Clinical Focus

  • Adult Reconstructive Orthopedic Surgery

Academic Appointments

Professional Education

  • Residency: Hospital of the University of Pennsylvania Orthopaedic Surgery Residency (2023) PA
  • Medical Education: Weill Cornell Medical College (2018) NY

All Publications

  • Why and What Happens to Patients Younger Than 60 Years Who Need Revision Total Knee Arthroplasty? The Journal of arthroplasty Perez, B., Koressel, J., Cohen, J. S., Kirchner, G. J., Kerbel, Y. E., Lee, G. C. 2023


    With the increasing number of young patients undergoing primary total knee arthroplasty (TKA), there will be an increase in the number of patients who require revision. While the results of TKA in younger patients are well known, there is little information regarding to the outcomes of revision TKA in this population. The purpose of this study was to evaluate the clinical outcomes in patients <60 years of age undergoing aseptic revision TKA.We retrospectively reviewed 433 patients undergoing aseptic revision TKA between 2008 and 2019. There were 189 patients <60 years compared to a group of 244 patients >60 years undergoing revision TKA for aseptic failures in terms of implant survivorships, complications, and clinical outcomes. Patients were followed for a mean of 48 months (range, 24 to 149).A total of 28 (14.8%) patients less than 60 years of age required repeat revision compared to 25 (10.2%) 60 years or older (odds ratio (OR) 1.94, 95% confidence interval (CI) 0.73-5.22, P = .187). There were no differences regarding postprocedural Patient-Reported Outcomes Measurement Information System (PROMIS) physical health scores (72.3 ± 13.7 versus 72.0 ± 12.0, P = .66) and PROMIS mental health scores (66.6 ± 17.4 versus 65.8. ± 14.7, P = .72), at an average of 32.9 and 30.7 months, respectively. Postoperative infection occurred in 3 (1.6%) patients <60 years of age, while 12 (4.9%) postoperative infections occurred in patients 60 years or older (OR 0.75, 95% CI 0.06-10.2, P = .83).There were no statistically significant differences in clinical outcomes between patients <60 versus > 60 years of age undergoing aseptic revision TKA.

    View details for DOI 10.1016/j.arth.2023.05.014

    View details for PubMedID 37196731

  • Wound complications following revision total knee arthroplasty: Prevalence and outcomes KNEE Koressel, J., Perez, B. A., Minutillo, G. T., Granruth, C. B., Mastrangelo, S., Lee, G. 2023; 42: 44-50


    Wound complications following revision TKA can be catastrophic and can compromise joint and even limb. The purpose of this study was to determine the prevalence of superficial wound complications requiring return to the OR in revision TKA, rates of subsequent deep infection, factors that increase the risk of superficial wound complications, and the outcomes of revision TKA following development of superficial wound complications.We retrospectively reviewed 585 consecutive TKA revisions with at least two years follow-up, including 399 aseptic revisions and 186 reimplantations. Superficial wound complications without deep infection requiring return to the OR within 120 days were compared to controls.Fourteen patients following revision TKA (2.4%) required return to the OR for a wound complication, including 7 of 399 (1.8%) patients who underwent aseptic revision TKA and 7 of 186 (3.8%) patients undergoing reimplantation TKA (p = 0.139). Aseptic revisions with wound complications were more likely to develop subsequent deep infection (HR 10.04, CI 2.24-45.03, p = 0.003), but this did not hold true for reimplantations (HR 1.17, CI 0.28-4.91, p = 0.829). Risk factors for wound complication included atrial fibrillation when all patients were combined (RR 3.98, CI 1.15-13.72, p = 0.029), connective tissue disease in the aseptic revision group (RR 7.1, CI 1.1-44.7, p = 0.037), and a history of depression in the re-implantation group (RR 5.8, CI 1.1-31.5, p = 0.042).

