Orthopedics Commons^™

Uncemented Versus Cemented Humeral Fixation In Reverse Shoulder Arthroplasty For Proximal Humerus Fractures In The Elderly: A Multicenter Retrospective Cohort Study, Johnny Kasto, Thomas Ward Throckmorton, Tyler James Brolin, H Mike Kim, Curtis R. Noel, J Michael Wiater, Thomas W. Wright, Stephanie J. Muh

Conference Presentation Abstracts

INTRODUCTION: Among surgical interventions for proximal humerus fractures, RSA has been shown to have superior or noninferior outcomes to hemiarthroplasty or open reduction internal fixation. Cemented humeral fixation in RSA has been the traditional treatment method for proximal humerus fractures, however, there is a growing interest in uncemented humeral fixation. Both cemented and cementless RSA are currently used to treat proximal humerus fractures with few studies comparing postoperative outcomes of these 2 techniques. The aim of this study was to compare postoperative outcomes between cemented and uncemented humeral fixation following primary reverse total shoulder arthroplasty (RSA) for proximal humerus fractures. …

Forty-Eight-Month Clinical Outcomes Of Patients Over 60 Years Old In A Prospective, Controlled, Multicenter Study Evaluating Two-Level Cervical Disc Arthroplasty With A Peek-On-Ceramic Artificial Disc, Andrew Park, Richard Guyer, Pierce Nunley, Ashvin Patel, Jad Khalil, James Yue, Arman Khachatryan, K Brandon Strenge, Hyun Bae, Christopher Good, Rick Sasso

Conference Presentation Abstracts

Introduction: Cervical total disc replacement (cTDR) has gained acceptance as a treatment for symptomatic disc degeneration with symptoms of radiculopathy with/without myelopathy. While clinical outcomes of cTDR have consistently been reported to be similar or superior to those of cervical discectomy and fusion, there are limited reports addressing differences related to patient age. The purpose of this study was to compare the 4-year results of two-level PEEKon-ceramic cervical TDR for patients ≥60 years old to those < 60. Materials and Methods: Data were from the prospective Food and Drug Administration (FDA) Investigational Device Exemption (IDE) trial for the Simplify cervical disc. The study included 145 patients who completed 4-year follow-up, of which 124 were < 60 years old at the time of surgery and 21 were ≥60 years. All patients were treated for two-level cervical disc degeneration with radiculopathy and/or myelopathy. Clinical outcome was based on the Neck Disability Index (NDI), neck pain and arm pain intensity scores (10-point scale), and neurologic status. Radiographic measures included flexion/extension (F/E) range of motion (ROM), disc space height, heterotopic ossification, and adjacent-level degeneration based on Kellgren-Lawrence grading. Mean 48-month outcomes for patients ≥60 years old were compared to those of patients < 60. Radiographs were evaluated by an independent lab specializing in image assessment. Results: Of the outcomes reviewed, only one statistically significant difference was detected based on age group. The mean change in F/E ROM from baseline to 48 months at the inferior index level was 3.33° (< 60) and -0.19° (≥60) (p=0.01). At the superior index level, the difference was not significant (1.80° (< 60) vs. 0.12° (≥60); p=0.20). The difference in change in global ROM was also not significant (5.67° (< 60) vs. 0.77° (≥60); p=0.07). Statistically significant differences were not seen for the other outcomes assessed: mean change in NDI, mean change in neck pain, mean change in arm pain. Neurologic status was normal in 93.6% of the < 60 age group and 100.0% of the ≥60 group (p=0.24). The mean change in average disc height from baseline to 48 months was similar in both groups. The distribution of Kellgren-Lawrence grades (none, doubtful, minimal, moderate, and severe) was also similar for each age group for the level above and below the surgical levels (p=0.88 above, p=0.49 below) and the rate of radiographically relevant HO (grade 3 or 4) was comparable between age groups (superior level (p=0.49); inferior level (p=0.20)). Through latest follow-up, there were zero secondary surgical interventions in the ≥60 cohort and 9 in the < 60 cohort. Conclusion: This study found that patients ≥60 years of age who were treated with PEEK-on-ceramic TDR at two levels had comparable clinical and radiographic outcomes to patients < 60 years of age through 4-year follow-up. These results affirm that cervical TDR performs similarly in patients ≥60 versus those < 60, although the small sample size of patients ≥60 years of age is a limitation.

