Ryan D. Freshman

ORCID: 0000-0001-8833-8046
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About
Contact & Profiles
Research Areas
  • Shoulder Injury and Treatment
  • Total Knee Arthroplasty Outcomes
  • Shoulder and Clavicle Injuries
  • Knee injuries and reconstruction techniques
  • Sports injuries and prevention
  • Spine and Intervertebral Disc Pathology
  • Anesthesia and Pain Management
  • Orthopedic Surgery and Rehabilitation
  • Peptidase Inhibition and Analysis
  • Protease and Inhibitor Mechanisms
  • Cardiac, Anesthesia and Surgical Outcomes
  • Hip disorders and treatments
  • Scoliosis diagnosis and treatment
  • Musculoskeletal pain and rehabilitation
  • Supramolecular Self-Assembly in Materials
  • Cardiovascular Syncope and Autonomic Disorders
  • Foot and Ankle Surgery
  • Nerve Injury and Rehabilitation
  • Diversity and Career in Medicine
  • Musculoskeletal synovial abnormalities and treatments
  • Surgical Sutures and Adhesives
  • Bone Metabolism and Diseases
  • Intramuscular injections and effects
  • Patient Satisfaction in Healthcare
  • Glycosylation and Glycoproteins Research

University of Southern California
2024-2025

University of California, San Francisco
2020-2024

Keck Hospital of USC
2024

Northwestern University
2016-2022

University of California San Francisco Medical Center
2022

University of Iowa Hospitals and Clinics
2022

University of the West
2022

Stryker (United States)
2018

Medtronic (United States)
2018

New York Proton Center
2017

Injuries are inherent to the sport of American football and often require operative management. Outcomes have been reported for certain surgical procedures in professional athletes National Football League (NFL), but there is little information comparing career effect these procedures.To catalog postoperative outcomes orthopaedic NFL compare respective prognoses effects on careers.Case series; Level evidence, 4.Athletes undergoing anterior cruciate ligament (ACL) tears, Achilles tendon...

10.1177/0363546516651426 article EN The American Journal of Sports Medicine 2016-06-17

Objective— Perivascular cells, including pericytes, macrophages, smooth muscle and other specialized cell types, like podocytes, participate in various aspects of vascular function. However, aside from the well-established roles cells contributions vascular-associated are poorly understood. Our goal was to ascertain function perivascular macrophages adult tissues under nonpathological conditions. Approach Results— We combined confocal microscopy, vivo depletion, vitro assays investigate...

10.1161/atvbaha.116.307592 article EN Arteriosclerosis Thrombosis and Vascular Biology 2016-09-16

Background: Excellent outcomes have been reported for anterior cruciate ligament (ACL) reconstruction (ACLR) in professional athletes a number of different sports. However, no study has directly compared these between Purpose: To determine if differences performance-based exist after ACLR each sport. Study Design: Cohort study; Level evidence, 3. Methods: National Football League (NFL), Basketball Association (NBA), Hockey (NHL), and Major Baseball (MLB) undergoing primary an acute rupture...

10.1177/0363546517704834 article EN The American Journal of Sports Medicine 2017-05-16

In recent years, the utilization of hip arthroscopy to treat femoroacetabular impingement syndrome (FAIS) has increased due its low complication rates, positive impact on patient-reported outcomes (PROs), and association with faster rehabilitation. Despite this, there are high rates revision conversion total arthroplasty (THA) in some these patients. It is unclear whether time from initial FAIS diagnosis surgery a risk factor for poor outcomes. this study, we examined relationship between...

10.1016/j.jor.2024.02.046 article EN cc-by Journal of Orthopaedics 2024-02-28

ObjectiveTo investigate whether insurance coverage criteria for meniscal allograft transplantation (MAT) are sufficiently supported in the policy documentation and these represent current research expert consensus on indications procedure.DesignThe top 11 United States (US)-based national commercial health payers MAT were identified. A Google search was performed to identify payer policies. Cited references within documents classified by type of reference reviewed level evidence (LOE)....