    View details for DOI 10.1016/j.knee.2023.02.011

    View details for Web of Science ID 000992693800001

    View details for PubMedID 36878112

  • Does a 2-Stage Debridement Result in Higher Rates of Implant Retention Compared With Single Debridement Alone? Perez, B. A., Koressel, J. E., Lopez, V., Barchick, S., Pirruccio, K., Lee, G. CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS. 2022: S669-S673


    We retrospectively reviewed 89 patients with acute prosthetic joint infection treated with debridement, antibiotics, and implant retention (DAIR) or 2-DAIR. Patients had <3 weeks of symptoms and met Musculoskeletal Infection Society criteria for infection. Sixty-three patients were treated with DAIR, whereas 26 patients were managed using a 2-DAIR protocol where patients underwent initial debridement, antibiotic bead placement, and subsequent return to the operating room at an average of 16.3 days for repeat debridement and modular component exchange. Patients received a 6-week course of intravenous antibiotics and 3 months of oral antibiotics for suppression. Demographics, comorbidities, implant retention rates, and complications were compared between the groups. The McPherson host type and infection type classification system were used to categorize patients in both the DAIR and 2-DAIR groups. Regression analysis was performed to control postoperative vs acute hematogenous infection, procedure, and comorbidities. The McPherson host types and infection types were not different between DAIR and 2-DAIR patients, P = .728 and P = .061, respectively.There was no difference in the overall implant retention rate between DAIR and 2-DAIR (63.49% vs 69.23%, P = .605). The average days to reinfection was significantly longer for the 2-DAIR cohort compared with DAIR (271.3 vs 165.3, P = .024) in patients who failed treatment. However, when controlling for infection, microorganism, index procedure, and comorbidities, there was no difference in days to reinfection (P = .679). There were no differences in complications, 90-day readmission, or revision rates between the groups.A staged debridement for acute prosthetic joint infection did not improve the rates of infection control. Randomized trials are needed to define indications and potential benefits of 2-DAIR.

    View details for DOI 10.1016/j.arth.2022.02.040

    View details for Web of Science ID 000807548000051

    View details for PubMedID 35189287

  • Profound Impact of Insurance Payor and Socioeconomic Status in Total Hip Arthroplasty Outcomes: Results From a High Volume Tertiary Care Center Koressel, J. E., Perez, B. A., DeAngelis, R. D., Kerbel, Y. E., Sheth, N. P., Nelson, C. L. CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS. 2022: S434-S438


    Dual eligible Medicare/Medicaid patients undergoing total hip arthroplasty (THA) have worse outcomes compared to other insurance payors. Prior literature fails to control for the heterogeneity of care provided amongst a large cohort of hospitals and surgeons as well as differences in patient populations treated. This study compares dual eligible THA patients and Medicaid and Medicare only THA patients at a single high volume tertiary center.We retrospectively reviewed patients who underwent THA for aseptic osteoarthritis of the hip over a three-year period with either Medicaid or Medicare insurance. 3,329 THA patients were included, of which 439 were Medicaid payor, 182 were dual eligible, and 2,708 were Medicare payor. Groups were compared using appropriate tests for direct comparisons and regression analysis.Dual eligible patients were less likely to be white and married, and were more likely to be current smokers and have COPD, liver disease, renal disease, and human immunodeficiency virus (HIV) compared to Medicare patients. These patients also had a lower age-adjusted Charleson Comorbidity Index when compared to Medicare patients (2.4 vs 3.4, P < .001). When controlling for smoking status, age, BMI and major medical comorbidities, dual eligible and Medicaid patients had increased length of stay (LOS) (0.58, 0.66 days, P < .001), higher risk of discharge to subacute rehabilitation (RR 1.97, 3.19, P < .001), and dual eligible patients more often returned to the ED within 90 days (RR 2.74, P < .001) compared to Medicare patients.This study supports the implementation of socioeconomic risk stratification efforts to properly evaluate value-based healthcare metrics in total hip arthroplasty patients.

    View details for DOI 10.1016/j.arth.2022.03.018

    View details for Web of Science ID 000807548000011

    View details for PubMedID 35278670

  • Does Dual-Eligible Medicare/Medicaid Insurance Status as a Surrogate for Socioeconomic Status Compromise Total Knee Arthroplasty Outcomes? Koressel, J. E., Perez, B. A., Kerbel, Y. E., DeAngelis, R. D., Israelite, C. L., Nelson, C. L. CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS. 2022: S32-S36