How Does 2 Level Cervical Disc Replacement Compare To Single Level?, Pierce Nunley, Brian Perry, Celeste Abjornson, Ashvin Patel, Faheem Sandhu, Armen Khachatryan, Jad Khalil

Conference Presentation Abstracts

Introduction: Anterior Cervical Discectomy and Fusion (ACDF) is highly successful at a single level with greater than 90% fusion rates and high patient satisfaction. However, multi-level ACDF surgery, though still successful, has diminishing results with increasing levels. With many Investigational Device Exemption (IDE) clinical trials for the treatment of Symptomatic Cervical Disc Disease (SCDD) at a single level and recent IDE clinical trials for two contiguous levels, these trials offer the opportunity to compare clinical outcomes utilizing the same motion sparing technology mechanisms of action (MOA). The hypothesis is that cervical total disc replacement (cTDR) maintains its clinical benefits from …

What Is The Difference Of A Decade Of Experience? Comparing Two Multi-Center, Prospective, Randomized Clinical Investigational Device Exemption Trials Of An Approved Tdr At Two Contiguous Levels Of The Cervical Spine, Ashvin Patel, Jad Khalil, Brian Perri, Celeste Abjornson, Feheem Sandhu, Armen Khachatryan, Pierce Nunley

Conference Presentation Abstracts

Introduction: In 2013, the first Investigational Device Exemption (IDE) clinical trial for the treatment of Symptomatic Cervical Disc Disease (SCDD) at two contiguous levels was approved for an unconstrained Total Disc Replacement (cTDR). A decade later, this same device was the control arm of a new IDE trial at 2 levels. Although different investigators, the objective of this analysis was to explore if a decade of knowledge demonstrated a significant improvement in patient outcomes compared to the original trial. Materials and Methods: Both studies were prospective, randomized, multi-center, controlled IDE clinical trials with similar inclusion/exclusion criteria and study designs. The …

Subclinical Presentation Of Cutibacterium Acnes Infection Following Revision Rotator Cuff Repair: A Case Report, Zachary Walker, David Shuster, David Sosnoski, Ali Hamade, Hussein Saad, Marc Milia

Posters

Cutibacterium acnes is a gram-positive anaerobic bacillus which is commonly found in the sebaceous glands of the skin generally in the axilla, chest and back regions 1,2.

Shoulder infections have been reported to occur at 3.4% following arthroscopic or open shoulder surgeries, where they are most commonly due to C. acnes3,4.

This case report demonstrates a unique case and management of a subclinical presentation of confirmed C. acnes infection.

Pseudoaneurysm Development After Short Cephalomedullary Femoral Nailing, Nicholas E. Runge, Daniel P. Mccall

Posters

Hip fractures are amongst the most treated conditions by orthopaedic surgeons1 and are routinely treated with cephalomedullary nails (CMN)s.

Pseudoaneurysm formation is a rare complication after femoral CMN. The primary cause of pseudoaneurysm formation in previous studies has been found to be related to overpenetration of the far cortex with a drill or screw.

Patients with neuromuscular diseases may have aberrant anatomy potentially leading to increased risk of pseudoaneurysm formation

This the first case report of a patient with post-polio syndrome who developed a symptomatic deep femoral artery pseudoaneurysm status post short CMN fixation for a basicervical femoral neck fracture …

Remove The Ring: A Quality Improvement Initiative For Upper Extremity Trauma, Brandon Wallace, Matthew Charlick, Josiah Valk, Aaron Seidman

Posters

Upper extremity trauma is a common injury and post traumatic edema is an expected sequela. Retained rings on the digits prohibit circumferential swelling and may lead to tourniquet syndrome if left in place leading to a devastating and avoidable consequence.

Expeditious ring removal in upper extremity trauma is prudent for patient safety.

Radiographs are typically obtained early in the triage and treatment of patients suffering from upper extremity trauma. This presented itself as as reliable efficient target to have rings removed prior to this treatment step.

