Dr. Hooper is a board-certified, fellowship-trained Orthopaedic surgeon specializing in hip and knee joint replacement surgery. She is a clinical assistant professor at Stanford University School of Medicine and heads the outpatient joint replacement program at the Stanford Outpatient Surgery Center in Redwood City.

A Bay Area native, Dr. Hooper attended college at UCLA, where she worked as a student athletic trainer for the football and women’s gymnastics teams. She went to medical school at the Michigan State University College of Human Medicine and was named a member of the Alpha Omega Alpha medical honor society. She completed Orthopedic residency training at the prestigious New York University Hospital for Joint Diseases in Manhattan. In residency, she mentored local female high school students interested in STEM as part of the Perry Initiative program, worked with local surgeons in Port-au-Prince, Haiti, and received excellent training in all facets of Orthopaedic surgery and patient care. She then completed a fellowship at Stanford University, where she obtained additional training in hip and knee joint replacement. She is motivated by the dramatic improvements in quality of life that patients experience after surgery and is passionate about helping her patients return to the activities that matter most to them. She began her practice at Kaiser Permanente, where she gained experience in safe and effective management of same-day total joint replacement patients.

Dr. Hooper performs a full range of Orthopaedic procedures to treat injures and conditions related to hip and knee degenerative conditions, such as arthritis, avascular necrosis, and post-traumatic injuries. Dr. Hooper will help her patients first explore nonsurgical treatments and may recommend surgery once activities of daily living have been significantly affected. She specializes in tissue-sparing surgical techniques, including anterior approach total hip replacement, and performs hundreds of hip and knee replacements annually. She believes that less muscle disruption enables an easier patient recovery. Dr. Hooper also uses robotic navigation during knee replacement surgery to optimize outcomes. She views each of her patients as individuals; she takes the time to understand their unique goals and adjust treatment plans accordingly.

Dr. Hooper has written articles and book chapters on a variety of topics related to techniques, technologies, and outcomes in joint replacement surgery. She has given presentations on her research at national meetings for the American Association of Hip and Knee Surgeons and American Academy of Orthopaedic Surgeons. She was also the recipient of the 2018 American Association of Hip and Knee Surgeons FARE grant for her work on the use of virtual reality as a teaching tool for residents learning total hip replacement.

Dr. Hooper is a member of the American Academy of Hip and Knee Surgeons, the American Academy of Orthopaedic Surgeons, and the Ruth Jackson Orthopaedic Society for female surgeons.

Clinical Focus

  • Total Joint Replacement
  • Outpatient Joint Replacement Surgery
  • Total Hip Replacement
  • Total Knee Replacement
  • Partial Knee Replacement
  • Revision, Joint
  • Adult Reconstructive Orthopedic Surgery

Academic Appointments

Professional Education

  • Board Certification: American Board of Orthopaedic Surgery, Orthopaedic Surgery (2022)
  • Fellowship: Stanford University Orthopaedics (2020) CA
  • Residency: NYU Langone Medical Center Orthopaedic Residency (2019) NY
  • Medical Education: Michigan State University College of Human Medicine Office of the Registrar (2014) MI

All Publications

  • Articulating vs Static Spacers for Native Knee Infection in the Setting of Degenerative Joint Disease. Arthroplasty today Hooper, J., Arora, P., Kappagoda, S., Huddleston, J. I., Goodman, S. B., Amanatullah, D. F. 2021; 8: 138–44


    Background: Patients with advanced knee arthritis who develop a septic joint are not adequately treated with irrigation and debridement and intravenous antibiotics because of antecedent cartilage damage. The gold standard treatment has been a 2-stage approach. The periprosthetic joint infection literature has demonstrated the superiority of articulating spacers, and metal-on-poly (MOP) spacers are being used with increasing frequency. The purpose of this study was to compare the postoperative outcomes of patients with infected, arthritic knees treated by a 2-stage approach to those of patients who received single-stage treatment with a MOP spacer.Methods: Sixteen patients with native knee septic arthritis treated with an antibiotic spacer between 1998 and 2019 were reviewed. Demographic data, clinical data, knee motion, Knee Society score, Timed-Up-and-Go, and pain scores were collected. Survivorship of final implants was compared.Results: Six of 16 knees (38%) received single-stage treatment, and 10 received 2-stage treatment (62%). Five of 6 MOP spacers (83%) were retained at a mean follow-up of 3 ± 1.2 years. Nine of 10 (90%) receiving static spacers had subsequent reconstruction, with 9 (100%) surviving at mean follow-up of 7 ± 3.2 years. The patients who received MOP spacers trended toward greater terminal flexion, higher Knee Society score, and faster Timed-Up-and-Go at final follow-up.Conclusion: Infection in a native, arthritic knee may be effectively treated using single-stage MOP spacer. Postoperative outcomes of single-stage MOP spacers compare favorably to staged static spacers and with those undergoing revision surgery for other indications. Longer follow-up is needed to evaluate durability of MOP spacers.

