在全踝关节置换失败后，使用小梁金属植入物进行踝关节融合。
Use of a trabecular metal implant in ankle arthrodesis after failed total ankle replacement.
机构信息
Department of Orthopedic Surgery, Falu Central Hospital, Sweden.
出版信息
Acta Orthop. 2010 Dec;81(6):745-7. doi: 10.3109/17453674.2010.533936. Epub 2010 Nov 11.
BACKGROUND AND PURPOSE
Arthrodesis after failed total ankle replacement is complicated and delayed union, nonunion, and shortening of the leg often occur-especially with large bone defects. We investigated the use of a trabecular metal implant and a retrograde intramedullary nail to obtain fusion.
PATIENTS AND METHODS
13 patients with a migrated or loose total ankle implant underwent arthrodesis with the use of a retrograde intramedullary nail through a trabecular metal Tibial Cone. The mean follow-up time was 1.4 (0.6-3.4) years.
RESULTS
At the last examination, 7 patients were pain-free, while 5 had some residual pain but were satisfied with the procedure. 1 patient was dissatisfied and experienced pain and swelling when walking. The implant-bone interfaces showed no radiographic zones or gaps in any patient, indicating union.
INTERPRETATION
The method is a new way of simplifying and overcoming some of the problems of performing arthrodesis after failed total ankle replacement.
背景与目的
全踝关节置换术后融合术较为复杂，常出现延迟愈合、不愈合和肢体缩短，尤其是存在大的骨缺损时。我们研究了使用多孔金属植入物和逆行髓内钉来实现融合。
患者与方法
13 例全踝关节置换术后出现假体迁移或松动的患者，采用逆行髓内钉穿过多孔金属胫骨锥进行融合术。平均随访时间为 1.4（0.6-3.4）年。
结果
末次随访时，7 例患者无痛，5 例仍有一些残留疼痛，但对手术满意。1 例患者不满意，行走时出现疼痛和肿胀。所有患者的植骨界面均未见影像学区域或间隙，提示融合。
结论
该方法为简化和克服全踝关节置换术后融合术一些问题提供了一种新方法。
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