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【943】腰椎退行性疾病.ppt

  • 2026-10-31 06:26:34
【943】腰椎退行性疾病.ppt

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先看看我写的学习笔记,PPT往下翻。

一、腰椎间盘突出症

  1. 定义
    • 腰椎间盘退变,纤维环破裂,髓核等组织突出
    • 刺激或压迫神经根、窦椎神经
    • 以腰腿痛为主要表现的临床病变
  2. 病因
    • 椎间盘退行性变:根本原因,含水量下降、弹性减退
    • 损伤因素:慢性积累损伤、急性外伤
    • 妊娠:韧带松弛、腰骶负荷增加
    • 遗传:青少年患者约 32% 有家族史
    • 腰骶部发育异常:应力分布异常
  3. 病理与发病机制
    • 解剖结构:髓核、纤维环、软骨终板,血供极少
    • 退变生化改变:Ⅰ 型胶原增多、蛋白多糖下降、水分减少
    • 致病机制:机械性压迫学说、炎症反应学说
    • 分型:膨出型、突出型、脱出型、游离型、Schmorl 结节及经骨突出型
  4. 临床表现
    • 好发年龄 20~50 岁,男性多于女性
    • 主要症状:腰痛、坐骨神经痛、马尾综合征
    • 体征:腰椎侧凸、活动受限、压痛及骶棘肌痉挛、直腿抬高试验与加强试验阳性
    • 神经系统表现:感觉异常、肌力下降、反射异常
  5. 影像学检查
    • X 线:排除骨性病变,不能直接显示突出
    • CT:显示骨性结构、椎间盘突出、神经受压
    • MRI:诊断价值最高,显示软组织、突出位置与类型
    • 肌电图:辅助判断神经受损节段
  6. 诊断
    • 依据病史、症状、体征与影像学综合判断
    • 无症状仅有影像表现不能诊断本病
  7. 鉴别诊断
    • 腰肌劳损、第三腰椎横突综合征、梨状肌综合征
    • 腰椎管狭窄症、腰椎滑脱与峡部裂
    • 腰椎结核、脊柱肿瘤、椎管内肿瘤、盆腔疾病、下肢血管病变
  8. 治疗
    • 非手术治疗:卧床休息、药物、牵引、理疗
    • 手术治疗:开放手术、显微手术、微创手术、人工椎间盘置换

二、腰椎管狭窄症

  1. 定义
    • 椎管、神经根管、椎间孔狭窄
    • 压迫马尾或神经根引发的综合征
  2. 病因分类
    • 先天性 / 发育性狭窄
    • 继发性狭窄:退行性最多见,医源性、创伤性、滑脱继发
  3. 病理
    • 椎间盘退变、黄韧带肥厚、骨赘增生、关节突内聚
    • 椎管容积减小,神经缺血水肿
  4. 临床表现
    • 中老年多见,病史长
    • 典型症状:神经源性间歇性跛行
    • 体征特点:症状重、体征轻,后伸受限明显
  5. 影像学检查
    • X 线:退变表现
    • CT:关节突增生、椎管狭窄
    • MRI:多节段突出、硬膜囊蜂腰状狭窄
  6. 鉴别诊断
    • 腰椎间盘突出症、腰椎关节突关节综合征、腰背肌筋膜炎
  7. 治疗
    • 非手术治疗:休息、理疗、抗炎镇痛
    • 手术治疗:减压术、减压 + 融合内固定术

三、腰椎滑脱症

  1. 定义
    • 相邻腰椎椎体相对移位,以腰椎滑脱最常见
  2. 病因分型
    • 椎弓发育不良性、椎弓峡部裂性、退行性、创伤性、病理性、医源性
  3. 临床表现
    • 椎弓峡部裂性滑脱:腰痛、下肢放射痛、棘突台阶感
    • 退行性滑脱:好发 L4~5,腰痛、间歇性跛行
  4. 影像学检查
    • X 线斜位:狗形征,峡部崩裂为颈断裂
    • Meyerding 分度:Ⅰ~Ⅳ 度
    • CT、MRI:判断峡部完整性与神经受压
  5. 治疗
    • 非手术治疗:休息、药物、牵引、支具
    • 手术治疗:减压 + 复位 + 内固定 + 植骨融合

四、总结

  1. 腰椎间盘突出症:以突出压迫神经为主,典型腰腿痛、直腿抬高试验阳性
  2. 腰椎管狭窄症:以间隙性跛行、症状重体征轻为特点
  3. 腰椎滑脱症:以椎体移位、不稳、腰痛伴下肢痛为特点

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  1. CONNECT:[ UseTime:0.000691s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000959s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000529s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000377s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000513s ]
  6. SELECT * FROM `set` [ RunTime:0.000259s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000623s ]
  8. SELECT * FROM `article` WHERE `id` = 514876 LIMIT 1 [ RunTime:0.000362s ]
  9. UPDATE `article` SET `lasttime` = 1793865891 WHERE `id` = 514876 [ RunTime:0.001303s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000329s ]
  11. SELECT * FROM `article` WHERE `id` < 514876 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000445s ]
  12. SELECT * FROM `article` WHERE `id` > 514876 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000346s ]
  13. SELECT * FROM `article` WHERE `id` < 514876 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000476s ]
  14. SELECT * FROM `article` WHERE `id` < 514876 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000674s ]
  15. SELECT * FROM `article` WHERE `id` < 514876 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000618s ]
0.094899s