    View details for DOI 10.1016/j.artd.2021.01.009

    View details for PubMedID 33748374

  • Choroid structure analysis following initiation of hemodialysis by using swept-source optical coherence tomography in patients with and without diabetes. PloS one Nakano, H., Hasebe, H., Murakami, K., Cho, H., Kondo, D., Iino, N., Fukuchi, T. 2020; 15 (9): e0239072


    We aimed to evaluate choroid structural changes using swept-source optical coherence tomography (SS-OCT) following hemodialysis initiation in diabetic and nondiabetic patients with end-stage kidney disease (ESKD). In this multicenter, prospective, cross-sectional study, diabetic (DM group; 30 eyes; 16 patients) and nondiabetic patients (NDM group; 30 eyes; 15 patients) with ESKD were evaluated after hemodialysis initiation. SS-OCT findings were analyzed using a manual delineation technique and binarization method before the first and last hemodialysis sessions, conducted approximately 2 weeks apart. Subfoveal choroidal thickness changes and mean large choroidal vessel layer thickness were significantly greater in the DM group (-13.3% ± 2.5% and -14.5% ± 5.2%, respectively) than the NDM group (-9.5% ± 3.1% and -9.2% ± 3.4%, respectively; p = 0.049 and p = 0.02, respectively). Binarized SS-OCT analysis revealed that the mean subfoveal choroidal area was significantly larger in the DM group (-21.9% ± 6.5%) than the NDM group (-17.2% ± 5.9%; p = 0.032). The change ratio in mean luminal area values was significantly greater in the DM group (-27.7% ± 8.7%) than the NDM group (-17.7% ± 5.8%; p = 0.007). The DM group exhibited substantial changes in the choroidal layer, possibly reflecting choroidal vascular disorders caused by diabetes.

    View details for DOI 10.1371/journal.pone.0239072

    View details for PubMedID 32915894

    View details for PubMedCentralID PMC7485894

  • Ninety-day Postoperative Narcotic Use After Hospitalization for Orthopaedic Trauma. The Journal of the American Academy of Orthopaedic Surgeons Fisher, N., Hooper, J., Bess, S., Konda, S., Leucht, P., Egol, K. A. 2020; 28 (13): e560-e565


    The purpose of this study was to compare narcotic use in the 90-day postoperative period across orthopaedic trauma, spine, and adult reconstruction patients and examine whether patient-reported pain scores at discharge correlate with narcotic use during the 90-day postoperative period.Electronic medical record query was done between 2012 and 2015 using diagnosis-related groups for spine, adult reconstruction, and trauma procedures. Demographics, length of stay (LOS), visual analog scale pain scores during hospitalization, and narcotics prescribed in the 90-day postoperative period were collected. Multivariate analysis and linear regression were done.Five thousand thirty patients were analyzed. Spine patients had the longest LOS, highest mean pain during LOS, and were prescribed the most morphine in the 90-day postoperative period. Linear regression revealed that pain scores at discharge markedly influence the quantity of narcotics prescribed in the 90-day postoperative period.Patient-reported pain at hospital discharge was associated with increased narcotic use in the 90-day postoperative period.

    View details for DOI 10.5435/JAAOS-D-17-00825

    View details for PubMedID 31714420

  • The Role of the Hindfoot in Total Knee Arthroplasty Alignment. Bulletin of the Hospital for Joint Disease (2013) Hooper, J., Rozell, J., Walker, P. S., Schwarzkopf, R. 2020; 78 (1): 65-73


    Limb alignment is a critically important factor to consider in the management of the patient with knee arthritis. Abnormal alignment is associated with the accelerated progression of osteoarthritis and, if not addressed at the time of surgery, may contribute to early failure of knee replacement implants. The contribution of the hindfoot to overall limb alignment has received limited attention in the context of deformity correction in total knee arthroplasty (TKA). In this review, we present evidence supporting the inclusion of the hindfoot in the consideration of overall limb alignment for TKA and propose a management algorithm.

