Recent ucd_ome_posters_orthopaedic items

Knee Injection Internet Search Trends: Corticosteroids, Viscosupplementation,Platelet-Rich Plasma

Wed, 25 Jun 2025 00:00:00 +0000

Knee Injection Internet Search Trends: Corticosteroids, Viscosupplementation,Platelet-Rich Plasma

Can AI Match Clinicians?Assessing Inter-rater Reliability in Fracture Identification

Wed, 25 Jun 2025 00:00:00 +0000

Can AI Match Clinicians?Assessing Inter-rater Reliability in Fracture Identification

Evaluation of Surgical Approach on Reduction Quality for Transverse-FamilyAcetabulum Fractures

Wed, 25 Jun 2025 00:00:00 +0000

Evaluation of Surgical Approach on Reduction Quality for Transverse-FamilyAcetabulum Fractures

The use of contrast in CT staging of patients with extremity sarcoma: is it over utilized and unnecessary?

Mon, 18 Nov 2024 00:00:00 +0000

Background:

• Lungs are the most common site of metastasis for bone/soft tissue sarcoma.

• Regular lung metastasis staging studies are standard.

• American College of Radiology (ACR) recommends CT without contrast for staging since 2015.

Identified Quality Improvement Issue:

• At UC Davis there is a tendency to perform CT of the chest with contrast for routine staging.

• It is suspected that CTs ordered without contrast are replaced with contrast studies.

• The exact frequency of ordering CT of the chest with contrast is unknown.

Institutional Effect:

• There is unnecessary cost and procedure to both the patient and hospital.

Identification and Characterization of an Intra-Tumoral Microbiome in Soft Tissue Sarcomas

Mon, 4 Nov 2024 00:00:00 +0000

Immunotherapy is the “fourth pillar” of cancer treatment (Nobel Prize in 2018 by Drs. Allison and Honjo).

The gut microbiome has been shown to impact immunotherapy outcomes in cancer.

In human-to-mouse experiments involving fecal transplantation (FMT), the effect of the gut microbiome on immunotherapy outcomes was observed to be transferable.

Cancer patients who receive antibiotics prior to initiation of immunotherapy may have worse outcomes, which is hypothesized to be due to the negative impact of antibiotics on the gut microbiome.

Microbiota have also been identified in solid tumors of the pancreas and breast—organs that communicate with the outside world.

In a murine model of pancreatic cancer, the intra-tumoral microbiome was shown to promote inhibitory immune pathways, and antibiotic reversed this effect.

Objective Measurement of Adherence with Splint Use After Burn Injury

Mon, 4 Nov 2024 00:00:00 +0000

The prescription of splints (orthoses) to help protect vulnerable structures and maintain range of motion after skin grafting surgery is an integral part of burn recovery. The degree to which a patient adheres to wearing a prescribed orthosis is believed to play a major role in outcome. Oftentimes however, an orthosis is uncomfortable or undesirable to wear thus affecting a patient’s adherence. At our burn center, while the patient is in ICU, orthosis application and wear is heavily dependent on staff. During care on the acute ward, the responsibility is shared by family and staff. In outpatient (OP), the patient and caregiver are primarily responsible for orthotic wear adherence. The purpose of our study was to use temperature sensors to objectively determine patient adherence with splints during the three different stages of burn recovery.

Isolation,of,Binding,Site,of,BMP2,on,CBTerminal,Domain,of,COMP

Wed, 30 Oct 2024 00:00:00 +0000

The use of Bone Morphogenetic Protein clinically is supra-physiologic in concentration.

Bone Morphogenetic Protein 2 (BMP2) is used everyday in orthopaedic surgeries and bone autografts, but it is not used in normal biological amounts.

Clinical uses are 1 million times more than concentrations found physiologically.

Cartilage Oligomeric Matrix Protein (COMP) is known to bind proteins from the TGF superfamily and makes the presentation of BMP2 enhanced due to their binding interaction.

Periprosthetic Femur Fractures Outcomes and Fixation

Tue, 29 Oct 2024 00:00:00 +0000

Controversy exists in implant choice during surgical stabilization of periprosthetic femur fractures. We sought to determine if nail, plate, or combination of both would have an effect on union or nonunion, union time,or time to weight bear.

Outcomes for Metal Spacers in Treating Hind Foot Bony Defects

Mon, 28 Oct 2024 00:00:00 +0000

-The morbidity associated with large bony defects can be debilitating for patients and leaves few options for surgeons.

-Tantalum and 3-D metal spacers (Zimmer, Warsaw, IN) are a recent innovation for large bony defects, specifically for use in the hindfoot.

-Our purpose is to retrospectively review the surgical outcomes, union rates, and complications with patients who underwent metal spacer implantation.

Patient characteristics, injury types, and costs associated with over-triage of isolated cervical spine fractures

Tue, 22 Oct 2024 00:00:00 +0000

Approximately 5.7% of blunt traumas involve cervical spine (C-spine) injuries. While spine fractures are often stable and treated non-operatively, lack of access to spine specialty care results in transfer to tertiary care facilities, placing substantial financial burden on both hospitals and patients. Thus, identifying patient and injury characteristics associated with operative treatment of C-spine fractures may help reduce over-triage.

