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If the pathological condition of osteo-arthritis gets worse, it’s needed for compensating for a lost body-function to replace the damaged part with an artificial joint.
But, in general, its durable term is about 10 〜 20 years. Accordingly, an implant having longer lifespan has been requested.
In general, an artificial joint at present has a standardized shape on average skeletal shapes, so inevitably, an in-compatible case with a skeletal shape can happen.
It’s valid for avoiding such an undesirable case as much as possible to customize a shape.
These detailed procedures are explained in an other section.