10.1177/19476035251329223 article EN cc-by-nc Cartilage 2025-03-28

Background: Representing approximately 10% of all meniscal tears, bucket-handle tears (BHMTs) are large longitudinal vertical that have an attached fragment flipped into the intercondylar notch. Meniscectomy often results in significant loss and increased joint loading. Alternatively, repair attempts to restore function meniscus aims preserve mechanics. Purpose: To evaluate long-term risk subsequent ipsilateral knee surgery patients who underwent a (BHMR), assess factors associated with...

10.1177/03635465221101136 article EN The American Journal of Sports Medicine 2022-06-01

Arthroscopic remplissage has continued to gain popularity as an adjunct Bankart repair for patients with anterior shoulder instability. Although the original technique was described over 15 years ago, our understanding of when and how use this procedure continues evolve. This article provides a review affects biomechanics, compares clinical outcomes between other procedures instability, discusses current indications remplissage. Current research focuses on across wide range glenoid bone...

10.1007/s12178-024-09900-3 article EN cc-by Current Reviews in Musculoskeletal Medicine 2024-05-20

Depression and related psychiatric diagnoses are common in patients undergoing hip arthroscopy for femoroacetabular impingement syndrome (FAIS). The effects of depression on postoperative complications, readmissions, additional ipsilateral surgery not well studied.Patients with preoperative who undergo FAIS would experience higher rates 90-day complications an increased risk procedures, as compared without depression.Cohort study; Level evidence, 3.A retrospective cohort study between 2010...

10.1177/23259671211036493 article EN cc-by-nc-nd Orthopaedic Journal of Sports Medicine 2021-09-01

Nonoperative and operative treatment modalities have been used for symptom management of adhesive capsulitis, but neither has shown to significantly alter the long-term natural history.The purpose was evaluate current trends in resource strategy utilization patients with capsulitis. It hypothesized that (1) idiopathic capsulitis will primarily undergo nonoperative (2) systemic medical comorbidities demonstrate relatively higher therapies.Cross-sectional study; Level evidence, 3.We searched...

10.1177/23259671211069577 article EN cc-by-nc-nd Orthopaedic Journal of Sports Medicine 2022-01-01

This is a retrospective case series.Define the anatomic variations and risk factors for such within operative corridor of transpsoas lateral interbody fusion.The fusion approach has recently been associated with devastating complications as injury to lumbosacral plexus, surrounding vasculature, bowel. A more comprehensive understanding structures in relation this using preoperative imaging would help surgeons identify high-risk patients potentially minimizing these complications.Age-sex...

10.1097/bsd.0000000000000760 article EN Clinical Spine Surgery A Spine Publication 2018-12-05

While inhibition of bone healing and increased rates pseudarthrosis are known adverse outcomes associated with cigarette smoking, the underlying mechanisms by which this occurs not well understood. Recent work has implicated Aryl Hydrocarbon Receptor (Ahr) as one mediator anti-osteogenic effects smoke (CS), contains numerous toxic ligands for Ahr. 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD, dioxin) is a high-affinity Ahr ligand frequently used to evaluate pathway activation. The purpose study...

10.1016/j.bonr.2017.02.003 article EN cc-by-nc-nd Bone Reports 2017-02-16

Evaluate performance-based outcomes and return-to-sport rate in National Hockey League (NHL) athletes.Retrospective cohort study.Public records. No direct patient care was provided.National athletes who underwent different orthopedic procedures were identified using public Three hundred thirty-seven met inclusion criteria.Common surgical NHL athletes.Return-to-play preoperative postoperative performance measures collected to calculate a position-specific score. Short-term medium-term defined...

10.1097/jsm.0000000000000696 article EN Clinical Journal of Sport Medicine 2018-11-15

Background: Humeral avulsion of the glenohumeral ligament (HAGL) lesions are an uncommon cause anterior instability and may occur in isolation or combination with other pathologies. As HAGL difficult to detect via magnetic resonance imaging (MRI) arthroscopy, they can remain unrecognized result continued instability. Purpose: To compare patients shoulder from a large multicenter cohort without diagnosis lesion identify preoperative physical examination findings, patient-reported outcomes,...

10.1177/23259671231206757 article EN cc-by-nc-nd Orthopaedic Journal of Sports Medicine 2023-10-01
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