Case: We present a case of a 41-year-old male bodybuilder with a partial delaminated quadriceps tendon rupture after a traumatic injury. Partial quadriceps tendon tears are rare overall and usually are treated nonoperatively with conservative management depending on the patient's limitations. He was found to have an intact superficial quadriceps tendon with a partial thickness tear of the vastus intermedius and delamination of the undersurface quadriceps tendon precluding active knee extension.
Conclusion: To our knowledge, there has never been a reported partial quadriceps tendon tear with delamination of the undersurface, causing a complete extensor mechanism failure necessitating operative repair.
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http://dx.doi.org/10.2106/JBJS.CC.20.00631 | DOI Listing |
Knee Surg Sports Traumatol Arthrosc
December 2024
Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Münster, Germany.
Purpose: To biomechanically evaluate a flat posterior cruciate ligament (PCL) reconstruction utilizing rectangular femoral bone tunnels.
Methods: Eight fresh-frozen human knee specimens were tested in a six-degrees-of-freedom robotic test setup. In each testing step, a force-controlled test protocol was performed, including 89 N posterior tibial translation (PTT) in neutral, internal and external rotation, from 0 to 90° of flexion.
BMC Musculoskelet Disord
December 2024
Center for Joint Surgery, The First Hospital Affiliated to Army Medical University, Chongqing, 400038, China.
Background: Although chronic quadriceps tendon rupture and defect are rare, they pose significant challenges in surgical treatment. In these cases, quadriceps tendon reconstruction is necessary. Either autologous or allogeneic tendons have been used for this reconstruction.
View Article and Find Full Text PDFJ Sci Med Sport
December 2024
Department of Orthopedics and Sports Medicine, Erasmus MC University Medical Center, the Netherlands.
Objectives: To investigate whether the effectiveness of progressive tendon loading exercises (PTLE) on patellar tendinopathy is mediated through changes in physical or imaging properties.
Design: Mediation analyses based on a randomized clinical trial (n = 76) in patellar tendinopathy comparing PTLE with eccentric exercise therapy (EET).
Methods: Pain-related disability on Victorian Institute of Sports Assessment-Patella (VISA-P, 0 to 100) and pain (Visual Analogue Score) after single-leg decline squat (VAS-SLDS, 0 to 10) at 24 weeks were outcome measures.
Arthrosc Tech
November 2024
Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, Alabama, U.S.A.
Lateral patellar dislocations represent a common orthopaedic condition in young, active individuals who experience patellar instability. Despite increasing interest in re-creating the natural biomechanics and native knee anatomy when performing medial patellar soft-tissue reconstructive procedures, there is no consensus among surgeons regarding the best techniques to use when reconstructing the medial patellofemoral ligament and medial quadriceps tendon-femoral ligament. This article details a method to reconstruct the medial patellofemoral ligament and medial quadriceps tendon-femoral ligament using a single graft and a single all-suture knotless anchor on the patella.
View Article and Find Full Text PDFRev Bras Ortop (Sao Paulo)
December 2024
Departamento de Ortopedia e Traumatologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
To compare the clinical outcomes of anterior cruciate ligament (ACL) reconstruction using autografts with and without internal brace augmentation. Data from patients who underwent ACL reconstruction with hamstring and quadriceps tendon autografts, with a minimum follow-up of one year, with or without internal brace augmentation were collected prospectively analyzed retrospectively. The Lysholm and Tegner functional scores were collected before and after surgery, as well as data on postoperative complications.
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