腰部脊柱管狭窄症に対する支援型全内視鏡下脊椎手術:技術ノートと学習曲線
Koichiro Ono1, Daisuke Fukuhara1,2, Yuka Yamami1
1Department of Orthopedic Surgery, Nippon Medical School, Tokyo, Japan.
Brain & spine
|January 26, 2026
まとめ
支援型全内視鏡下脊椎手術(AFESS)は、腰部脊柱管狭窄症(LSS)の効果的な治療法であり、顕著な疼痛緩和と高い関節突起温存率を提供します。この低侵襲手技は、安全かつ効率的な臨床導入を示す明確な学習曲線を示しています。
科学分野:
- 低侵襲脊椎手術
- 脊椎除圧術
- 整形外科
背景:
- 腰部脊柱管狭窄症(LSS)は、衰弱させるような腰痛および脚部痛を引き起こす。
- 従来の全内視鏡下脊椎手術には限界がある。
- 支援型全内視鏡下脊椎手術(AFESS)は、単孔式および二孔式アプローチの利点を組み合わせることを目的としている。
研究 の 目的:
- LSS除圧に対するAFESSの有効性を評価する。
- AFESSによる関節突起温存の程度を評価する。
- AFESS手技に関連する学習曲線を決定する。
主な方法:
- AFESSで治療された33名のLSS患者の後ろ向きレビュー。
- 患者を初期(20名)および後期(13名)の段階に分けた。
- 評価項目:手術時間、関節突起温存率、合併症、VAS痛スコア(6ヶ月フォローアップ)。
主要な成果:
- 手術時間(当初から後期にかけて)が有意に短縮(99分から72分)。
- 関節突起の温存率が後期に改善(68.9%から76.2%)。
- 腰痛および放散痛の両方について、両期間でVAS痛スコアが有意に低下(p < 0.01)。
結論:
- AFESSはLSSに対する安全かつ効果的な治療法である。
- 十分な除圧を達成し、顕著な関節突起温存と疼痛緩和を実現する。
- 臨床導入のための管理可能な学習曲線を示す。
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