An opportunity to make a systemic change to maximize patient safety and care was …

Two For One – Simultaneous Bilateral Shoulder Injuries In Gym Teacher: A Case Report, Zachary Walker, Josiah Valk, David Sosnoski, Kelley Brossy, Mohamed Saad

Posters

28M gym teacher history of T1DM, seizure d/o, and alcohol use disorder presents with bilateral shoulder pain after an inebriated fall, two nights prior. Not on antiepileptics at baseline. C/o bilateral shoulder pain and mid-thoracic spine pain.

Pyogenic Tenosynovitis Of Tibialis Anterior Tendon After Cat Bite, Daniel Blascak, David Sosnoski, Aaron Seidman

Posters

Pyogenic tenosynovitis is a bacterial infection of the synovial sheath that surrounds a tendon.

Commonly occurs within flexor tendons of the hand; theoretically can occur within any sheathed tendon.

Delayed diagnosis may lead to spread of infection to surrounding tissues and tendon rupture.

Tibialis anterior tendon is encased in a synovial sheath that runs from above the superior extensor retinaculum to the talonavicular joint.

Only five cases of pyogenic tenosynovitis of the tibialis anterior tendon have been reported in the literature.

None of the reported cases were due to animal bite injury.

The Impact Of External Beam Radiation Therapy (Xrt) On Shoulder Surgical Outcomes, Rami Beydoun

Conference Presentation Abstracts

Purpose: To assess whether prior history of breast cancer treated with XRT has an impact on outcomes following shoulder surgery Significance: Long-term effects of XRT on complications and outcomes following shoulder surgery are largely unknown. Methods: 20-year single institution retrospective chart review. Inclusion criteria: patients with history of breast cancer treated with XRT and a subsequent ipsilateral shoulder surgical procedure. Demographics, comorbidities, and postoperative outcomes including ROM and VAS pain scores were collected. Results: 18 female patients (average age 66.3 years) were identified. 10 underwent rotator cuff repair, 7 shoulder arthroplasty (3 reverse), and 1 arthroscopic labral repair. Four patients …

Comparing The Outcomes Of Titanium And Stainless Steel Flexible Nails In Repairing Pediatric Long Bone Fractures, Novelpreet Boparai, Suzan Kamel-Elsayed, Ehab Saleh

Posters

• Traditionally, pediatric femoral fracture treatment favored conservative methods.
• Surgical intervention was deferred until age 6, as non-operative approaches often resulted in complications.
• Titanium elastic nailing (TENS) emerged as an effective treatment for diaphyseal femoral fractures in ages 6 to 16. However, the choice between TENS and stainless steel elastic nailing (SSENS) remains debated due to inconsistent findings.

Public Perception Of Robotic Assisted Total Hip Replacement Surgery, Marvee Espiritu, James E. Feng, Phillip Vartanyan, Drew Moore, Robert Moore, Mark Karadsheh

Posters

• Robotic or technology assisted THA has received significant attention recently due to its precision in acetabular cup placement within the Lewinnek safe zone.1
• Few studies have assessed the public’s perception of robotic-assisted THA.3,4 Insight into patients’ perception of robotic-assisted THA may yield valuable information that may impact further integration of the technology within hospitals and surgeon training.

Morbidity Of Tendon Harvest Site For Acl Autograft; A Systematic Review, Jessi Fore, Betina Hinckel, Elijah Auch

Posters

Primary anterior cruciate ligament (ACL) ruptures are highly common and lead to a significant number of primary ACL reconstruction surgeries in the U.S.1. When choosing a graft, surgeons can pick between auto- and allografts2. An autograft can include a bone-patellar tendon-bone (BPTB) graft, a hamstrings tendon (HT) graft, or a quadriceps tendon (QT) graft2. Currently, there is a wide range of research on graft types, but no paper compares all threes graft types directly. This review will compare literature to determine the morbidity associated with each graft type and determine which autograft is best for primary reconstruction.

Metastatic Osteosarcoma Involving The Skin: A Systematic Review Of Patient Demographics, Clinical Characteristics, And Treatment Outcomes, Sarah Fried, Ameen Suhrawardy, Rafey Rehman, Malik Al-Jamal, Drew Moore, Darius Mehregan

Posters

Skeletal osteosarcomas - most common primary malignant bone tumor1 and commonly metastasize to:

• Lungs (95%)2 •

Other bones (50%)2 •

Kidneys (12%)2 •

Rarely to the skin3

Extraskeletal osteosarcomas (ESOS) – soft tissue tumors that may also metastasize to the skin4,5,6

Value in gathering data on this rare phenomenon:

• Informs biology and dermatologic care of patients suffering from this cancer.

