Publications by authors named "Rajko Vucicevic"

Background And Objectives: Treatment of primary bone and soft tissue sarcomas typically includes complete surgical resection with or without adjunctive modalities. Despite best efforts, for the most challenging clinical scenarios such as axial or pelvic sarcoma, five-year survival rates are reported to be between 27 and 40 %. Since quality of resection is a key determinant of oncologic outcomes, it is critical to preoperatively plan the surgical approach to improve resection accuracy, ensure sufficient surgical margins, and reduce the risk of local or metastatic recurrence.

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  • Lumbar degenerative spondylolisthesis (LDS) is a condition involving spinal instability due to intervertebral disc degeneration and facet joint changes, leading to pain and potential surgery, but its causes are not well understood.
  • This study examined the relationship between gut microbiome dysbiosis (an imbalance of gut bacteria) and spine health in symptomatic patients with and without LDS by analyzing fecal samples.
  • Findings indicated that patients with LDS showed more severe disc degeneration, distinct gut microbiome structures, and a higher ratio of pro-inflammatory bacteria compared to those without LDS, suggesting a possible link between gut health and spinal conditions.
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  • Proximal femoral replacement (PFR) is a surgical technique used after tumor removal or failed hip replacements, but the risk of prosthetic instability is higher when there’s significant bone or soft tissue loss.
  • This study analyzed the outcomes of PFR among 106 patients over 15 years, categorizing them by the type of implant used: bipolar, constrained, or dual mobility.
  • Results showed that dual mobility implants had a longer time to dislocation and that smoking history and BMI differed among the groups, but all types had similar rates of early dislocation overall.
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Study Design: Retrospective study.

Objective: To determine whether there are significant differences in postoperative dysphagia when using table-mounted versus self-retaining retractor tools.

Summary Of Background Data: Retraction of prevertebral structures during anterior cervical spine surgery (ACSS) is commonly associated with postoperative dysphagia or dysphonia.

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  • Internal hemipelvectomy is a surgery used to remove tumors from the pelvic area without losing a limb, but it can be tricky due to the complex areas involved.
  • The study looked at patients who had this surgery and how well they did afterward, focusing on issues like complications and recovery.
  • Researchers also reviewed other studies to gather more information on patient outcomes after this type of surgery.
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Background: In clinical practice, internal fixation (IF) is a commonly utilized technique for metastatic bone disease (MBD) to the distal femur. Additionally, distal femoral reconstruction (DFR) has shown to be an effective surgical technique for primary tumors and MBD in the distal femur. The existing body of research comparing these methods has not focused on MBD or pathological fractures and thus does not guide surgical approach in the case of distal femoral MBD.

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Study Design: Case report and literature review.

Objective: To report the relatively rare complication of delayed infection after cervical disc arthroplasty (CDA).

Background: Delayed infection of the M6 device has been a rarely reported complication, with all cases described outside of the United States.

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Objective: Mental health disorders (MHDs) have been linked to worse postoperative outcomes after various surgical procedures. Past studies have also demonstrated a higher prevalence of dysphagia in both acute and community mental health settings. Dysphagia is among the most common complications following anterior cervical spine surgery (ACSS); however, current literature describing the association between an established diagnosis of an MHD and the rate of dysphagia after ACSS is sparse.

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Purpose: The following study aimed to determine the existence of blood biomarkers in symptomatic patients with or without lumbar Modic changes (MC).

Methods: A cross-sectional sub-analyses of a prospective cohort was performed. Fasting blood samples were collected from patients with and without lumbar MC who had undergone spinal fusion or microdiscectomy.

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Introduction: Lumbar facet cysts represent a potential source of nerve root compression in elderly patients. Isolated decompression without fusion has proven to be a reasonable treatment option in properly indicated patients. However, the risk of lumbar fusion after isolated decompression and facet cyst excision has yet to be elucidated.

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Background And Objectives: Wide margin resection for pelvic tumors via internal hemipelvectomy is among the most technically challenging procedures in orthopedic oncology. As such, surgeon experience and technique invariably affect patient outcomes. The aim of this clinical study was to assess how an individual surgeon's experiences and advancements in technology and techniques in the treatment of internal hemipelvectomy have impacted patient outcomes at our institution.

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Background: This study sought to quantify radiographic differences in psoas morphology, great vessel anatomy, and lumbar lordosis between supine and prone intraoperative positioning to optimize surgical planning and minimize the risk of neurovascular injury.

Methods: Measurements on supine magnetic resonance imaging and prone intraoperative computed tomography with O-arm from L2 to L5 levels included the anteroposterior and mediolateral proximity of the psoas, aorta, inferior vena cava (IVC), and anterior iliac vessels to the vertebral body. Psoas transverse and longitudinal diameters, psoas cross-sectional area, total lumbar lordosis, and segmental lordosis were assessed.

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