Introduction: As the varied results seen after posterior cruciate ligament (PCL) reconstructions might be due to surgical techniques that fail to reconstruct both functional bundles of the PCL and that injure the vastus medialis obliquus muscle, we developed a technique to address these problems and thus improve patient outcomes.
Step 1 Examine Under Anesthesia: Assess range of motion and patellofemoral stability; perform stress tests, Lachman and pseudo-Lachman tests, pivot shift test, drawer tests, reverse pivot shift test, and dial test.
Step 2 Perform Arthroscopy: Preserve any remnants of PCL at anterolateral and posteromedial bundle attachment sites to promote vascular healing.
Step 3 Drill Tibial Guidepin: Guidepin enters tibia at, roughly, 45° angle and 6 cm distal to joint line, midway between anterior tibial crest and posteromedial tibial border.
Step 4 Prepare Grafts: Use Achilles tendon allograft for anterolateral bundle and semitendinosus or tibialis anterior allograft for posteromedial bundle.
Step 5 Drill Tunnels: Guidepin position should be slightly lateral to midline between apices of medial and lateral tibial eminences on anteroposterior radiograph and approximately 7 mm proximal to "champagne-glass drop-off" on lateral radiograph.
Step 6 Place And Secure Grafts In Femur And Tibia: Tug hard on grafts through anterolateral arthroscopic portal to verify that they are secured within the femoral tunnel.
Step 7 Postoperative Care: Manage knee motion for first six weeks by prone knee flexion to counteract deleterious effects of gravity on reconstruction.
Results: In a cohort of thirty-nine total patients, thirty-three males and six females, with an average age of thirty-three years, seven isolated PCL reconstructions and thirty-two combined knee reconstructions were performed.
What To Watch For: IndicationsContraindicationsPitfalls & Challenges.
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http://dx.doi.org/10.2106/JBJS.ST.K.00025 | DOI Listing |
Acta Ortop Mex
January 2025
Hospital Internacional de Colombia, Piedecuesta, Santander, Colombia.
Introduction: the two most used types of prosthesis are posterior cruciate ligament preserving (CR) and posterostabilized (PS). Proponents of CR TKA cited greater stability, greater range of motion, better proprioception, and greater kickback associated with the native posterior cruciate ligament.
Objective: to assess the degree of pain, return of mobility and functionality of the joint of patients who had TKA, between the years January 2018 and December 2022 at the Juárez Centro Medical Surgical Unit, using their records as a study unit.
Orthop J Sports Med
January 2025
Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Background: The rate of subjective failure after isolated primary posterior cruciate ligament reconstruction (PCL-R) is relatively high, requiring an improved understanding of factors associated with inferior outcomes.
Purpose: To determine the association between patient and injury-related factors and total (surgical and clinical) failure at 2 years after PCL-R based on data from the Swedish National Knee Ligament Registry (SNKLR) and the Norwegian Knee Ligament Registry (NKLR).
Study Design: Cohort study; Level of evidence, 3.
Knee Surg Sports Traumatol Arthrosc
January 2025
Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
Purpose: Medial meniscus ramp lesions (MMRLs), lateral meniscus posterior root tears (LMPRTs), and anterolateral complex injuries (ALCIs) are major secondary stabiliser injuries associated with anterior cruciate ligament (ACL) injuries. This study aimed to investigate the effect of the number of secondary stabiliser injuries on knee instability in ACL injuries.
Methods: Patients who underwent primary ACL reconstruction between January 2017 and May 2023 were enroled in this study.
Knee Surg Sports Traumatol Arthrosc
January 2025
Orthopaedic Robotics Laboratory, Departments of Bioengineering and Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Purpose: To quantify the effect of increasing the posterior tibial slope (PTS) on knee kinematics and the resultant medial and lateral meniscal forces.
Methods: In this controlled laboratory study, a 6 degrees of freedom (DOF) robotic testing system was used to apply external loading conditions to seven fresh-frozen human cadaveric knees: (1) 200-N axial compressive load, (2) 5-N m internal tibial +10-N m valgus torque and (3) 5-N m external tibial + 10-N m varus torque. Knee kinematics and the resultant medial and lateral meniscal forces were acquired for two PTS states: (1) native PTS and (2) increased PTS.
Am J Sports Med
January 2025
Twin Cities Orthopedics, Edina, Minnesota, USA.
Background: Anterior cruciate ligament (ACL) stress techniques-including single-leg stress radiographs, Telos, and KT-1000 arthrometer-are highly accessible and can provide additional diagnostic information to assess ACL and ACL graft integrity. The degree of anterior tibial translation (ATT) may be useful in guiding treatment when a diagnosis on magnetic resonance imaging is not conclusive or for judging if additional treatments, such as anterolateral complex augmentation, may be necessary.
Purpose/hypothesis: The purpose of this study was to evaluate the effect of increasing posterior tibial slope (PTS) on baseline tibial position (BTP) and side-to-side differences (SSD) in ATT.
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