Andrea M. Spiker

ORCID: 0000-0003-1243-9726
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About
Contact & Profiles
Research Areas
  • Hip disorders and treatments
  • Orthopaedic implants and arthroplasty
  • Shoulder Injury and Treatment
  • Sports injuries and prevention
  • Musculoskeletal synovial abnormalities and treatments
  • Total Knee Arthroplasty Outcomes
  • Lower Extremity Biomechanics and Pathologies
  • Cardiac Valve Diseases and Treatments
  • Bone and Joint Diseases
  • Bone Tumor Diagnosis and Treatments
  • Hip and Femur Fractures
  • Shoulder and Clavicle Injuries
  • Sarcoma Diagnosis and Treatment
  • Knee injuries and reconstruction techniques
  • Orthopedic Surgery and Rehabilitation
  • Diversity and Career in Medicine
  • Orthopedic Infections and Treatments
  • Musculoskeletal Disorders and Rehabilitation
  • Bone fractures and treatments
  • Cardiac, Anesthesia and Surgical Outcomes
  • Pelvic and Acetabular Injuries
  • Tendon Structure and Treatment
  • Osteoarthritis Treatment and Mechanisms
  • Anesthesia and Pain Management
  • Foot and Ankle Surgery

Hospital for Special Surgery
2016-2025

University of Wisconsin–Madison
2017-2025

Mayo Clinic in Florida
2024

University of Iowa
2024

WinnMed
2024

University of Wisconsin Health
2017-2024

Twin Cities Orthopedics
2024

Froedtert Hospital
2023

Medical College of Wisconsin
2023

UW Health University Hospital
2022

Abstract Recently, our group used exosomes from mesenchymal stromal/stem cells (MSCs) to simulate an M2 macrophage phenotype, that is, exosome-educated macrophages (EEMs). These EEMs, when delivered in vivo, accelerated healing a mouse Achilles tendon injury model. For the current study, we first tested ability of EEMs reproduce beneficial effects different rodent model, rat medial collateral ligament (MCL) We hypothesized treatment with would reduce inflammation and accelerate healing,...

10.1002/stem.3291 article EN cc-by-nc-nd Stem Cells 2020-11-03

Orthopaedic surgery is the least diverse of all medical specialties, by both sex and race. Diversity among orthopaedic trainees lowest in medicine, growth percentage representation surgical subspecialties. Women comprise only 6% surgeons 16% trainees. This extreme lack diversity orthopaedics limits creative problem-solving potential our profession. encounter sexual harassment, overt discrimination, implicit bias, which create barriers to training, career satisfaction, success. are...

10.5435/jaaos-d-21-00932 article EN Journal of the American Academy of Orthopaedic Surgeons 2021-11-10

Background: Hip arthroscopy has become an effective method for treating several symptomatic disorders of the hip, which includes femoroacetabular impingement (FAI). Capsulotomy is often necessary visualization hip pathology; however, this presents multiple challenges in both capsular management intraoperatively and final capsule closure. Current techniques include use suspension sutures to provide adequate views central peripheral compartments. We present atraumatic technique that may be...

10.1177/26350254241291591 article EN cc-by-nc-nd Video Journal of Sports Medicine 2025-01-01

Abstract Background: Pericapsular scarring is one etiology of pain after hip arthroscopy for the treatment offemoroacetabular impingement (FAI). Hip manipulation under anesthesia (MUA) has been proposed as a potential treatment. MUA quick, outpatient procedure where patient sedated, and manipulated through various movements to break up pericapsular adhesions. The aim this study was determine efficacy in patients with post-hip FAI improving range motion (ROM), symptoms, function. Methods:...

10.1093/jhps/hnaf011.169 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: The optimal treatment of patients with symptomatic borderline acetabular dysplasia remains a major controversy in hip preservation. literature on focuses overlapping subgroups this population, yet the entire population to be better defined. purpose current study was define clinical presentation across full spectrum treatments arthroscopy and/or periacetabular osteotomy. Methods: A prospective multicenter cohort surgical performed. All undergoing primary pain setting...

10.1093/jhps/hnaf011.030 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: Nonunions of an osteotomy site are the most reported surgical complication following periacetabular (PAO) for treatment symptomatic acetabular dysplasia. Identification patient-specific risk factors nonunion remains ongoing area research. Objective: To identify associated with after PAO hip dysplasia at approximately one year postoperatively. Methods: We retrospectively identified 103 hips (94 patients) that underwent Bernese our institution between December 2017 and May...

10.1093/jhps/hnaf011.018 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: The optimal treatment of patients with symptomatic borderline acetabular dysplasia is a major controversy in hip preservation, as may have primary symptoms impingement or instability. Intraarticular pathologies driven by these processes differ and not been thoroughly investigated. purpose this study was to investigate differences intra-articular disease patterns between hips treated isolated arthroscopy (HS) compared combined HS periacetabular osteotomy (HS/PAO)....

10.1093/jhps/hnaf011.057 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: No standardized classification system exists for fatty infiltration of hip abductors, though preoperative correlates with postoperative outcomes in abductor tendon repairs. Objective: We aimed to create a simple, reliable, and reproducible MRI specific abductors examine the correlation between grades pathology. Methods: retrospectively identified 100 patients who underwent bony pelvic no infection, fracture, tumor, or prior history surgery. Using these images, gluteus...

