晚期手术时机，一般在伤后1年为宜。
将发病2周以内手术者定为早期手术，2周以后手术者为晚期手术。
Early operation was performed in 2 weeks from onset, and late operation after 2 weeks.
结果：将发病2周以内手术者定为早期手术，2周以后手术者为晚期手术。
Results: the early operation was defined that the surgery was performed in 2 weeks since onset, and the late operation was defined after 2 weeks.
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