Search

Introduction: Morbid obesity is a known risk-factor for increased complications following total hip arthroplasty (THA). Thus, many orthopaedic surgeons recommend bariatric surgery (BS). However, there is no consensus on the type (commonly either a Roux-en-Y gastric bypass [RYGB] or sleeve gastrectomy [SG]) and timing of BS prior to THA. Therefore, the purpose of this study is to compare BS recipients prior to THA to assess differences in 90-day to 2-year medical/surgical complications as well as revisions for: (1) type of BS (RYGB and SG); and (2) timing of BS. Additionally, we aim to assess risk factors for postoperative prosthetic joint infections (PJIs), dislocations, and revisions. Methods: We queried a national, all-payer database to identify patients undergoing primary THA from January 2010 to October 2020 (n = 715,100). Patients were then divided into 6 cohorts: 2 cohorts without history of BS (body mass index [BMI] kg/m2 20–35 [ n = 59,995]) and BMI > 40 [ n = 36,799]); 2 cohorts with previous RYGB (n = 1278) or SG (n = 1051); and 2 cohorts that underwent BS either 6–12 months (n = 412) and >12 months (n = 1655) prior to the THA. Bivariate chi-square analyses of medical and surgical outcomes at 90 days–2 years were conducted. Multivariate logistic regressions identified independent risk factors for PJIs, dislocations, and revisions. Results: At 90 days–2 years, no differences in postoperative medical/surgical complications or revisions were seen among timing or type of BS. The BMI > 40 kg/m2 cohort had the highest complication profile among all other cohorts. Timing and type of BS has similar odds of PJIs, dislocations, and revisions. Conclusions: Patients undergoing RYGB or SG 6–12 months and >1 year prior to THA showed similar complications profiles. These results suggest, bariatric patients do not need to wait 1 year before undergoing a THA. [ABSTRACT FROM AUTHOR]

Introduction: Over ⅓ of the population in the United State is obese (body mass index [BMI] >30 kg/m2), with an increasing proportion being morbidly obese (BMI >40 kg/m2). As the obesity rate climbs, an increasing number have entered the super-obese category (BMI >50 kg/m2), theoretically increasing risk for complications after total hip arthroplasty (THA). This study compared complications in non-obese, obese, morbidly obese, and super-obese patients undergoing THA. We specifically assessed: (1) 1- and 2-year peri-prosthetic joint infection (PJI) rates; (2) complication rates; as well as (3) 1- and 2-year revision rates. Methods: A database review identified patients undergoing primary THA from 01 January 2010 to 31 December 2019. Patients were stratified based on the presence of International Classification of Diseases, 9th and 10th revision diagnosis codes of non-obese (BMI <30 kg/m2) (n = 8680), obese (BMI <40 kg/m2) (n = 12,443), morbidly obese (BMI <50 kg/m2) (n = 5250), and super-obese (BMI >50 kg/m2) (n = 814) prior to THA. Complication rates at 90 days, 1 year, and 2 years were compared across groups. Results: At all time points, super-obese patients were associated with higher rates of PJI, even when compared to morbidly obese patients. Complications such as sepsis, venous thrombo-embolism, and revision surgeries were found in higher numbers in super-obese as well as morbidly obese patients, compared to obese and non-obese patients. Conclusions: This study provides large-scale analyses demonstrating the association between super-obese and morbidly obese patients and higher infection rates, as well as complications, following THA. Importantly, the association of PJI is highest among super-obese patients, even when compared to morbidly obese patients. Attaining a BMI <40 kg/m2 prior to surgery may be an important goal discussed with patients to lower the chance of postoperative infections. [ABSTRACT FROM AUTHOR]

Introduction: Periprosthetic joint infection (PJI) affects many revision total hip arthroplasty (THA) patients, contributing to a concomitant rise in revision costs. Means of decreasing the risk of PJI include the use of antibiotic adjuncts, such as calcium sulphate beads (CSBs). Mixed with antibiotics, the potential benefits of CSBs include dissolvability and antibiotic drug elution. However, information comparing them in aseptic revision is scarce. Therefore, this study investigated CSB utilisation for infection prevention in aseptic revision THA. Specifically, we compared (1) infection rates; (2) lengths of stay; (3) subsequent infection procedures; and (4) final surgical outcome in 1-stage aseptic revision THA patients who did received CSBs to 1-stage aseptic revision THA patients who did not. Methods: A retrospective chart review was performed to identify all patients who underwent an aseptic revision THA between January 2013 and December 2017. Patients who received CSBs (n = 48) were compared to non-CSB patients (n = 58) on the following outcomes: postoperative infections, lengths of stay (LOS), subsequent irrigation and debridements (I+Ds), and final surgical outcome, classified as successful THA reimplantation, retained antibiotic spacer, or Girdlestone procedure. Chi-square and t -testing were used to analyse the variables. Results: There was no significant differences found between CSB patients and non-CSB patients in postoperative infections (p = 0.082), LOS (p = 0.179), I+Ds (p = 0.068), and final surgical outcome (p = 0.211). Conclusion: This study did not find any statistical difference between CSBs and standard of care in infection rates and surgical outcomes. The advantage of these beads for 1-stage aseptic revisions is questionable. [ABSTRACT FROM AUTHOR]

Introduction: A new regional anaesthetic technique, coined the pericapsular nerve group (PENG) block, targets the anterior hip capsule by blocking the articular branches of the femoral nerve and accessory obturator nerve. In this study, we evaluated: (1) patient outcomes; (2) postoperative pain scores; and (3) postoperative opioid consumption in total hip arthroplasty (THA) patients who received a PENG block in comparison to a control group. Methods: A retrospective chart review was performed for patients who underwent primary THA and met criteria at a single institution (n = 48), with an additional cohort of patients collected as controls (n = 48). Postoperative pain scores were measured by obtaining the cumulative visual analogue scores (VAS) at 12-hour intervals until the 48-hour benchmark. All administered opioids were collected from postoperative day (POD) 0 to POD2 and converted to morphine milligram equivalents (MME). Results: In the PENG group, length of stay was significantly shorter (p < 0.001) and the initial postoperative distance walked was significantly farther (p = 0.001). The PENG group consistently demonstrated significantly lower mean cumulative pain scores until the 48-hour mark (p < 0.001 for all). Patients receiving the PENG block also experienced a significantly longer therapeutic window before requiring their first opioid (p < 0.002). The PENG group required significantly less opioid MMEs on POD1, POD2, and cumulatively over the entire stay (p < 0.022 for all). Conclusions: Our findings suggest that the PENG block has the potential of impacting THA recovery pathways and contributing to cost savings. Thus, its use further supports the transition to the outpatient setting and drives us towards achieving value-driven healthcare. [ABSTRACT FROM AUTHOR]