Study Design: Retrospective. Objective: Identify patient risk factors for extended length of stay (LOS) and 90-day hospital readmissions following elective anterior cervical discectomy and fusion (ACDF). Methods: Included ACDF patients from 2013 to 2017 at a single institution. Eligible patients were subset into LOS <2 and LOS ≥2 days, and no 90-day hospital readmission and yes 90-day hospital readmission. Patient and surgical factors were compared between the LOS and readmission groups. Multivariable logistic regression analysis was utilized to determine the association of independent factors with LOS and 90-day readmission rates. Results: Our sample included 1896 patients; 265 (14%) had LOS ≥2 days, and 121 (6.4%) had a readmission within 90 days of surgery. Patient and surgical factors associated with LOS included patient age ≥65 years (odds ratio [OR] 1.72, 95% confidence interval [CI] 1.15-2.56), marriage (OR 0.57, 95% CI 0.43-0.79), private health insurance (OR 0.28, 95% CI 0.15-0.50), American Society of Anesthesiologists (ASA) score (OR 1.52, 95% CI 1.12-1.86), African American race (OR 1.95, 95% CI 1.38-2.72), and harvesting iliac crest autograft (OR 4.94, 95% CI 2.31-10.8). Patient and surgical factors associated with 90-day hospital readmission included ASA score (OR 1.81, 95% CI 1.32-2.49), length of surgery (OR 1.002, 95% CI 1.001-1.004), and radiculopathy as indication for surgery (OR 0.60, 95% CI 0.39-0.96). Conclusions: Extended LOS and 90-day hospital readmissions may lead to poorer patient outcomes and increased episode of care costs. Our study identified patient and surgical factors associated with extended LOS and 90-day readmission rates. In general, preoperative patient factors affected these outcomes more than surgical factors.

Background: Relative value units (RVUs) are an essential component of reimbursement calculations from the Centers for Medicare & Medicaid Services. RVUs are calculated based on physician work, practice expense, and professional liability insurance. Procedures that are more complex, such as revision arthroplasty, require greater levels of physician work and should therefore be assigned a greater RVU. The purpose of this study is to compare RVUs assigned for primary and revision total elbow arthroplasty (TEA). Methods: The National Surgical Quality Improvement Program database was used to collect all primary and revision total elbow arthroplasties performed between January 2015 and December 2017. Variables collected included age at time of surgery, RVUs assigned for the procedure, and operative time. Results: A total of 359 cases (282 primary TEA, 77 revision TEA) were included in this study. Mean RVUs for primary TEA was 21.4 (2.0 standard deviation [SD]) vs. 24.4 (1.7 SD) for revision arthroplasty (P < .001). Mean operative time for primary TEA was 137.9 minutes (24.4 SD) vs. 185.5 minutes (99.7 SD) for revision TEA (P < .001). The RVU per minute for primary TEA was 0.16 and revision TEA was 0.13 (P < .001). This amounts to a yearly reimbursement difference of $71,024 in favor of primary TEA over revision TEA. Conclusion:The current reimbursement model does not adequately account for increased operative time, technical demand, and preand postoperative care associated with revision elbow arthroplasty compared with primary TEA. This leads to a financial advantage on performing primary TEA.

Background Anterior cruciate ligament (ACL) injury is extremely common among athletes. Rate of second ACL injury due to surgical graft rupture or contralateral limb ACL injury is approximately 15-32%. Psychological readiness to return to sport (RTS) may be an important predictor of successful RTS outcomes. Psychological readiness can be quantified using the ACL Return to Sport after Injury (ACL-RSI) questionnaire, with higher scores demonstrating greater psychological readiness. Purpose The purpose of this study was to investigate differences in functional performance and psychological readiness to return to sport among athletes who have undergone primary ACL reconstruction (ACLR). Study Design Descriptive cohort study Methods Eighteen athletes who had undergone primary ACLR were tested at time of RTS clearance. The cohort was divided into two groups, high score (HS) and low score (LS), based on median ACL-RSI score, and performance on static and dynamic postural stability testing, lower extremity isokinetic and isometric strength testing, and single leg hop testing was compared between the groups using an independent samples t-test. Results The median ACL-RSI score was 74.17. The average ACL-RSI score was 83.1±6.2 for the HS group and 61.8±8.0 for the LS group. High scorers on the ACL-RSI performed significantly better on isometric knee flexion as measured via handheld dynamometry (22.61% ±6.01 vs. 12.12% ±4.88, p=0.001) than the low score group. Conclusion The findings suggest that increased knee flexion strength may be important for psychological readiness to RTS after primary ACLR. Further research is indicated to explore this relationship, however, a continued emphasis on improving hamstring strength may be appropriate during rehabilitation following ACLR to positively impact psychological readiness for RTS. Level of Evidence III

Background Identifying areas of excess cost for shoulder arthroplasty patients can play a role in effective health care spending. The purpose of this study was to assess the utility of postoperative complete blood count (CBC) testing after total shoulder arthroplasty (TSA) and identify which patients benefit from routine CBC testing. Methods We performed a retrospective review of a cohort of patients who underwent primary TSA from January 2018 through January 2019. All patients in this cohort received tranexamic acid. Patient demographic characteristics and patient-specific risk factors such as American Society of Anesthesiologists score, Elixhauser index, body mass index, smoking status, and coagulopathy history were obtained. Perioperative values including length of surgery, preoperative and postoperative hemoglobin (Hgb) levels, and need for transfusion were also obtained. Results This study included 387 TSA patients in the final analysis. Comparison between the cohort requiring transfusion and the cohort undergoing no intervention revealed no statistically significant differences in age, sex, body mass index, American Society of Anesthesiologists score, or Elixhauser index. The group receiving transfusions was found to have significantly lower levels of preoperative Hgb (11.3 g/dL) and postoperative Hgb (8.1 g/dL) ( P < .0001). Additionally, the percentages of patients with abnormal preoperative Hgb levels (<12 g/dL) (72.3%) and postoperative day 1 Hgb levels < 9 g/dL (81.8%) were significantly higher in the group receiving transfusions ( P < .0001). A multivariate regression model identified an abnormal preoperative Hgb level (<12 g/dL), with an odds ratio of 3.8 (95% confidence interval, 1.5-6.2; P < .001), and postoperative day 1 Hgb level < 9 g/dL, with an odds ratio of 3.3 (95% confidence interval, 0.4-6.1; P < .03), as significant predictors of the risk of transfusion with a sensitivity of 64% and specificity of 96.2% with an area under the curve of 0.87. Conclusion Routine CBC testing may not be necessary for patients who receive tranexamic acid and have preoperative Hgb levels > 12 mg/dL and first postoperative Hgb levels > 9 mg/dL. This translates to potential health care cost savings and improves current evidence-based perioperative management in shoulder arthroplasty.