PurposeThe extent to which concomitant COVID-19 infection increases short-term mortality following hip fracture is not fully understood. A systemic review and meta-analysis of COVID-19 positive hip fracture patients (CPHFPs) undergoing surgery was conducted to explore the association of COVID-19 with short-term mortality. Methods Review of the literature identified reports of short-term 30-day postoperative mortality in CPHFPs. For studies including a contemporary control group of COVID-19 negative patients, odds ratios of the association between COVID-19 infection and short-term mortality were calculated. Short-term mortality and the association between COVID-19 infection and short-term mortality were meta-analyzed and stratified by hospital screening type using random effects models. Results Seventeen reports were identified. The short-term mortality in CPHFPs was 34% (95% C.I., 30-39%). Short-term mortality differed slightly across studies that screened all patients, 30% (95% C.I., 22-39%), compared to studies that conditionally screened patients, 36% (95% C.I., 31-42%), (P = 0.22). The association between COVID-19 infection and short-term mortality produced an odds ratio of 7.16 (95% C.I., 4.99-10.27), and this was lower for studies that screened all patients, 4.08 (95% C.I., 2.31-7.22), compared to studies that conditionally screened patients, 8.32 (95% C.I., 5.68-12.18), (P = 0.04). Conclusion CPHFPs have a short-term mortality rate of 34%. The odds ratio of short-term mortality was significantly higher in studies that screened patients conditionally than in studies that screened all hip fracture patients. This suggests mortality prognostication should consider how COVID-19 infection was identified as asymptomatic patients may fare slightly better.

Traumatic injury is the leading cause of mortality in patients under 50. It is associated with a complex inflammatory response involving hormonal, immunologic, and metabolic mediators. The marked elevation of cytokines and inflammatory mediators subsequently correlates with the development of posttraumatic complications. The aim was to determine whether elevated cytokine levels provide a predictive value for orthopedic trauma patients. A prospective cohort study of patients with New Injury Severity Score (NISS) > 5 was undertaken. IL‐6, IL‐8, IL‐10, and migration inhibitory factor levels were measured within 24‐h of presentation. Demographic covariates and clinical outcomes were obtained from the medical records. Fifty‐eight patients (83% male, 40 years) were included. Addition of IL‐6 to baseline models significantly improved prediction of pulmonary complication (LR = 6.21, p = 0.01), ICU (change in R2 = 0.31, p < 0.01), and hospital length of stay (change in R2 = 0.16, p < 0.01). The addition of IL‐8 significantly improved the prediction of acute kidney injury (LR = 9.15, p < 0.01). The addition of postinjury IL‐6 level to baseline New Injury Severity Score model is better able to predict the occurrence of pulmonary complications as well as prolonged ICU and hospital length of stay.

Background: Recent studies have reported that targeting a center-center position at the distal tibia during intramedullary nailing (IMN) may result in malalignment. Although not fully understood, this observation suggests that the coronal anatomic center of the tibia may not correspond to the center of the distal tibia articular surface. Questions/Purposes: To identify the coronal anatomic axis of the distal tibia that corresponds to an ideal start site for IMN placement utilizing intact cadaveric tibiae. Methods: IMN placement was performed in 9 fresh frozen cadaveric tibiae. A guidewire was used to identify the ideal start site in the proximal tibia and an opening reamer allowed access to the canal. Each nail was then advanced without the use of a reaming rod until exiting the distal tibia plafond. Cadaveric and radiographic measurements were performed to determine the center of the nail exit site in the coronal plane. Results: Cadaveric and radiographic measurements identified the IMN exit site to correspond with the lateral 59.5% and 60.4% of the plafond, respectively. Conclusions: Tibial nails inserted using an ideal start site have an endpoint that corresponds roughly to the junction of the lateral and middle third of the plafond. Further studies are warranted to better understand the impact of IMN endpoint placement on the functional and radiographic outcomes of tibia shaft fractures.

No abstract

Category: Midfoot/Forefoot; Trauma Introduction/Purpose: The lack of data regarding functional outcomes of midfoot primary arthrodesis (PA) and open reduction and internal fixation (ORIF) contributes to significant debate regarding the optimal method of treatment for Lisfranc injuries. Although PA is associated with lower rates of secondary procedure and posttraumatic arthritis, its impact on foot functionality has come into question due to sacrifice of tarsometatarsal (TMT) mobility. The authors hypothesize that there is no significant difference between patient recorded outcome measures (PROMs) among patients receiving PA and ORIF for the treatment of Lisfranc injuries. Methods: A retrospective cohort study of patients surgically treated for Lisfranc injuries between January 2010 and January 2019 at a Level I trauma center was undertaken. Retrospective chart review was utilized to obtain patient demographics, comorbidities, procedural information, complications, and additional treatments. Responding by survey, patients reported their functional competency in performing daily and sports-related activities via the validated Foot and Ankle Ability Measure (FAAM) instrument. For each patient, scores for the Activities of Daily Living (ADL) and Sports sections were calculated. Patients also reported their perceived current level of function on a percent scale with respect to functionality prior to TMT injury. Results: Twenty-four patients underwent PA, and 27 patients underwent ORIF. There were no significant differences between age (P=0.55), incidence of high energy injury mechanisms (P=0.14), comorbidities, or time to surgical intervention from injury (P=0.25) among PA and ORIF groups. There were no significant differences in FAAM scores among PA and ORIF groups. The average ADL scores for PA (72.42 +- 17.53) and ORIF (68.11 +- 28.24) were not significantly different (P=0.52), nor were the average Sports scores for PA (47.92 +- 25.48) and ORIF (48.56 +- 29.44) groups (P=0.94). However, patients in the PA group reported a significantly higher level of perceived ADL function (77.96% +- 17.97%) compared to patients in the ORIF group (60.04% +- 35.47%, P=0.03); this was not the case for perceived Sports functionality (P=0.67). Conclusion: This analysis of PROMs revealed no significant difference in the ability to participate in ADLs and sports between PA and ORIF groups. These results align with our hypothesis and suggest that despite sacrificing TMT joint mobility, functional outcomes of patients receiving PA were not significantly different from those receiving ORIF for Lisfranc injuries.