Body Mass Index Does Not Predict Injury Pattern or Outcome After Motorcycle Crash.

INTRODUCTION: The obesity epidemic plagues the United States, affecting approximately 42% of the population. The relationship of obesity with injury severity and outcomes has been poorly studied among motorcycle collisions (MCC). This study aimed to compare injury severity, mortality, injury regions, and hospital and intensive care unit length of stay (LOS) between obese and normal-weight MCC patients. METHODS: Trauma registries from three Pennsylvania Level 1 trauma centers were queried for adult MCC patients (January 1, 2016, and December 31, 2020). Obesity was defined as adult patients with body mass index ≥ 30 kg/m2 and normal weight was defined as body mass index < 30 kg/m2 but > 18.5 kg/m2. Demographics and injury characteristics including injury severity score (ISS), abbreviated injury score, mortality, transfusions and LOS were compared. P ≤ 0.05 was considered significant. RESULTS: One thousand one hundred sixty-four patients met the inclusion criteria: 40% obese (n = 463) and 60% nonobese (n = 701). Comparison of ISS demonstrated no statistically significant difference between obese and normal-weight patients with median ISS (interquartile range) 9 (5-14) versus 9 (5-14), respectively (P = 0.29). Obese patients were older with median age 45 (32-55) y versus 38 (26-54) y, respectively (P < 0.01). Comorbidities were equally distributed among both groups except for the incidence of hypertension (30 versus 13.8%, P < 0.01) and diabetes (11 versus 4.4%, P < 0.01). There was no statistically significant difference in Trauma Injury Severity Score or abbreviated injury score. Hospital LOS, intensive care unit LOS, and 30-day mortality among both groups were similar. CONCLUSIONS: Obese patients experiencing MCC had no differences in distribution of injury, mortality, or injury severity, mortality, injury regions, and hospital compared to normal-weight adults. Our study differs from current data that obese motorcycle drivers may have different injury characteristics and increased LOS.

The Efficacy of Liposomal Bupivacaine in Regional Nerve Blocks for Below Knee Amputations.

Postamputation pain is highly prevalent. Opioids are often utilized postoperatively; however, they have significant side effects. Liposomal bupivacaine (LB) was introduced to extend nerve blocks from hours into days. Regional nerve blocks with LB for below knee amputation (BKA) is a novel approach which may reduce opioid use after surgery. A retrospective review was conducted for patients who had received LB nerve blocks compared to none for postoperative pain control in BKAs. Daily average opioid consumption was evaluated from the time in postoperative acute care unit until day of discharge in oral morphine equivalents (OME). 69 patients who underwent below knee amputations were reviewed. The mean average daily OME was lower in the LB group compared to control group(25.0 vs 50.5 OME, respectively; P = .002) A higher percentage of patients in the study group were categorized in the minimal opioid use when compared to the control group LB regional nerve blocks for the BKA population are considered a novel approach in pain control. Our exploratory study shows that patients who received LB nerve blocks may have decreased opioid consumption after surgery.

Intramedullary Nailing of Humerus Fractures Using an Implant System with Internal Distal Locking and Avoiding Distal Incisions: Operative and Clinical Outcomes.

There is limited evidence to guide implant selection for humeral shaft fractures. The objective of this study was to evaluate operative differences, early outcomes, and complications associated with use of an intramedullary nailing (IMN) system without distal interlock screws and compare this to a standard humeral nailing system. We evaluated 49 consecutive patients who underwent IMN for humeral shaft fracture between 2015-2018. Patients were grouped based on implant; Stryker T2 Nail (n = 37), or ODI Talon DistalFix (n = 12), which achieves distal interference with an endocortical barb mechanism. Operative time using the T2 nail was significantly longer than DistalFix nails (90 vs. 64 minutes, p < 0.05). With the numbers available, there was no significant difference in estimated blood loss for both systems (114 vs. 97 ml, respectively; p = 0.6). Neurologic complications occurred in eight versus one patient in the T2 and DistalFix cohort, respectively. These findings may support increased shifts to implant systems that bypass distal interlocking systems for cost savings and patient/surgeon safety. (Journal of Surgical Orthopaedic Advances 31(1):012-016, 2022).