This systematic review characterizes metastatic osteosarcomas involving the skin.

Assessing Patient Preferences For Technology-Assisted Versus Traditional Total Knee Arthroplasty Using A Validated Online Survey Marketplace: Before And After Patient Education, Tanner J. Hafen, James E. Feng, Phillip Vartanyan, Drew Moore, Robert Runner

Posters

• Computer (CA) and robotic (RA) assisted TKA has becoming increasingly prevalent in orthopaedic surgery1,2.
• There is limited insight into the public perception of CA and RA3.

Outcomes Of Primary Acl Repair For Proximal Tears: A Systematic Review And Meta Analysis, Collin Braithwaite, Tanner Hafen, Robert Dean, Joseph Guettler, James Bicos

Posters

The purpose of this study was to determine which primary ACL repair technique resulted in the lowest failure rates postoperatively.

Pediatric Upper Cervical Spine Trauma: A 10-Year Single Center Retrospective Study, Sazid Hasan, Muhammad Waheed, Shahrukh Naseer, Jad G. Khalil, Ehab S. Saleh

Posters

This study seeks to answer whether or not there is a significant association between mechanism of injury and patient age, and to elucidate any notable differences in overall outcomes based on various treatment modalities.

Quantifying The Importance Of Orthopaedic Surgeon Attributes By The Public, Rasheed Abdullah, James E. Feng, Phillip Vartanyan, Hassan Alosh, Drew Moore, Leonardo M. Cavinatto, Betina Hinckel

Posters

Evaluate what surgeon attributes are currently important to our patients, and what modalities may be most effective in finding orthopaedic surgeons, using online crowdsourcing.

Operative Versus Non-Operative Treatment Of Z-Type Clavicle Shaft Fracture In Adolescents: A Retrospective Study, Sami Azeroual, Colin Van Wagoner, Jeffrey Leider, Ehab Saleh

Posters

• The clavicle is one of the most fractured bones in the human body.
• Traditional treatment involves conservative management with a sling or immobilization but recently the effectiveness of the approach has been questioned.
• Studies done on the adult population have found higher rates of mal or non-union than previously noted, especially in those with displaced or comminuted fractures.
• The noted malunion or non-union was noted to have effects on shoulder mechanics, pain with overhead activity, and loss of strength and endurance.
• Due to differences in physiology the findings in the adult studies do not necessarily translate to the pediatric population. …

A Comparison Of Post-Operative Pain Management Following Lumbar Laminectomy Fusions Utilizing Tlip Or Intra-Operative Local Anesthesia Block, Lauren Eberhardt, Philip Zakko, Karen Childers, Daniel Park

Conference Presentation Abstracts

Background/Introduction: Spinal fusion patients suffer significant acute post-operative pain, potentially leading to chronic pain. Opioids are commonly used for peri-operative pain management despite significant side effects. The thoracolumbar interfascial plane (TLIP) and erector spinae plane (ESP) block, alternative analgesic options with rare side effects, have proven to reduce pain and opioid consumption compared to standard non-block care. This study aimed to determine if a significant difference exists between block groups with multi- and single level laminectomy fusions in post-operative and discharge opioid consumption and length of stay. Materials/Methods: A retrospective review was performed via data query for lumbar laminectomy fusion …

Neuraxial Vs. General Anesthesia In Total Hip Arthroplasty For Femoral Neck Fracture: A Comparison Of Postoperative Complications, Kevin X. Farley, Hassan Mouzailhem, Robert S. Dean, Mark Karadsheh, Leonardo Cavinatto, Jacob Wilson, Drew Moore

Conference Presentation Abstracts

OBJECTIVE: Rates of complications with differing anesthetic choices has not been directly compared for patients undergoing total hip arthroplasty (THA) for femoral neck fractures. This study sought to directly compare neuraxial vs. general anesthetic use and compare postoperative outcomes for patients undergoing THA for a femoral neck fracture. METHODS: From 2012-2021, the National Surgical Quality Improvement Project (NSQIP) database was used to identify all patients undergoing THA for a femoral neck fracture. Anesthetic type was identified and categorized as neuraxial (spinal, epidural) or general. Demographic and comorbid variables were collected. Days from admission to surgery was also identified. Postoperative complications …