    View details for PubMedID 32144965

  • Female Pioneers in Orthopedic Surgery ORTHOPEDICS Lajam, C. M., Santiesteban, L., Hooper, J. 2020; 43 (2): 74

    View details for Web of Science ID 000520893400012

    View details for PubMedID 32168379

  • Virtual Reality Simulation Facilitates Resident Training in Total Hip Arthroplasty: A Randomized Controlled Trial. The Journal of arthroplasty Hooper, J., Tsiridis, E., Feng, J. E., Schwarzkopf, R., Waren, D., Long, W. J., Poultsides, L., Macaulay, W. 2019; 34 (10): 2278-2283


    No study has yet assessed the efficacy of virtual reality (VR) simulation for teaching orthopedic surgery residents. In this blinded, randomized, and controlled trial, we asked if the use of VR simulation improved postgraduate year (PGY)-1 orthopedic residents' performance in cadaver total hip arthroplasty and if the use of VR simulation had a preferentially beneficial effect on specific aspects of surgical skills or knowledge.Fourteen PGY-1 orthopedic residents completed a written pretest and a single cadaver total hip arthroplasty (THA) to establish baseline levels of knowledge and surgical ability before 7 were randomized to VR-THA simulation. All participants then completed a second cadaver THA and retook the test to assess for score improvements. The primary outcomes were improvement in test and cadaver THA scores.There was no significant difference in the improvement in test scores between the VR and control groups (P = .078). In multivariate regression analysis, the VR cohort demonstrated a significant improvement in overall cadaver THA scores (P = .048). The VR cohort demonstrated greater improvement in each specific score category compared with the control group, but this trend was only statistically significant for technical performance (P = .009).VR-simulation improves PGY-1 resident surgical skills but has no significant effect on medical knowledge. The most significant improvement was seen in technical skills. We anticipate that VR simulation will become an indispensable part of orthopedic surgical education, but further study is needed to determine how best to use VR simulation within a comprehensive curriculum.Level 1.

    View details for DOI 10.1016/j.arth.2019.04.002

    View details for PubMedID 31056442

  • Total joint arthroplasty in the public hospitals of Port-au-Prince, Haiti: our experience. Arthroplasty today Hooper, J., Israelski, R. H., Schwarzkopf, R. 2019; 5 (3): 376-379

    View details for DOI 10.1016/j.artd.2019.07.007

    View details for PubMedID 31516985

    View details for PubMedCentralID PMC6728598

  • What's Important: Women Trailblazers in Orthopaedics: Marian Frauenthal Sloane, MD-Ahead of Her Time. The Journal of bone and joint surgery. American volume Hooper, J. M., Santiesteban, L., Levin, A., Lajam, C. M. 2019; 101 (11): 1037-1038

    View details for DOI 10.2106/JBJS.19.00255

    View details for PubMedID 31169582

  • Low rates of renal injury in total joint arthroplasty patients without pre-existing renal disease. Arthroplasty today Hooper, J. M., Kester, B. S., Schwarzkopf, R. 2018; 4 (4): 457-458


    Acute kidney injury is a reported complication of total joint arthroplasty (TJA), with potentially severe long-term complications. Our study aimed to identify the rate of perioperative renal injury in patients without pre-existing renal dysfunction who undergo TJA. Using the American College of Surgeons National Surgical Quality Improvement Program database, we identified a mean annual rate of perioperative renal injury of 0.172% between 2009 and 2015. Factors most strongly associated with perioperative renal injury are age of 70 years or older, current smoking, history of diabetes mellitus, history of hypertension, and American Society of Anesthesiologists class of 3 or greater. There was no significant increase in the rate of renal injury from year to year. In patients without pre-existing renal disease, perioperative rates of acute kidney injury remain low in patients undergoing TJA.

    View details for DOI 10.1016/j.artd.2017.12.007

    View details for PubMedID 30560175

    View details for PubMedCentralID PMC6287231

  • Biomechanical Implications of an Oblique Knee Joint Line. The journal of knee surgery Hooper, J. M., Walker, P., Hsu, T. T., Kurtz, A., Reynolds, R., Hennessy, D., Chu, A. 2018; 31 (8): 761-766


    Surgical correction of multiapical deformities of the lower limb requires careful preoperative planning. Surgeons must account for the potential creation of secondary deformity, such as knee joint line obliquity, and the risks associated with accepting these changes in limb alignment. In this study, we evaluate the effect of knee joint obliquity on tibial plateau contact pressures and knee instability. Three cadaveric knees were dissected and put through biomechanical testing to simulate loading of an oblique knee joint. We observed < 1 mm femoral displacement (proxy measure of instability) between 15 degrees of varus tilt and 10 degrees of valgus tilt, and greater increases in tibial plateau contact pressures with valgus tilt than with varus tilt. Our results suggest that, if the creation of a secondary coronal plane deformity at the knee joint cannot be avoided, up to 15 degrees of varus or 10 degrees of valgus alignment can be tolerated by an otherwise structurally normal knee.