Clinical Manifestations of Constriction Band Syndrome

Mon, 21 Oct 2024 00:00:00 +0000

Constriction band syndrome (CBS) comprises a heterogenous collection of congenital anomalies that affect the extremities. Infants present with constriction bands causing skin indentations, limb amputations, and syndactyly. Due to the highly variable presentation, there are currently no clear diagnostic criteria. A standardized diagnostic criteria would help physicians distinguish CBS from other terminal deficiencies

Demographics, Fracture Characteristics, and Treatment Strategies of Periprosthetic Distal Femur Fractures Compared to Native Distal Femur Fractures

Mon, 21 Oct 2024 00:00:00 +0000

There is a lack of literature that provides clinical comparisons between periprosthetic distal femur fractures (PDFF) and native distal femur fractures (NDFF), as well as the populations affected. Objective: Analyze the demographics, fracture characteristics, and treatment strategies associated with periprosthetic distal femur fractures (PDFF) compared to native distal femur fractures (NDFF).

Comparing Fusion Rates Between Fresh-Frozen and Freeze-Dried Allografts in Anterior Cervical Discectomy and Fusion (ACDF)

Mon, 21 Oct 2024 00:00:00 +0000

ACDF is used to treat a variety of cervical pathologies (degenerative disease, myelopathy, etc.) Post-operative pseudarthrosis, nonunion, is defined as a failure of fusion between cervical levels. Pseudarthrosis is a leading cause of pain postoperatively resulting in 45%-56% of revision surgeries. The “gold standard” graft for ACDFs is an autograft from the patients iliac crest. Autografts lead to a higher level of fusion rates, however, can cause a number of donor site morbidities. To reduce these morbidities, allografts are frequently used as an alternative. • Allografts usually are freeze-dried or fresh-frozen. Freeze-dried allografts have gone through more processing which leads to a more sterile option, but can lead to a weaker bone graft. Fresh-frozen allografts go through less processing, leading to preserved structural integrity but increased chances on immune response.

Does the Area of Deprivation Index Predict Increased Rates of Unplanned Return to the Operating Room in Orthopaedic Trauma?

Mon, 21 Oct 2024 00:00:00 +0000

Socioeconomic status (SES) influences surgical outcomes across many surgical specialties. Much of the literature examining the relationship between SES and orthopaedic surgery outcomes is focused on joint arthroplasties. The following study is a new exploratory study using the Area of Deprivation Index (ADI) as a proxy for SES in orthopaedic trauma. The ADI includes 17 different metrics to assess disadvantages at the neighborhood level based on 9-digit zip codes.

Metaphyseal Clamshell Osteotomy for Long Bone Deformity

Mon, 21 Oct 2024 00:00:00 +0000

• Metaphyseal malunions and nonunions of the lower extremity pose a challenge in the setting of complex, multiplanar deformity and poor bone quality

• Optimal treatment corrects all parameters of deformity and provides stable fixation for early weight bearing and rehabilitation

• Current options for correction include single and double cut osteotomies stabilized with plate fixation, or gradual correction with fine wire circular fixation

• Both classic osteotomies and fine wire circular frames have significant limitations

• The clamshell osteotomy was developed to simplify the correction of tibial and femoral diaphyseal malunions and nonunions, but had not been studied for use in metaphyseal and meta-diaphyseal deformities.

The Perceived Importance of Same-Sex Mentors in Academic Medicine

Mon, 21 Oct 2024 00:00:00 +0000

As medicine diversifies, the importance of peer-based mentorship is often cited as the driving force behind inspiring women to enter surgical specialties. This driving force may be further influenced by the gender of the mentor, especially within male-dominated fields.

There has remained a paucity of female representation in Orthopedic Surgery. Despite the proportion of females in the 2019 US medical student graduation class increasing to 48%, Orthopedic Surgery retains the lowest percentage of female residents of all surgical specialties (15% in 2019).

This gender disparity can make it challenging for medical students and residents to find mentors/role models with whom they identify and from whom they can obtain the guidance to successfully navigate career choices and tackle potentially gender-nuanced situations.

Rank List Formation Among Orthopaedic Surgery Applicants and Program Directors During the COVID-19 Pandemic

Mon, 21 Oct 2024 00:00:00 +0000

The COVID-19 pandemic created unprecedented challenges for program directors (PDs) during the 2021 orthopaedic residency application season, requiring many alterations to the traditional application cycle and interview format. Away rotations were restricted, and in-person interviews were discouraged in accordance with the Association of American Medical Colleges (AAMC) and the American Orthopaedic Association Counsel of Orthopaedic Residency Directors (CORD). Programs mitigated the loss of these in-person encounters by conducting virtual rotations (VRs), informational sessions, and virtual interviews (VIs). Traditionally, applicants to orthopaedic residency programs are ranked primarily by United States Medical Licensing Examination (USMLE) Step 1 scores, Alpha Omega Alpha (AOA) status, third-year clerkship grades, research experiences, and letters of recommendation (LORs). Performance of applicants during in-person orthopaedic rotations has been especially important. PDs have...

