figure 2B shows a final exposure of talar neck. Figure 2C shows identification of medial talar neck. Figure 2D shows confirmation of talar neck under fluoroscopy.
case_images: cureus-0016-00000052078-i02.jpg
case_images: PMC10858398_01_cureus-0016-00000052078-i02.jpg
case_images: FIG2
case_images: The skin and fascia were cut to expose the underlying medial talar neck, and fluoroscopy was used to confirm its location (Figure 2).
case_images: Sequential Surgical Steps. Figure 3A shows a carefully made window in the medial talar neck. Figure 3B shows an angled curette for the thorough removal of the cyst. Figure 3C shows the allograft used. Figure 3D shows the complete packing of the cyst with bone graft. Figure 3E shows postoperative fluoroscopic image showing the cyst completely filled with bone graft.
case_images: cureus-0016-00000052078-i03.jpg
case_images: PMC10858398_01_cureus-0016-00000052078-i03.jpg
case_images: FIG3
case_images: The cyst was meticulously removed using curettage, with the final stage involving precise placement of an angled curette to ensure thorough removal of the cyst, and the resulting cavity was filled with allograft (Figure 3).
case_images: Sequential Radiographs. Serial yearly follow-up x-rays showing good integration of bone graft with some signs of degenerative changes and no recurrence. Figure 4A - 2017, Figure 4B - 2018, Figure 4C - 2019, Figure 4D - 2021, Figure 4E - 2022.
case_images: cureus-0016-00000052078-i04.jpg
case_images: PMC10858398_01_cureus-0016-00000052078-i04.jpg
case_images: FIG4
case_images: Radiographs revealed satisfactory integration of the bone graft, with some signs of degenerative changes in the tibiotalar joints (Figure 4), but the patient remained asymptomatic.