    View details for DOI 10.1055/s-0037-1608821

    View details for PubMedID 29183087

  • The Role of Bariatric Surgery in the Obese Total Joint Arthroplasty Patient. The Orthopedic clinics of North America Hooper, J. M., Deshmukh, A. J., Schwarzkopf, R. 2018; 49 (3): 297-306


    Although bariatric surgery is a proven means of weight loss and treatment of obesity-related comorbidities in morbidly obese patients, it is not yet clear how it affects outcomes after total joint arthroplasty in this high-risk patient population. This article explores the effects of obesity and bariatric surgery on osteoarthritis and total joint arthroplasty, and also discusses the financial and ethical implications of use of bariatric surgery for risk reduction before total joint arthroplasty.

    View details for DOI 10.1016/j.ocl.2018.02.003

    View details for PubMedID 29929711

  • Bariatric Surgery and Time to Total Joint Arthroplasty: Does It Affect Readmission and Complication Rates? Obesity surgery Schwarzkopf, R., Lavery, J. A., Hooper, J., Parikh, M., Gold, H. T. 2018; 28 (5): 1395-1401


    Bariatric surgery is frequently recommended prior to total joint arthroplasty (TJA) for morbidly obese patients with end-stage arthropathy. Current published data on the efficacy of bariatric surgery for preoperative medical optimization has yielded mixed results, and the effect of time from bariatric surgery to TJA on the preoperative risk profile is not well defined. Our study evaluated the effect of time from bariatric surgery to TJA on 90-day complication and readmission rates.We utilized the Healthcare Cost and Utilization Project (HCUP) California State Inpatient Database (SID) to identify patients who underwent TJA following bariatric surgery between 2007 and 2011. Primary endpoints were 90-day complication rates and all-cause 90-day readmission rates following TJA.We identified 330 cases of bariatric surgery followed by total hip arthroplasty (THA) and 1017 cases followed by total knee arthroplasty (TKA). There were no significant demographic differences among patients who underwent TJA greater than or less than 6 months after bariatric surgery. Patients undergoing THA more than 6 months after bariatric surgery were significantly less likely to be readmitted within 90 days for any cause. There was no association between time from bariatric surgery to THA or TKA and 90-day complications.Delaying THA at least 6 months after bariatric surgery may help reduce the rate of 90-day readmissions in this high-risk patient population. Arthroplasty surgeons recommending bariatric surgery as preoperative risk modification should consider the patient's overall nutritional status, medical comorbidities, and overall response to surgery prior to booking for TJA.

    View details for DOI 10.1007/s11695-017-3034-6

    View details for PubMedID 29168111

  • Outpatient Total Joint Arthroplasty. Current reviews in musculoskeletal medicine Bert, J. M., Hooper, J., Moen, S. 2017; 10 (4): 567-574


    Outpatient total joint arthroplasty (OTJA) allows for a safe, cost effective pathway for appropriately selected patients. With current pressures on arthroplasty surgeons and their associated institutions to reduce costs per episode of care, it is important to define the steps and challenges associated with establishing an outpatient arthroplasty program.Several studies have outlined techniques of selecting patients suitable for this type of postoperative pathway. With emerging concerns about patients who undergo outpatient arthroplasty being at increased risk of medical complications, which may lessen projected cost savings, it is important to identify value-based strategies to optimize patient recovery after OTJA. This article reviews digital techniques for patient selection and data collection, operating room efficiency systems, and provides a summary of methods to build and maintain value in outpatient total joint replacement within the framework of bundled payment reimbursement.

    View details for DOI 10.1007/s12178-017-9451-2

    View details for PubMedID 29064004

    View details for PubMedCentralID PMC5685972

  • Anterior Cruciate Ligament Injuries in Females: Risk Factors, Prevention, and Outcome. Bulletin of the Hospital for Joint Disease (2013) Gould, S., Hooper, J., Strauss, E. 2016; 74 (1): 46-51


    Anterior cruciate ligament (ACL) injuries are common among all participants in sports, occurring in approximately 1 in 3,000 individuals yearly in the USA. Epidemiological studies of ACL injuries have demonstrated that females are at higher risk for injury than males. When compared to male athletes participating in the same sports, the risk of ACL injury is two to eight times greater in females.1-3 A significant research effort has been directed at identifying risk factors that may predispose females to ACL injury. Female athletes likely have an increased incidence of ACL injury due to anatomic, hormonal, biomechanical, and neuromuscular differences between the sexes. Extrinsic factors may also play a role. As the number of girls and women participating in athletics continues to increase, understanding risk factors and developing prevention strategies will have profound physical, psychological, and financial implications for female athletes and the medical system.

    View details for PubMedID 26977548