Patient Reported Outcomes Measurement Information System (PROMIS) Scores for Children with Arthrogryposis Affecting the Upper Extremity

Wed, 16 Oct 2024 00:00:00 +0000

• Children with arthrogryposis involving the upper extremity (UE) commonly have impaired motion and strength due to contractures; however, they develop compensatory movements to achieve a higher level of function than may be anticipated1

• The World Health Organization (WHO) International Classification of Function – Children and Youth2 recommends evaluation of body structure & function, ability to perform activities and participate in life roles, and quality of life

• Clinicians typically evaluate body structure & function (strength & range of motion), but this does not necessarily characterize a child’s ability to perform activities and participate in life roles

• The Patient Reported Outcome Measurement System (PROMIS)3,4 is designed to measure all WHO domains for people with chronic disease

• PROMIS Pediatric Short Forms include 5-8 questions that measure Mobility, UE Function, Pain Interference with activities, and Peer Relationships...

Retrospective Comparison of Two Posterior Spinal Decompression Procedures for Cervical Spondylotic Myelopathy

Wed, 16 Oct 2024 00:00:00 +0000

Are laminoplasty and laminectomy & fusion equally effective treatments for CSM? Does laminoplasty lead to increased axial neck pain?

Retrospective Comparison of Two Posterior Spinal Decompression Procedures for Cervical Spondylotic Myelopathy

Wed, 16 Oct 2024 00:00:00 +0000

Are laminoplasty and laminectomy & fusion equally effective treatments for CSM? Does laminoplasty lead to increased axial neck pain?

Musculoskeletal Ultrasound For the Orthopedic Surgeon: Foot and Ankle

Wed, 16 Oct 2024 00:00:00 +0000

Ultrasound of the foot and ankle offers low cost, in-office real-time dynamic imaging without radiation. Given the complex and relatively smaller size of the many joints of the foot, ultrasound guidance can increase the accuracy of intra-articular aspirations and injections. Whether helping to establish a diagnosis, aid in nonoperative treatment or localize anatomy for postoperative pain control, ultrasound is an invaluable imaging technique for a foot and ankle surgeon.

Identifying Best Practices for Orthopaedic Treatment of Pediatric Gunshot Injuries: A Systematic Review

Thu, 29 Aug 2024 00:00:00 +0000

Firearm injuries in children are an increasing problem in the United States. Despite the broad literature on adult treatment, studies in the pediatric population are limited. This systematic review aims to identify evidence-based orthopaedic treatments for pediatric gunshot injuries.

Impact of Fragility Fracture Program on Osteoporosis Treatment

Thu, 29 Aug 2024 00:00:00 +0000

osteoporosis is a major public health issue, with more than 53 million people in the United States either having osteoporosis or at increased risk for developing osteoporosis.Several guidelines urge bone health evaluation and treatment for adults diagnosed with fragility fractures; however, two recentstudies from UC Davis Health have reported sub-optimal rates of DEXA evaluation, endocrinology referrals, and osteoporosismedication use. We sought to bridge the inpatient and outpatient osteoporosiscare gap by sending a detailed letter for primary care providers (PCP) summarizing osteoporosis treatment guidelines.

Therefore, the primary aim of this study was to determine the rates of change in osteoporosis evaluation and treatment in adultpatients after fragility fracture since implementation of this PCP letter system.

A Comparison of Prognostic Models to Facilitate Surgical Decision Making for Patients with Spinal Metastatic Disease

Thu, 29 Aug 2024 00:00:00 +0000

Survival prognosis in an important factor to consider when implementing surgical treatment for metastatic spine disease. Several scoring systems have been developed to help providers predict survival and determine which patients with metastatic spine disease are candidates for surgery.

Our primary aim was to determine predictors of 3-month, 6-month, and overall survivorship followingsurgery for metastatic spine disease.

Our secondary aim was to identify the scoringsystem which most accurately predicts the short-term life expectancy of patients undergoingsurgery for metastatic spine lesions.

Surgical restabilization following ACL rupture in mice slows the progression of post-traumatic osteoarthritis

Wed, 28 Aug 2024 00:00:00 +0000

Post-traumatic osteoarthritis (PTOA) occursfollowing an injury such as Anterior CruciateLigament (ACL) rupture. Clinically, ACLreconstruction surgery is performedfollowing injury. However, it is unclear howeffective knee restabilization is in slowingPTOA progression. This study hypothesized that knee restabilization would slow the progression of PTOA, but the procedure itself would have some mild PTOA-like joint degeneration.

Surgical Management of Degenerative Cervical Myelopathy: Comparing Outcomes Between Patients Admitted Through Clinic vs Emergency Department

Wed, 28 Aug 2024 00:00:00 +0000

Degenerative cervical myelopathy (DCM) canlead to pain, disability, and permanentneurological impairment. Here, we comparedpatients who were admitted through clinic versus the emergency department (ED) for surgical management of DCM.

Factors Associated With Increased Discharge Opioid Prescriptions Following Primary Anterior Cervical Spine Surgery