Publications by authors named "Ortiz-Miguel S"

Article Synopsis
  • The study investigates the relationships between the proximal attachments of hamstring muscles and surrounding structures using ultrasound and anatomical samples from 97 hemipelvis specimens.
  • Results show distinct hyperechogenic lines surrounding the origins of the semimembranosus and biceps femoris, and reveal that the semimembranosus muscle has a more proximal origin compared to other hamstring muscles.
  • The findings suggest that these anatomical connections may help explain the common injuries at the origins of the hamstring muscles.
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Background: Neurodynamic tests are an essential aspect of the physical examination of the patient when suspicion of neural involvement exists. A manoeuvre that is hypothesised to move nerves differentially relative to other structures (structural differentiation) has been proposed as a necessary part of neurodynamic testing for differential diagnosis. However, although the specificity of structural differentiation for peripheral nerve over muscle has been demonstrated in some body regions, no study has tested specificity of nerve movement relative to fascia.

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(1) Background: Breast reduction is one of the most frequently performed plastic surgeries in women worldwide. The Wise pattern breast reduction is one of the most frequent skin designs for this surgery. One key point of the surgery is to preserve a well-vascularized NAC by using different surgical pedicles.

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Article Synopsis
  • - The study focused on the semimembranosus muscle and its tendons, highlighting their anatomical features and relevance to knee pathologies through ultrasound examination and dissection.
  • - Researchers examined 38 adult and 4 fetal knee specimens to analyze the muscle's anatomy and functions, noting significant tendon divisions, muscle rotation, and key measurements of the structure.
  • - Findings showed important anatomical relationships that aid in understanding knee issues, which can enhance diagnosis and rehabilitation strategies following knee surgery.
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  • This study examined the shoulder anatomy in adults, focusing on the muscles and their relationships using ultrasound, dissection, and microscopic techniques on 34 human shoulders.
  • The findings showed that while ultrasound and dissection measurements are correlated, dissection provided more accurate thickness measurements for tendons and fascia, except for a few specific cases.
  • The research highlighted significant anatomical interconnections between shoulder structures, indicating that injury to one area could affect adjacent tissues, and provided reference values for tendon and fascia thicknesses, with no gender differences observed.
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Purpose: Compartment syndrome is a surgical emergency that can occur in any part of the body and can cause cell necrosis when maintained over time. The resulting defects can affect the nerves, muscle cells, bone tissue, and other connective tissues inside the compartment, and fasciotomy has to be performed. The anatomical and histological characteristics of the leg make acute, chronic, and exertional compartment syndrome more likely in this limb.

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Background: Ulnar nerve entrapment is one of the most common entrapment neuropathies, usually occurring in the cubital tunnel of the elbow and in Guyon's canal of the wrist. However, it can also occur at other anatomical locations.

Purpose: Our aim was to review other possible locations of ulnar nerve entrapment in an ultrasound and anatomical study.

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Background: Evidence suggests that tibialis posterior muscle plays an important role in equinovarus foot deformity in patients who had suffered a stroke and it is one of the most frequently injected lower-extremity muscles for the management of spasticity. Our aim was to assess if a needle accurately and safely penetrates the tibialis posterior muscle during the application of dry needling.  METHODS : We conducted a cadaveric descriptive study.

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Introduction: Huntington's disease (HD) is a degeneration of the brain.

Objective: To assess the evidence of the physical activity (PA) to improve motor function, gait speed, and walking endurance in individuals with HD.

Materials And Methods: Two reviewers independently screened references and selected relevant studies to identify randomized controlled trials (RCT), from MEDLINE/PubMed, CENTRAL, PEDro, Scopus, CINAHL, Web of Science databases from inception to September 2021.

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Article Synopsis
  • Fasciae have gained attention for their role in proprioception and force transmission, yet fetal fasciae development and retinacula are understudied, raising questions about their genetics and timing of appearance.
  • This study investigates the structural organization of retinacula in fetuses (24-40 weeks gestation), using various staining techniques to analyze their development and determine the presence of specific proteins and fibers.
  • Findings reveal that while deep fasciae and the iliotibial tract begin to form by 27 weeks, retinacula are not fully developed until late pregnancy, suggesting that movement plays a key role in their maturation after birth.
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This study aimed to evaluate changes in neuromuscular function and pain perception in latent trigger points (TrPs) in the gastrocnemius muscle after a single session of dry needling. A randomized within-participant clinical trial was conducted. Fifty volunteers with latent TrPs in the gastrocnemius muscles were explored.

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The course of the posterior antebrachial cutaneous nerve (PACN) was studied via ultrasound (US) and dissection. The aim of this study was to reveal the anatomical relationships of PACN with the surrounding structures along its pathway to identify possible critical points of compression. Nineteen cryopreserved cadaver body donor upper extremities were explored via US and further dissected.

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Purpose: Acute compartment syndrome is defined as a limb-threatening condition caused by bleeding or oedema in a closed muscle compartment surrounded by fascia or bone. It is most commonly encountered in the forearm, which has three compartments: posterior, anterior and lateral. These are surrounded and closed in by the antebrachial fascia, formed by dense connective tissue that facilities their study on ultrasound and is key to fasciotomy treatment.

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Objective: The purpose of this study was to evaluate changes in neuromuscular function, pain perception, and basic physical properties in latent myofascial trigger points (TrPs) after a single treatment session of ischemic compression in the gastrocnemius muscle.

Methods: A randomized within-participant clinical trial with a blinded assessor was conducted. Twenty-nine asymptomatic volunteers with latent gastrocnemius-muscle TrPs were bilaterally explored.

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Objective: The piriformis syndrome is one of the etiologies of pelvic pain due to the sciatic nerve's entrapment by the piriformis muscle. Nowadays this syndrome might be difficult to be diagnosed. The aim of this study is to know the prevalence of anatomic variations in our population that may contribute to the appearance of piriformis syndrome.

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