An Individualized Intra-Articular Stabilization Device Designed Based on 3D Printing Technology for Traumatic Instability of the Ulnohumeral Joint

Figure 1

(a) X-ray on admission of a 28-year-old man showing a dislocated left elbow joint. (b-1) Extension function of the elbow. (b-2) Flexion function of the elbow. (c) Individualized design of the intra-articular stabilization device based on the 3D model of the elbow joint injury and repair. (d) Placement of the intra-articular stabilization device. (e-1) X-ray films immediately after placement. (e-2) Active flexion and extension five days after surgery. (f-1) X-ray films two months after placement show that the elbow joint alignment is normal, and the device has not become loose, fallen off, or broken. (f-2) Elbow extension, elbow flexion, forearm supination, and forearm supination functions two months after placement.

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