Background: Although many posterior cruciate ligament (PCL) injuries are in combination with posterolateral corner (PLC) injuries, there has been little research on combined injury reconstruction; the literature includes differing recommendations.
Hypothesis: Combined PCL plus PLC reconstruction corrects the abnormal posterior translation, varus, and external rotation laxities caused by combined PCL plus PLC deficiency. Furthermore, double-bundle PCL plus PLC reconstruction restores laxity closer to normal than single-bundle PCL plus PLC reconstruction.
Study Design: Controlled laboratory study.
Methods: Cadaveric knee kinematics were measured electromagnetically in 9 knees with posterior drawer, external rotation, and varus rotation loads applied at sequential stages: intact, PCL-deficient, PCL plus PLC-deficient, double-bundle PCL plus modified Larson PLC reconstruction, and single-bundle PCL plus modified Larson PLC reconstruction. Each graft was tensioned using a laxity-matching protocol.
Results: There was no significant difference between single-bundle and double-bundle PCL reconstruction, in combination with the modified Larson reconstruction, at any angle of flexion. Both combined reconstructions restored posterior drawer, external rotation, and varus laxity so that they did not differ significantly from normal.
Conclusion: In combined PCL plus PLC deficiency, combined PCL plus PLC reconstruction restored all major laxity limits to normal across the range of knee flexion examined. Double-bundle PCL reconstruction was not better than single-bundle reconstruction in this context.
Clinical Relevance: The added complexity of double-bundle reconstruction does not seem to be justified by these results. In combined PCL plus PLC-deficient knees, combined single-bundle PCL plus modified Larson PLC reconstruction was sufficient to restore posterior drawer, external rotation, and varus laxity to normal.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1177/0363546508314415 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Arthroscopic-Assisted Posterolateral Corner Reconstruction of the Knee: Novel Technique, Classification, Surgical Algorithm, and Midterm Results.
Arch Bone Jt Surg
January 2024
Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
Objectives: This study aimed to introduce a new arthroscopic method for reconstructing the popliteus tendon (PT). This minimally invasive technique is performed through the posterolateral corner (PLC) of the knee, which can reconstruct the posterolateral rotary instability (PLRI) of the knee.
Methods: Thirty-nine patients (8 females, 31 males) with PLC injury and normal knee alignment underwent arthroscopic PT reconstruction.
Combined PCL and anatomic posterolateral corner reconstruction: A tibial slope under 8 degrees and a persisting dorsal instability of 4 mm or more have a negative effect on the clinical outcome.
Arch Orthop Trauma Surg
December 2024
Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Purpose: The failure rate following posterolateral corner reconstruction (PLC) remains high. Previous research indicates that in posterior cruciate ligament (PCL) reconstruction the laxity is affected by the tibial slope (TS). However, there is currently no literature evaluating the impact of TS on surgical outcome in combined reconstruction of PLC/PCL.
View Article and Find Full Text PDFPurpose: Ruptures of the posterior cruciate ligament (PCL) are often accompanied by posterolateral corner (PLC) and posteromedial corner (PMC) injuries. This study investigates the incidence and impact of PMC and PLC injuries on posterior tibial translation (PTT). It was hypothesized that PMC injuries are more common and impactful than previously reported.
View Article and Find Full Text PDFZwitterionic 2-Phosphaethene-thiolates [(L)P=CS(L)] as PCS Building Blocks (L=NHC, L=PR).
Angew Chem Int Ed Engl
November 2024
Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Article Synopsis
- The zwitterionic compounds [(L)P=CS(L)] (3), synthesized as triflate salts, show promise as building blocks for PCS (phosphorus-containing species) by reacting with various electrophiles and nucleophiles for selective functionalization.
- These compounds can act as ambident nucleophiles and create a unique linear coordination polymer with AgOTf, marking a significant step in transition metal complex applications.
- Reduction of 3 leads to the formation of the [PCS] anion, while cycloaddition reactions create polyphosphorus heterocycles, indicating potential for further exploration of the C-S bond activation in future research.
Posterior Cruciate Ligament and Posterolateral Corner Reconstruction: Clinical Outcomes Following Popliteal Tendon Tenodesis and Popliteal Tendon Reconstruction.
Indian J Orthop
November 2024
Orthopaedic and Traumatology Department, Centro de Traumatologia do Esporte, Universidade Federal de São Paulo- Escola Paulista de Medicina, Rua Borges Lagoa 783, São Paulo, SP Brazil.
Introduction: Injuries to the posterolateral compartment (PLC) of the knee require special attention, as incorrect diagnosis and treatment may lead to considerable morbidity. However, no gold standard treatment has been established for PLC injuries.
Methods: 38 patients with concomitant (posterior cruciate ligament (PCL) and PLC injuries were divided into two groups according to surgical treatment of the proximal popliteal tendon injury.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!