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Tytuł pozycji:

The PCL Envelope Lack Sign (PELS) Is a Direct Arthroscopic Sign of Chronic Posterior Cruciate Ligament Insufficiency

Tytuł:
The PCL Envelope Lack Sign (PELS) Is a Direct Arthroscopic Sign of Chronic Posterior Cruciate Ligament Insufficiency
Autorzy:
Domżalski, Marcin E.
Hermanowicz, Krzysztof
Malinowski, Konrad
LaPrade, Robert F.
Góralczyk, Adrian
Ebisz, Michał
Mostowy, Marcin
Sibilska, Aleksandra
Data publikacji:
2021
Słowa kluczowe:
posterior cruciate ligament
arthroscopic sign
posterior knee arthroscopy
chronic PCL insufficiency
Język:
angielski
ISBN, ISSN:
20763417
Prawa:
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
http://creativecommons.org/licenses/by/4.0/legalcode.pl
Linki:
https://www.mdpi.com/2076-3417/11/8/3608  Link otwiera się w nowym oknie
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Purpose: To present the arthroscopic “PCL envelope lack sign” (PELS) and to calculate its diagnostic characteristics in chronic PCL insufficiency. Methods: Recordings of knee arthroscopies performed in a single clinic between April 2015 to March 2020 were retrospectively evaluated, searching for the “PCL envelope”. It was defined as a “soft tissue cuff coursing around the PCL tibial attachment, visible with the arthroscope positioned between the PCL, medial femoral condyle and posterior horn of the medial meniscus at the level of its shiny white fibers”. PELS was defined as “the PCL adhering to the proximal tibia adjacent to the medial meniscal posterior root attachment, inability to observe the normal space between the PCL and posterior tibia and no soft tissue cuff around the PCL tibial attachment”. Inclusion criteria were possibility to evaluate the PELS presence on recordings. Patients who underwent PCL reconstruction were assigned to the study group. The rest of the patients were controls. Criteria to operate on symptomatic PCL patients were at least 5 mm of posterior instability in physical examination and at least 6 months post-injury. Results: Out of 614 available recordings, 592 patients (205 females, 387 males; mean age 45.2 years, SD = 14.36, range 14–81) were included: 38 in the study group and 554 in the control group. In the study group, PELS was positive in 36 of 38 cases (94.7%). In the control group, PELS was negative in 554 PCL-efficient patients (100%). Calculated PELS sensitivity was 94.7%, specificity 100%, positive predictive value 100%, negative predictive value 99.6%. The PELS was present significantly more often in PCL-insufficient patients, p < 0.001. Conclusions: The PCL envelope lack sign was found to be a highly effective tool to arthroscopically confirm chronic PCL insufficiency, and should be considered a direct sign of chronic posterior knee instability.

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