New-Onset Depression Following Total Shoulder Arthroplasty: The Impact Of Preoperative Patient Factors And Postoperative Complications, Kevin X. Farley, Robert S. Dean, Eric R. Wagner, Michael B. Gottschalk, J Michael Wiater

Conference Presentation Abstracts

OBJECTIVE: Depression has been well studied as a risk factor for postoperative complications following total shoulder arthroplasty (TSA). However, little is known about new-onset depression (NOD) following TSA. The purpose of this study is to determine the incidence of NOD following TSA and identify risk factors for its occurrence. METHODS: This was a retrospective review of patients undergoing TSA in the Truven Health MarketScan database. NOD was identified. Patients with preoperative depression were excluded from analysis. Postoperative complications were identified, including the development of a prosthetic joint infection (PJI), need for revision surgery, and postoperative dislocation. If a complication occurred …

Trends And Outcomes Of Same-Day Discharge Total Ankle Arthroplasty In The United States: A National Analysis From 2012-2021, Kevin X. Farley, Robert S. Dean, Ricky Sareini, Elijah Auch, Zachary Vaupel, Paul T. Fortin

Conference Presentation Abstracts

OBJECTIVE: Same-day discharge Total Ankle Arthroplasty (TAA) is becoming more common. This study sought to report the percentage of patients within a national database that had a same-day discharge following TAA, and to compare the complication rates for patients that had same-day discharge to those that had a short hospital stay. METHODS: From 2012-2021, the National Surgical Quality Improvement Project (NSQIP) database was used to identify all patients undergoing TAA. All patients discharged to their home on the day of surgery were identified. A comparison cohort of patients with a hospital stay of 1 to 2 days who were then …

Risk Factors For Failure Of Same-Day Discharge Total Knee Arthroplasty, Kevin X. Farley, Robert S. Dean, Eli Auch, Mark Karadsheh, Drew Moore

Conference Presentation Abstracts

OBJECTIVE: Cemented total knee arthroplasty (TKA) is the gold standard treatment for osteoarthritis, but uncemented TKA offers benefits like improved osseointegration and reduced complications from cement debris. This study aimed to investigate (1) if there has been a rise in uncemented TKA and (2) if there are differences in early complications between cemented and uncemented TKA. METHODS: We retrospectively reviewed data from the Michigan Arthroplasty Registry Collaborative Quality Initiative (MARCQI) database of primary TKA patients from 2017 to 2021 at a single health system (six hospitals). Uncemented TKA (uncemented fixation for femur and tibia) patients were analyzed for demographics and …

National Incidence And Economic Burden Of Revision Shoulder Arthroplasty In The United States: Projections Through 2030, Kevin X. Farley, Robert S. Dean, Eric R. Wagner, Michael B. Gottschalk, J Michael Wiater

Conference Presentation Abstracts

PURPOSE: This study sought to use an all-payor inpatient claims database to investigate the incidence and national cumulative costs of revision shoulder arthroplasty in the United States, including those being performed for PJI. In addition, we also aimed to project the incidence and national economic impact of revision shoulder arthroplasty in the US through 2030. METHODS: The National Inpatient Sample (NIS) was used to estimate the annual number of revision shoulder arthroplasties performed between 2008 and 2019 using ICD procedure codes. Cumulative national costs were estimated. Septic revision shoulder arthroplasties were identified (i.e., cases being done for a prosthetic joint …

Uncemented Total Knee Arthroplasty Is On The Rise. A Retrospective Review From The Michigan Arthroplasty Registry Collaborative Quality Initiative (Marcqi), Michael E. Sacchetti, Sarah Fried, Madeleine Declercq, Jacob H. Keeley, Robert Runner

