Malunion of an intra-articular fracture of the metacarpophalangeal joint can cause a dramatic effect, decreasing mobility and strength. For small joints, surgical options are often drastic; joint arthroplasty or arthrodesis. However, in cases of preserved joint space, an intra-articular osteotomy can be proposed. In order to improve preoperative planning, considering the small size of the articular surface and the importance of a precise osteotomy plane, we used a preoperative three-dimensional printed template to perform the intra-articular opening wedge osteotomy. This was followed by plate and screw osteosynthesis after adding a freeze-dried allograft to the created defect. The outcome at 1-year follow-up was more than satisfactory, with a normal range of motion and a restored, painless grip strength. A three-dimensional printed template is a useful, accurate, and efficient method to correct malunion of intra-articular fractures of the base of the proximal phalanx at the metacarpophalangeal joint.
Case Rep Orthop Res 2022;5:7–12

中文翻译：

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使用三维打印模板的关节内近节指骨截骨术：病例报告

掌指关节关节内骨折的畸形愈合可引起显着影响，降低活动性和强度。对于小关节，手术选择通常很激烈；关节置换术或关节融合术。然而，在保留关节空间的情况下，可以建议进行关节内截骨术。为了改进术前计划，考虑到关节面小尺寸和精确截骨平面的重要性，我们使用术前三维打印模板进行关节内开口楔形截骨术。在将冷冻干燥的同种异体移植物添加到产生的缺损后，进行板和螺钉接骨术。1 年随访的结果非常令人满意，运动范围正常，握力恢复，无痛。.
案例代表 Orthop Res 2022；5:7–12