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Arthroscopic Posterior Capsulotomy for Knee Flexion Contracture Using a Spinal Needle.
Krishna V Suresh1, Ijezie Ikwuezunma1, Adam Margalit1
1Department of Orthopaedic Surgery, Johns Hopkins University Hospital, Baltimore, Maryland, U.S.A.
Arthroscopy Techniques
|August 17, 2021
Summary
This study introduces a novel arthroscopic technique for knee flexion contracture release. A modified posterior capsular release using a spinal needle effectively addresses limited knee extension.
Area of Science:
- Orthopedic Surgery
- Arthroscopy
- Knee Biomechanics
Background:
- Knee flexion contractures result from posterior capsule arthrofibrosis.
- These contractures limit knee extension and increase contralateral joint stress.
- Surgical release of the posterior capsule is a potential treatment option.
Purpose of the Study:
- To present a modified arthroscopic surgical technique.
- To describe a percutaneous posterior capsule release for knee flexion contracture.
- To utilize a spinal needle for arthrolysis.
Main Methods:
- Modified arthroscopic posterior capsular release.
- Percutaneous technique utilizing a spinal needle.
- Arthrolysis of posteromedial and posterolateral capsules.
Main Results:
- The technique aims for effective resolution of extension deficits.
- Minimal risk of postoperative complications is anticipated.
- This method offers an alternative to traditional arthroscopic instruments.
Conclusions:
- The modified technique provides a minimally invasive approach for knee flexion contracture.
- Percutaneous posterior capsule release with a spinal needle is feasible.
- This method may improve outcomes for patients with limited knee extension.

