共识过程。

为2019年脊髓损伤神经学分类国际标准（ISNCSCI）中的部分保留区（ZPP）提供参考，并分析修订后的ZPP适用性的初步影响。修订内容包括在选定的不完全损伤中使用 ZPP（除了之前在感觉运动完全损伤中的使用）。具体来说，修订后的运动 ZPP 适用于双侧缺乏自主肛门收缩 (VAC) 的损伤，如果 S4-5 中不存在深肛门压力 (DAP)、轻触和针刺感觉，则适用于给定一侧的修订后感觉 ZPP在那一边。

委员会由 16 位 ISNCSCI 专家组成，数据集来自欧洲脊髓损伤多中心研究 (EMSCI)。

适用 ZPP 的发生频率是在 EMSCI 队列中确定的，该队列由 665 名创伤性 SCI 患者的两次 ISNCSCI 检查组成。

在所有不完全损伤数据集中，运动 ZPP 的出现率为 35.2%，而感觉 ZPP 的出现频率要低得多 (1.0%)。运动 ZPP 适用于所有美国脊柱损伤协会损伤量表 (AIS) B 数据集（平均 ZPP 长度：0.9 ± 1.0 段）、所有 AIS C 数据集的 55.4%（ZPP 长度：11.8 ± 8.2 段）和 9.9% AIS D 数据集（ZPP 长度：15.4 ± 7.9 段）。

修订后的 ZPP 允许确定大约 1/3 的不完全损伤中的运动 ZPP。扩大的适用性使得 ZPP 能够在完全损伤之外使用，以补充描述更多个体的残余功能。

不适用

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Study design

Consensus process.

To provide a reference for the Zone(s) of Partial Preservation (ZPP) in the 2019 International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) and analyze the initial impact of applicability of the revised ZPPs. Revisions include the use of ZPPs in selected incomplete injuries (in addition to prior use in sensorimotor complete injuries). Specifically, the revised motor ZPPs are applicable bilaterally in injuries with absent voluntary anal contraction (VAC) and the revised sensory ZPP for a given side is applicable if deep anal pressure (DAP), light touch and pin prick sensation in S4-5 are absent on that side.

Committee with 16 ISNCSCI experts and datasets from the European Multicenter Study about Spinal Cord Injury (EMSCI).

Occurrence frequencies of applicable ZPPs were determined in an EMSCI cohort consisting of two ISNCSCI examinations from 665 individuals with traumatic SCI.

Motor ZPPs were derived in 35.2% of all datasets of incomplete injuries, while sensory ZPPs are much less frequent (1.0%). Motor ZPPs are applicable in all American Spinal Injury Association Impairment Scale (AIS) B datasets (mean ZPP length: 0.9 ± 1.0 segments), in 55.4% of all AIS C datasets (ZPP length: 11.8 ± 8.2 segments) and in 9.9% of the AIS D datasets (ZPP length: 15.4 ± 7.9 segments).

The revised ZPP allows for determining motor ZPPs in approximately 1/3 of all incomplete injuries. The broadened applicability enables the use of ZPPs beyond complete injuries for complementary description of residual functions in more individuals.

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