10.1093/jhps/hnaf011.290 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: Hip dysplasia is characterized by joint instability and progression to osteoarthritis. The lateral center-edge angle (LCEA) a radiographic measure of acetabular coverage where <18 degrees diagnostic 18-25 indicates borderline dysplasia. Borderline hip difficult diagnosis for preservation surgeons because some patients have that requires periacetabular osteotomy (PAO) treatment, whereas other impingement can be treated with arthroscopy alone. No single standard...

10.1093/jhps/hnaf011.289 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: The role of generalized joint hypermobility (GJH) in the setting femoroacetabular impingement (FAI) and how it affects clinical presentation has begun to be investigated. It is possible that GJH hip instability are contributors symptoms this population. Elevated Beighton scores represent GJH. study purpose was investigate prevalence patients with symptomatic FAI correlate complaints pain, mobility, or stability. Methods: A prospective multicenter undergoing primary...

10.1093/jhps/hnaf011.363 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Introduction/Objective: Despite the complex three-dimensional anatomy involved with treating hip dysplasia a periacetabular osteotomy (PAO), there is no gold-standard method of pre-operative planning and intraoperative guidance for PAO. Thus, our objective was to demonstrate efficacy novel workflow PAO based on (1) accuracy post-operative lateral center edge angle (LCEA), (2) changes in operative time radiation dose. Methods: We prospectively planned 10 PAOs (8F, 35.5±5.7 years)...

10.1093/jhps/hnaf011.287 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: Hip arthroscopy is a rapidly expanding practice in orthopaedic surgery that most used to treat femoroacetabular impingement syndrome (FAIS) with associated labral tears. Studies of knee and total arthroplasty demonstrate the effectiveness neuraxial anesthesia an additional advantage decreased postoperative pain scores. The first direct comparison general for hip studied immediate period identified improved control without major adverse effects group. Objective: To...

10.1093/jhps/hnaf011.388 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: Femoroacetabular impingement (FAI) is a well-recognized cause of hip pain and secondary osteoarthritis. Symptom duration may play role in the severity intra-articular disease pathology clinical outcomes after surgical treatment but has not yet been fully evaluated. Hypothesis/Purpose: The purpose this study was to determine relationship between symptom (a) intraarticular at presentation (b) post-operative FAI surgery. Study Design: Prospective cohort study. Methods: A...

10.1093/jhps/hnaf011.324 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: Treatment of isolated osteochondral loss the femoral head in young, active patients presents a clinical challenge for orthopedic surgeons. Non-operative management is often associated with poor patient satisfaction and may lead to rapid development osteoarthritis. Additionally, hip arthroplasty young are concerns regarding implant longevity. The purpose this study was evaluate reported outcome measures (PROMs) following allograft (OCA) transplantation via surgical...

10.1093/jhps/hnaf011.045 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: We previously published multi-centered studies about FAI to understand pathophysiology and outcomes. Now, we will compare the contemporary historical cohorts similarities differences. Baseline demographic, imaging, surgical data be presented. Methods: This is a multi-institutional cohort that underwent arthroscopy for FAI. Enrollment was between 2020 2022. Patients aged 14-45 years were included. Exclusion criteria previous ipsilateral hip procedures, associated...

10.1093/jhps/hnaf011.362 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

Abstract Background: Resilience, quantified by the brief resilience scale (BRS), has been recognized for its role in pain and symptomatology musculoskeletal conditions. The of psychological factors clinical presentation outcomes FAI surgery continues to be poorly understood. Methods: This is a prospective multicenter study patients undergoing primary hip arthroscopy. PROMs were administered at baseline, 3-, 6-months post-op included Patient Reported Outcomes Measurement Information System...

10.1093/jhps/hnaf011.097 article EN cc-by-nc Journal of Hip Preservation Surgery 2025-03-01

10.1016/j.jposna.2025.100189 article EN cc-by-nc-nd Journal of the Pediatric Orthopaedic Society of North America 2025-04-01

Background Women are underrepresented in the field of orthopaedics, and growth proportion women is lagging behind all other medical specialties. Improvement begins with recruiting more residents; however, few data exist regarding factors that may attract applicants to orthopaedic training programs. Questions/purposes In 2020 2023 match cycles: (1) Was there a relationship between percentage who matched into residency programs residents or faculty given program? (2) What program attributes...

10.1097/corr.0000000000003464 article EN Clinical Orthopaedics and Related Research 2025-04-08

In patients with femoroacetabular impingement (FAI), mental health has been implicated in both symptom severity and postoperative outcomes. However, there are limited data regarding the independent influences of baseline hip pathology on patient-reported outcomes over time after arthroscopy.

10.1177/03635465241252821 article EN The American Journal of Sports Medicine 2024-05-21

Background: Although sliding occurs frequently in professional baseball, little is known about the epidemiology and effect of injuries that occur during this population elite athletes. Purpose: To describe incidence characteristics injuries, determine their terms time out play, identify common injury patterns may represent appropriate targets for prevention programs future. Study Design: Descriptive epidemiologic study. Methods: All offensive occurring Major League Baseball (MLB) Minor...

10.1177/0363546517704835 article EN The American Journal of Sports Medicine 2017-05-12

Introduction: The relationship of hip range motion (ROM) to shoulder, elbow, abdominal, and back injuries remains undefined. Methods: We assessed ROM on players reporting Major League Spring Training for an organization over six seasons (2010 2015). Hip was correlated with player back, elbow injury status those using multivariate binomial logistic regression analysis. Results: A total 258 player-seasons (129 pitchers 129 position players) resulted in 20 35 abdominal across all 28 25 shoulder...

10.5435/jaaos-d-17-00223 article EN Journal of the American Academy of Orthopaedic Surgeons 2018-03-15
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