経皮的修正腸骨ネジ固定術:手技と臨床経験
Soo Hyun Lee1, Chun Kee Chung2, Do Heum Yoon1
1Department of Neurosurgery, College of Medicine, CHA Bundang Medical Center, CHA University, 59, Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea.
Acta neurochirurgica
|January 22, 2026
まとめ
経皮的修正腸骨ネジ(PMIS)手技は、仙腸骨固定術に対して安全で低侵襲なアプローチを提供する。この方法は他の手技に伴う合併症を回避し、有望な初期結果を示している。
科学分野:
- 脊椎外科
- 整形外科
- 低侵襲手技
背景:
- S1椎弓根スクリューは、緩みや破損の発生率が高い。
- 従来の腸骨ネジ(CIS)およびS2翼腸骨(S2AI)手技は、安定性を向上させるが、限界がある。
- 仙腸骨固定術には、より低侵襲な手技が必要とされている。
研究 の 目的:
- 仙腸骨固定術における経皮的修正腸骨ネジ(PMIS)手技の安全性と有効性を評価すること。
- PMISと、CISおよびS2AIなどの従来の術式を比較すること。
- 低侵襲アプローチにおけるPMISの実現可能性を評価すること。
主な方法:
- PMISを受けた10例(男性2例、女性8例、平均年齢59.9歳)の後ろ向き症例シリーズ。
- 仮想透視参照線を使用して、腸骨内の海綿骨通路への安全なネジ挿入を行った。
- X線写真を用いて、術前および術後の脊椎骨盤パラメータ(PI、PT、SS)および合併症を評価した。
主要な成果:
- 感染、ネジ突出、またはネジ関連合併症は認められなかった。
- 関連性のない脊椎感染の進行のため、1例の再手術が必要であった。
- 脊椎骨盤パラメータ(PI、PT、SS)は、術前および最終フォローアップで安定していた。
結論:
- PMIS手技は、仙腸骨固定術の安全で低侵襲な選択肢である。
- PMISは、CISおよびS2AIの限界を克服しつつ、軟部組織の剥離を最小限に抑える。
- PMISの有効性と臨床的有用性を確認するために、より大規模なコホートによるさらなる研究が推奨される。
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