脊柱–骨盆–髋关节复合体：生物力学耦合、 病理交互与手术策略的演变

The Spine-Pelvis-Hip Complex: Biomechanical Coupling, Pathologic Interactions, and the Evolution of Surgical Strategies

摘要: 人体直立行走的进化特征决定了脊柱、骨盆与髋关节在解剖与功能上密不可分，构成了独特的脊柱–骨盆–髋关节复合体(Spine-Pelvis-Hip Complex, SPHC)。在传统“脊柱外科/关节外科”分科框架下，SPHC相关问题容易被“髋”和“脊柱”割裂评估，导致疼痛来源误判、影像学解释偏差以及围手术期策略不匹配。近年来，“髋–脊综合征”从症状学概念发展为可量化的几何与运动学框架：骨盆形态参数(如PI)限定个体矢状位对线潜力，姿势参数(PT、SS等)体现体位状态，站立–坐位转换中的骨盆旋转及脊柱柔韧性共同决定髋臼(或THA杯体)的功能性朝向与稳定边界。对于腰椎退变、既往融合或矢状位失衡导致的“脊柱–骨盆僵硬”患者，经典Lewinnek“安全区”常失效，撞击与脱位风险显著升高。本文以“形态学→姿势/活动度→功能性髋臼朝向→病理交互→手术策略”作为主线，梳理SPHC关键参数体系、多体位影像评估、常用分型(Stefl/Phan/Vigdorchik)及综合指标(如CSI)，并总结更具操作性的临床建议：以站立与坐位侧位片量化ΔSS/ΔPT，按分型设定目标杯位范围，必要时结合双动头/约束内衬、导航/机器人及手术顺序优化，从而在“功能性安全区”框架下实现个体化稳定性管理。

Abstract: Human bipedalism creates an inseparable anatomic and functional linkage among the spine, pelvis, and hip, conceptualized as the Spine-Pelvis-Hip Complex (SPHC). Under the traditional separation of “spine” and “hip” specialties, SPHC-related disorders are often assessed in isolation, increasing the risk of misidentifying pain generators, misinterpreting imaging, and applying mismatched perioperative strategies. In recent years, hip-spine syndrome has evolved from a symptom-based concept into a quantifiable geometric and kinematic framework: pelvic morphologic parameters (e.g., pelvic incidence) define an individual’s sagittal alignment potential, while postural parameters (pelvic tilt and sacral slope) reflect position-dependent states. Importantly, pelvic rotation during standing-to-sitting transition and spinal flexibility jointly determine functional acetabular (or total hip arthroplasty cup) orientation and stability boundaries. In patients with lumbar degeneration, prior fusion, or sagittal malalignment with reduced spinopelvic mobility, the classic Lewinnek “safe zone” may fail, leading to higher impingement and dislocation risk. This narrative review follows a logical pathway—morphology → posture/mobility → functional acetabular orientation → pathologic interaction → surgical strategy—to summarize key parameters, multiview imaging workup, commonly used classifications (Stefl/Phan/Vigdorchik), and integrative metrics (e.g., CSI). We emphasize actionable recommendations, including standardized standing and sitting lateral radiographs to quantify ΔSS/ΔPT, classification-guided target cup orientation, and selective use of dual-mobility/constrained constructs and navigation/robotics to achieve a functional, patient-specific safe zone.