Publications by authors named "Leonardo Addeo Ramos"

Reconstruction of the anterior cruciate ligament (ACL) is a common procedure for injuries to this ligament, especially in athletes. There are different types of grafts used, and the choice depends on several factors. Autologous grafts, from the patients themselves, are the most common option, with rapid incorporation and a lower failure rate.

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 The purpose of this study was to evaluate the clinical and functional results of simultaneous reconstruction of the ACL and PCL with bilateral hamstring autografts. We hypothesized that this reconstruction technique results in less morbidity and has similar results to the ones published in the previous literature.  Eighteen patients with bicruciate lesions were selected and treated by arthroscopic surgery with autologous hamstring tendons in a single-stage procedure.

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Article Synopsis
  • The study aimed to compare peak extensor torque, sensory-motor capacity, and Lysholm questionnaire scores after ACL reconstruction using either an ipsilateral (same leg) or contralateral (opposite leg) technique in young athletes.
  • A randomized controlled trial with 88 male patients revealed that the contralateral technique significantly improved peak extension torque and resulted in better symmetry in muscle performance compared to the ipsilateral technique.
  • The findings indicated that using a contralateral BPTB graft was more effective for enhancing muscle performance post-surgery, although no significant differences were found in sensory-motor capacity or Lysholm scores between the two groups.
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Injury to the medial compartment of the knee is the most common ligament injury to this joint. The medial approach must consider the presence of associated anteromedial instability. Untreated injury of these instabilities can result in failure of the other reconstructed ligaments.

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Background: Despite the increasing international popularity of CrossFit, there is a paucity of scientific evidence on the risk of CrossFit-related musculoskeletal injuries (CRMIs).

Purpose: To investigate the incidence (cumulative incidence proportion [IP] and incidence density [ID]) of CRMIs and the association of CRMIs with personal and training characteristics.

Study Design: Descriptive epidemiology study.

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Background: The middle genicular artery (MGA) is responsible for the blood supply to the cruciate ligaments and synovial tissue. Traumatic sports injuries and surgical procedures (open and arthroscopic) can cause vascular damage. Little attention has been devoted to establish safe parameters for the MGA.

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Objective: to determine the reference points for the exit of the tibial guidewire in relation to the posterior cortical bone of the tibia.

Methods: sixteen knees from fresh cadavers were used for this study. Using a viewing device and a guide marked out in millimeters, three guidewires were passed through the tibia at 0, 10 and 15 mm distally in relation to the posterior crest of the tibia.

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Muscle injury causes functional impairment. The healing process takes time and fibrotic tissue can result. Recurrence and delayed recovery remain as unsolved problems.

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Liposarcoma is an uncommon malignant tumor. It originates in the mesenchymal cells, and is the most common of the soft tissue sarcomas. The authors report a case of a 40 year-old male tennis player with liposarcoma in the posterior right knee and distal thigh region.

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Purpose: To evaluate the posterior septum of the knee and determine the presence of a safe zone that could be removed, without significant damage to blood vessels and nerves.

Methods: Nineteen fresh unpaired adult human cadaveric knees, with no macroscopic degenerative or traumatic changes, were used in this study. Microscopic evaluation was performed by analysis of H&E, CD-34, and S-100 staining.

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Article Synopsis
  • The study investigates patellar tendinopathy, focusing on the pain at the inferior pole of the patella, which is common in sports injuries.
  • It involved palpation tests on 318 individuals with knee complaints, revealing that 39% experienced pain during the test, but only about 32% of those were diagnosed with patellar tendinopathy.
  • The findings suggest that while palpation is a sensitive diagnostic tool, it has moderate specificity, particularly for those engaged in high-intensity physical activities.
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Purpose: The aim of this anatomic study on cadavers was to determine the anatomic relation between the posterior cruciate ligament (PCL) and the posterior joint capsule attachment.

Methods: Thirty knees were dissected by means of a posterior approach to the knee. The presence of the posterior popliteal ligament and Wrisberg meniscofemoral ligament was observed and a U-shaped capsulotomy was performed while preserving the distal insertion of the ligament.

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