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Related Experiment Video

Updated: Oct 26, 2025

Harvesting of Peroneus Longus Tendon Autograft

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Lateral Patellar Retinaculum Z-Lengthening.

Derek J Hayden¹, Chintan Doshi², Shital N Parikh²

¹The Orthopedic Residency of York, Department of Orthopaedic Surgery, WellSpan-York Hospital, York, Pennsylvania, U.S.A.

Arthroscopy Techniques

|August 2, 2021

Summary

Lateral retinacular lengthening involves a surgical technique to treat patellar hypercompression syndrome and instability. This procedure utilizes the two-layered structure of the lateral retinaculum for coronal plane Z-lengthening.

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Area of Science:

Orthopedic surgery
Knee biomechanics

Background:

The lateral retinaculum is a critical two-layered structure in knee anatomy.
Understanding its layered composition is key to addressing patellofemoral issues.

Purpose of the Study:

To describe the surgical technique for lateral retinacular lengthening.
To highlight its application in treating lateral patellar hypercompression syndrome.
To present its utility as an adjunct in managing patellar instability.

Main Methods:

The technique involves utilizing the plane between superficial oblique and deep transverse fibers.
Coronal plane Z-lengthening of the lateral retinaculum is performed.

Main Results:

The described surgical technique facilitates effective lateral retinacular lengthening.
This procedure offers a viable treatment option for specific knee conditions.

Conclusions:

Lateral retinacular lengthening is a valuable surgical option for patellofemoral pain and instability.
The described technique provides a reproducible method for orthopedic surgeons.