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Location and classification of popliteus tendon's origin: cadaveric study
Gu Hee Jung1, Jae Do Kim, Hyun Kim
1Department of Orthopaedic Surgery, Gospel Hospital, Kosin University, Amnam-dong, Seo-gu, Pusan, Republic of Korea. jyujin2001@kosin.ac.kr
Archives of Orthopaedic and Trauma Surgery
|June 4, 2010
Summary
The popliteus tendon (PT) attachment is typically postero-inferior on the lateral epicondyle when the knee is fully extended. This finding guides optimal femoral tunnel placement for PT reconstruction in posterolateral knee instability.
Area of Science:
- Orthopedic Surgery
- Anatomy
- Biomechanics
Background:
- Posterolateral knee instability often necessitates popliteus tendon (PT) reconstruction.
- Controversy exists regarding the ideal femoral tunnel location for PT reconstruction, typically near the lateral femoral epicondyle.
Purpose of the Study:
- To precisely describe the femoral attachment of the popliteus tendon (PT) and lateral collateral ligament (LCL).
- To identify an optimal femoral tunnel site for PT reconstruction based on anatomical dissection.
Main Methods:
- Dissection of nine embalmed cadavers (18 knees) in full extension.
- Detailed anatomical description of PT and LCL attachments relative to the lateral femoral epicondyle.
Main Results:
- The LCL attaches uniformly slightly inferior and posterior to the lateral epicondyle.
- The PT exhibits variable attachments, with a predominant postero-inferior location (13/18 knees) in full extension.
- PT attachment shifts anteriorly with knee flexion, becoming visible only in full extension.
Conclusions:
- The recommended femoral tunnel for PT reconstruction should be positioned postero-inferior to the LCL attachment in full knee extension.
- Accurate identification of the PT's native attachment site is crucial for successful reconstruction.
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