    Medicare/Medicaid dual-eligible patients who undergo primary total knee arthroplasty (TKA) demonstrate poor outcomes when compared to patients with other payers. We compare Medicare/Medicaid dual-eligible patients vs Medicare and Medicaid only patients at a single hospital center.All patients who underwent TKA for aseptic arthritis between August 9, 2016 and December 30, 2020 with either Medicare or Medicaid insurance were retrospectively reviewed. 4599 consecutive TKA (3749 Medicare, 286 Medicare/Medicaid dual eligibility, and 564 Medicaid) were included. Groups were compared using appropriate tests for direct comparisons and regression analysis.Patients with dual eligibility and Medicaid insurance were less likely to be white and married, more likely to be female and current smokers, and more likely to have COPD, mild liver disease, diabetes mellitus, malignancy, and HIV/AIDS, but had a lower age-adjusted Charleson Comorbidity Index when compared to Medicare patients. When controlling for smoking status and medical comorbidities, patients with dual eligibility and Medicaid insurance stayed in the hospital 0.64 and 0.39 additional days (P < .001), respectively, were more likely to be discharged to subacute rehab (RR 2.01, 1.49, P < .001) and acute rehab (RR 2.22, 2.46, P = .007, < .001), and were 2.14 and 1.73 times more likely to return to the ED within 90 days (P < .001) compared to Medicare patients.Value-based healthcare may disincentivize treating patients with low socioeconomic status, represented by Medicaid and dual-eligible insurance status, by their association with increased postoperative healthcare utilization, and less risky patients may be prioritized.

    View details for DOI 10.1016/j.arth.2022.01.014

    View details for Web of Science ID 000798210000007

    View details for PubMedID 35190241

  • Disruption of the Gut Microbiome Increases the Risk of Periprosthetic Joint Infection in Mice. Clinical orthopaedics and related research Hernandez, C. J., Yang, X., Ji, G., Niu, Y., Sethuraman, A. S., Koressel, J., Shirley, M., Fields, M. W., Chyou, S., Li, T. M., Luna, M., Callahan, R. L., Ross, F. P., Lu, T. T., Brito, I. L., Carli, A. V., Bostrom, M. P. 2019; 477 (11): 2588-2598


    Periprosthetic joint infection (PJI) is one of the most devastating complications of total joint arthroplasty. Given the mortality and morbidity associated with PJI and the challenges in treating it, there has been increased interest in risk factors that can be modified before surgery. In this study, we used a novel mouse model to consider the role of the gut microbiome as a risk factor for PJI.(1) Does the state of the gut microbiota before surgery influence the likelihood of developing an established infection in a mouse model of PJI? (2) How does the state of the gut microbiota before surgery influence the local and systemic response to the presence of an established infection in a mouse model of PJI?Male C57Bl/6 mice were divided into two groups: those with modified microbiome [INCREMENT]microbiome (n = 40) and untreated mice (n = 42). In [INCREMENT]microbiome mice, the gut flora were modified using oral neomycin and ampicillin from 4 weeks to 16 weeks of age. Mice received a titanium tibial implant to mimic a joint implant and a local inoculation of Staphylococcus aureus in the synovial space (10 colony forming units [CFUs]). The proportion of animals developing an established infection in each group was determined by CFU count. The local and systemic response to established infection was determined using CFU counts in surrounding joint tissues, analysis of gait, radiographs, body weight, serum markers of inflammation, and immune cell profiles and was compared with animals that received the inoculation but resisted infection.A greater proportion of animals with disrupted gut microbiota had infection (29 of 40 [73%]) than did untreated animals (21 of 42 [50%]; odds ratio, 2.63, 95% CI, 1.04-6.61; p = 0.035). The immune response to established infection in mice with altered microbiota was muted; serum amyloid A, a marker of systemic infection in mice, was greater than in mice with disrupted gut microbiota with infection (689 µg/dL; range, 68-2437 µg/dL, p < 0.05); infection associated increases in monocytes and neutrophils in the spleen and local lymph node in untreated mice but not were not observed in mice with disrupted gut microbiota.The findings from this in vivo mouse model suggest that the gut microbiota may influence susceptibility to PJI.These preclinical findings support the idea that the state of the gut microbiome before surgery may influence the development of PJI and justify further preclinical and clinical studies to develop appropriate microbiome-based interventions.

    View details for DOI 10.1097/CORR.0000000000000851

    View details for PubMedID 31283731

    View details for PubMedCentralID PMC6903863