自膨胀水凝胶植入治疗上眶区凹陷的长期效果

Long-term effects of injectable hydrogel pellet for superior sulcus deformity

目的观察柱状自膨胀水凝胶治疗上眶区凹陷的长期效果。方法7例上眶区凹陷患者植入柱状自膨胀水凝胶进行容积扩张。术前术后进行拍照及眼球突出度测量来评估容积扩张的效果。结果术后早期上眶区凹陷及眼窝凹陷的改善状况都很好，但是随着时间的延长，上眶区凹陷又变得很明显。结论柱状自膨胀水凝胶在无眼球眼眶中的最终膨胀体积受多种因素的影响。如脂肪组织的萎缩，手术所带来的手术区域的炎症，以及羟基磷灰石的存在吸取本就不是很多的液体导致周围液体的进一步减少。

Objective To observe the long-term efficacy of injectable hydrogel pellets in treating superior sulcus deformity. Methods Seven cases with superior sulcus deformity received orbital volume augmentation by injectable hydrogel pellets. Preoperative and postoperative photographs and Hertel measure- ments were examined for the efficacy of volume replacement. Results The overall cosmetic results in supe- rior sulcus deformity and enophthalmos were good in the early stage postoperatively. However, the superior sulcus deformity became obvious with time. Conclusion The final volume of hydrogel pellets in the enoph- thalmos socket is affected by many factors. The atrophy of orbital fat tissues and inflammation at the opera- tion area are associated with surgery. The further decreased fluid from the surrounding already fluid-deprived region due to the ＂stealing＂ action of the hydroxyapatite sphere in the orbit was another factor.