Conference Presentation Abstracts

OBJECTIVE: Cemented total knee arthroplasty (TKA) is the gold standard treatment for osteoarthritis, but uncemented TKA offers benefits like improved osseointegration and reduced complications from cement debris. This study aimed to investigate (1) if there has been a rise in uncemented TKA and (2) if there are differences in early complications between cemented and uncemented TKA. METHODS: We retrospectively reviewed data from the Michigan Arthroplasty Registry Collaborative Quality Initiative (MARCQI) database of primary TKA patients from 2017 to 2021 at a single health system (six hospitals). Uncemented TKA (uncemented fixation for femur and tibia) patients were analyzed for demographics and …

Patient Perception Of Allograft Versus Autograft In Anterior Cruciate Ligament Reconstruction Using A Valaidated Online Survey Marketplace, Tanner J. Hafen, Robert Dean, Collin Braithwaite, Joseph Guettler, Robert F. Laprade, James Bicos

Conference Presentation Abstracts

INTRODUCTION: Anterior cruciate ligament (ACL) reconstruction is the gold standard treatment for ACL tears. Reconstruction is accomplished through the use of an allograft or autograft. This study sought to evaluate the general population’s perception of the use of allografts and autografts in ACL reconstruction. METHODS: A prospective cohort study was performed utilizing a 35-question survey. Participants were paid, and the survey was distributed via a clinically validated, public, online marketplace in June 2023. After collecting baseline demographics, participants were queried on whether they held a preference for ACL reconstruction with an allograft or an autograft. All respondents then sequentially completed …

The Effect Of Marijuana On Postoperative Spine Patients' Emergency Room Visits, Readmission Rates, And Opioid Consumption, Vincent Buddle, James Feng, Maximillian Young-Kyu Lee, Ahyoung L. Park, Daniel K. Park

Conference Presentation Abstracts

INTRODUCTION: The social, political, and legal natural of marijuana has recently seen significant changes, particularly in favor of both medical and recreational use. Since being classified as a Schedule I substance in 1970 by the United States federal government, all but four states have legalized some form of its use. These changes have and will continue to lead to a significant number of orthopaedic patients using marijuana in the perioperative surgical setting. The objectives of this study are to 1) compare the 90-day rates of postoperative emergency department (ED) visits and 90-day readmission rates with patients whom tested positive for …

Effect Of Vitamin E Enhanced Highly Cross-Linked Polyethylene On Wear Rate And Particle Debris In Anatomic Total Shoulder Arthroplasty: A Biomechanical Comparison To Ultrahigh-Molecular-Weight Polyethylene, Adam Khan, Andrew Jawa, Matthew J. Smith, J Michael Wiater, Derek J. Cuff, Anand M. Murthi, Luke Stanford Austin

Conference Presentation Abstracts

INTRODUCTION: Particle-induced osteolysis resulting from polyethylene wear remains a source of implant failure in anatomic total shoulder designs. Modern polyethylene components are irradiated in an oxygen-free environment to induce polyethylene cross-linking, but an unfortunate byproduct of this process is free radical production. Melting or heat annealing is one method of reducing free radicals but can compromise the component’s mechanical properties. The antioxidant, Vitamin E, has been introduced as an alternative adjuvant to neutralize free radicals. Specifically, in anatomic shoulder arthroplasty with a ceramic head component, the vitamin E-enhanced polyethylene showed improved wear compared to the conventional highly-cross linked polyethylene. This …

Shoulder Arthroplasty Evolution: Comparing Reverse, Anatomic, And Hemiarthroplasty Trends And Outcomes In Key Demographics At A High-Volume Institution, James Fuchs Gannon, Mitchell Thomas Pfennig, Anthony Arveschoug, Betina Bremer Hinckel, J Michael Wiater, Leonardo M. Cavinatto

Conference Presentation Abstracts

The field of shoulder arthroplasty has changed markedly since the inception of the reverse total shoulder arthroplasty (RTSA) in 2004. With yearly gains of 32%, the RTSA now encompasses the largest portion of shoulder arthroplasty procedures. In contrast, the anatomic total shoulder arthroplasty (ATSA) and hemiarthroplasty (HA) have steadied or decreased in usage. Some have offered several explanations for these trends, such as expanding indications for the RTSA, in particular for pathologies traditionally treated with ATSA such as glenohumeral arthritis with an intact rotator cuff and no major bone loss/deformity. Others have cited superior postoperative outcomes of the RTSA over …