Background

The surgical treatment for osteoid osteoma (OO) in the foot and ankle is challenging. It is difficult to locate the lesion and the anatomy is crowded by sensitive structures. The purpose of this study was to describe the outcomes of navigated mini open-intralesional curettage (NMIC) or navigated minimally invasive radiofrequency ablation (NMRFA) in treating these lesions.

Methods

All patients who underwent surgery for OO in the foot and ankle between 2015 and 2020 were included. O-arm navigation was used in All procedures. The choice of NMIC versus NMRFA was made by the surgeon according to the location of the lesion and its proximity to sensitive anatomic structures.

Results

Fourteen patients were included. Ten were operated by NMRFA and 4 by NMIC. All patients’ symptoms related to OO resolved following a single procedure. Average AOFAS score increased by 18.7 (P < .001). Three patients had the following complications: pathologic fracture, superficial infection and transient deep peroneal nerve sensory loss.

Conclusion

Navigated surgical treatment of OO in the foot and ankle is accurate, efficient and safe.

中文翻译：

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术中三维导航治疗足踝部骨样骨瘤——系列14例

背景

足部和踝部骨样骨瘤 (OO) 的手术治疗具有挑战性。很难定位病变，并且解剖结构被敏感结构所拥挤。本研究的目的是描述导航微型开放性病灶内刮除术 (NMIC) 或导航微创射频消融术 (NMRFA) 在治疗这些病变中的结果。

方法

纳入了 2015 年至 2020 年期间因足部和踝部 OO 接受手术的所有患者。所有程序均使用 O 形臂导航。NMIC 与 NMRFA 的选择由外科医生根据病变的位置及其与敏感解剖结构的接近程度做出。

结果

包括 14 名患者。10 个由 NMRFA 运营，4 个由 NMIC 运营。所有患者的 OO 相关症状都在一次手术后得到解决。平均 AOFAS 得分增加了 18.7 (P < .001)。三名患者出现以下并发症：病理性骨折、浅表感染和短暂的腓深神经感觉丧失。

结论

足踝部 OO 的导航手术治疗准确、高效、安全。