Publications by authors named "Gabriel F Santiago"

Article Synopsis
  • - A case study investigated how an isokinetic exercise program affected muscle performance and physical function in a 23-year-old professional soccer player with a complete PCL injury after participating in 23 treatment sessions over nine weeks.
  • - The athlete showed significant improvements in peak torque for both knee extensors and flexors, surpassing a control athlete's performance, and had a restored physical function of 98.7% by the end of the treatment.
  • - Results suggest that isokinetic training can effectively enhance knee functionality and muscle performance in athletes recovering from PCL injuries.
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Vascularized composite allotransplantation of the face is an exceedingly complex procedure, requiring extensive planning and surgical precision in order to successfully manage patients with facial disfigurements. This review aims to present an overview of the salient anatomic considerations in facial transplantation, as well as give attention to unique patient populations and special considerations.A literature review was performed in search of articles pertaining to considerations in facial transplantation using the databases PubMed, Web of Science, and Cochrane.

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Background: Cranioplasty is critical to cerebral protection and restoring intracranial physiology, yet this procedure is fraught with a high risk of complications. The field of neuroplastic surgery was created to improve skull and scalp reconstruction outcomes in adult neurosurgical patients, with the hypothesis that a multidisciplinary team approach could help decrease complications.

Objective: To determine outcomes from a cohort of cranioplasty surgeries performed by a neuroplastic surgery team using a consistent surgical technique and approach.

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During the USNS Comfort mobilization to New York City in response to the pandemic, the ship's medical team cared for over 35 mechanically ventilated corona virus disease 2019 (COVID-19) infected patients. Due to the better than expected mortality rates of these patients, tracheotomy for prolonged intubation or other indicated interventional bronchoscopies were performed on 7 COVID positive patients, as well as 2 with negative screening tests. No member of the health care team subsequently became symptomatic or tested positive for COVID-19.

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In December of 2019, a novel virus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) produced a cluster of viral pneumonia cases in Wuhan, China. In the United States (US), New York City was particularly devastated, with the volume and acuity of patients placing an unprecedented strain on the hospital system and health care workers. In response to this crisis, USNS Comfort (T-AH 20) was deployed to New York City with a 1100 member medical team to augment local hospitals.

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The outbreak of novel coronavirus disease 2019 (COVID-19) has had a momentous impact on the field of otolaryngology due to the high number of aerosol-generating procedures involving the upper aerodigestive tract. These procedures bear significant risk to the provider and clinical environment due to the possibility of viral aerosolization. While significant attention has been appropriately paid to personal protective equipment during this pandemic, an understanding of industrial hygiene is also necessary for the safe delivery of health care to mitigate the risk of exposure to other patients and health care workers.

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Introduction: Cranioplasty (CP) is a multifaceted procedure in a heterogenous patient population, with a high risk for complication. However, no previous large-scale studies have compared outcomes in primary (ie, first attempt) CP versus revision CP (ie, following previous attempts). The authors, therefore, analyzed long-term outcomes of 506 consecutive primary and revision CPs, performed by a single surgeon.

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Objectives: After reading this article, the participant should be able to: Understand the etiology of cranial defects. Understand the anatomy of the cranium. Understand the importance of the preoperative workup in the cranial reconstruction decision-making process.

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Background: Implantable shunt devices are critical and life saving for hydrocephalus patients. However, these devices are fraught with high complication rates including scalp dehiscence, exposure, and extrusion. In fact, high shunt valve profiles are correlated with increased complications compared to those with lower profiles.

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Introduction: Numerous techniques have been described to overcome scalp deficiency and high-tension closure at time of cranioplasty. However, there is an existing controversy, over when and if a free flap is needed during complex skull reconstruction (ie, cranioplasty). As such the authors present here our experience using full-thickness skin grafts (FTSGs) to cover local defects following scalp adjacent tissue transfer in the setting of cranioplasty.

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Introduction: An irregular craniofacial contour along the temporal fossa, known commonly as 'temporal hollowing deformity,' (THD) can arise from multiple etiologies. In fact, up to half of all patients who undergo neurosurgical pterional dissections develop some form of temporal contour deformities. Unfortunately, temporal hollowing correction remains surgically challenging with many techniques resulting in high rates of failure and/or morbidity.

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Introduction: Combined mid-face and nasal apparatus trauma injuries pose a significant challenge to airway patency (AW), in the immediate postoperative setting following fracture reduction. As such, the authors describe a modified technique with the goal of maintaining a patent nasal AW, while at the same time, minimizing nasopharyngeal bleeding and nasal AW edema-which can complicate patients requiring intermaxillary fixation (IMF) in the setting of pan-facial trauma.

Methods: A modified technique was devised to assist the reconstruction surgeon in avoiding the risks associated with tracheostomy placement.

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Article Synopsis
  • Delayed cranioplasty for complex cranial defects poses significant challenges, with complications occurring in 35-40% of cases; the authors share their experiences with various techniques, timings, and biomaterials used.
  • Over a 5-year period, the authors utilized custom cranial implants and the pericranial-onlay technique, focusing on objective criteria to determine optimal timing and implant material, achieving a substantial reduction in complications compared to existing methods.
  • The study highlights the effectiveness of a multidisciplinary approach in secondary cranial reconstruction, reporting a major complication rate of just 11%, suggesting that their practices may offer a safer and more reliable alternative to standard cranioplasty techniques.
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Purpose: Temporal hollowing deformity (THD) is a visible concavity/convexity in the temporal fossa; a complication often seen following neurosurgical/craniofacial procedures. Although numerous techniques have been described, no study to date has shown the healthcare costs associated with temporal hollowing correction surgery. Thus, the purpose here is to compare and contrast the direct costs related to temporal cranioplasty using various methods including: liquid poly-methyl-methacrylate (PMMA) implants with screw fixation, prebent, modified titanium mesh implants, and customized cranial implants (CCIs) with dual-purpose design.

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Background: Neuromodulation devices have the potential to transform modern day treatments for patients with medicine-resistant neurological disease. For instance, the NeuroPace System (NeuroPace Inc, Mountain View, California) is a Food and Drug Administration (FDA)-approved device developed for closed-loop direct brain neurostimulation in the setting of drug-resistant focal epilepsy. However, current methods require placement either above or below the skull in nonanatomic locations.

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Background: Multidisciplinary approaches have shown improved outcomes in secondary cranial reconstruction, however, scalp deficiency remains a common obstacle for tension-free scalp closure during cranioplasty. Therefore, our objective was to create an algorithmic approach using a novel concept of "component separation" to help minimize potential complications.

Methods: The authors tested the hypothesis of achieving greater scalp mobility by way of "component separation" in a half-scalp, bilateral cadaver study, and describe within 2 clinical examples.

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Introduction: Current protocols for facial transplantation include the mandatory fabrication of an alloplastic "mask" to restore the congruency of the donor site in the setting of "open casket" burial. However, there is currently a paucity of literature describing the current state-of-the-art and available options.

Methods: During this study, we identified that most of donor masks are fabricated using conventional methods of impression, molds, silicone, and/or acrylic application by an experienced anaplastologist or maxillofacial prosthetics technician.

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Background: Le Fort-based, maxillofacial allotransplantation is a reconstructive alternative gaining clinical acceptance. However, the vast majority of single-jaw transplant recipients demonstrate less-than-ideal skeletal and dental relationships, with suboptimal aesthetic harmony. The purpose of this study was to investigate reproducible cephalometric landmarks in a large-animal model, where refinement of computer-assisted planning, intraoperative navigational guidance, translational bone osteotomies, and comparative surgical techniques could be performed.

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Advances in microsurgical techniques and immunomodulatory protocols have contributed to the expansion of vascularized composite allotransplantation (VCA) with very encouraging immunological, functional, and cosmetic results. Rejection remains however a major hurdle that portends serious threats to recipients. Rejection features in VCA have been described in a number of studies, and an international consensus on the classification of rejection was established.

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Background: Sex-specific anthropometrics, skin texture/adnexae mismatch, and social apprehension have prevented cross-gender facial transplantation from evolving. However, the scarce donor pool and extreme waitlist times are currently suboptimal. Our objective was to (1) perform and assess cadaveric facial transplantation for each sex-mismatched scenario using virtual planning with cutting guide fabrication and (2) review the advantages/disadvantages of cross-gender facial transplantation.

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Facial allotransplantation is a clinical reality, proposed to provide improved functional and aesthetic outcomes to conventional methods of facial reconstruction. Multidisciplinary efforts are needed in addressing not just the surgical and immunological issues but the psychological and sociological aspects as well. In view of this, an international survey was designed and conducted to demonstrate that attitudes toward facial allotransplantation are highly influenced by cultural background.

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