Skeletal Traction for Isolated Femur Fractures Does Not Reduce Opioid Consumption.

OBJECTIVES: Isolated femoral shaft fractures can be treated preoperatively with skeletal traction (TXN) or maintenance of a position of comfort (COMF). The goal of this retrospective review was to determine whether preoperative opioid consumption differs significantly between these forms of treatment. DESIGN: Case-control retrospective study. SETTING: Two academic Level 1 trauma centers. PATIENT SELECTION CRITERIA: Patients presenting to the emergency department with isolated OTA/AO 32A-C femoral shaft fractures from 2017 to 2020. OUTCOME MEASURES AND COMPARISONS: The primary outcome was preoperative opioid consumption (morphine milligram equivalents) comparing patients treated with application of TXN or placed in a position of COMF. RESULTS: Two hundred and twenty patients were studied (COMF n = 167, TXN n = 53). Multivariate regression analysis revealed significantly greater preoperative opioid consumption in the emergency department for the TXN group compared with COMF (2.6 more morphine milligram equivalents [confidence interval, 0.23-4.96], P = 0.031). There was no difference in preoperative opioid consumption between groups on the hospital floor ( P = 0.811) nor during the entire preoperative course ( P = 0.486). The total preoperative rate of opioid consumption (morphine milligram equivalents/hour) did not differ ( P = 0.825). CONCLUSIONS: Patients with isolated femoral shaft fractures treated preoperatively with skeletal traction consumed more opioids in the emergency department compared with patients treated in a position of comfort, but no difference in opioid consumption was observed between groups for the entire preoperative course. A position of comfort may be considered as an acceptable alternative to skeletal traction for patients with isolated femur fractures. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Hip Fracture Repair by the Post-Call Surgeon: A Multicenter Retrospective Review.

INTRODUCTION: The purpose of this study was to evaluate surgeons' ability to perform or supervise a standard operation with agreed-upon radiologic parameters after being on call. METHODS: We reviewed a consecutive series of patients with intertrochanteric hip fractures treated with a fixed angle device at 9 centers and compared corrected tip-apex distance and reduction quality for post-call surgeons versus those who were not. Subgroup analyses included surgeons who operated the night before versus not and attending-only versus resident involved cases. Secondary outcomes included union and perioperative complications. RESULTS: One thousand seven hundred fourteen patients were of average age 77 years. Post-call surgeons treated 823 patients and control surgeons treated 891. Surgical corrected tip-apex distance did not differ between groups: on-call 18 mm versus control 18 mm (P = 0.59). The Garden indices were 160° on the AP and 179° on the lateral in both groups. In 66 cases performed by surgeons who operated the night before, the TAD was 17 mm. No difference was noted in corrected tip-apex distance with and without resident involvement (P = 0.101). No difference was observed in pooled fracture-related complications (P = 0.23). CONCLUSION: Post-call surgeons demonstrated no difference in quality and no increase in complications when performing hip fracture repair the next day compared with surgeons who were not on call.

Tranexamic Acid and Holding Venous Thromboembolism Prophylaxis Morning of Surgery Do Not Decrease Transfusion Requirements in Patients Undergoing Anterior Intrapelvic Approach for Acetabular Open Reduction and Internal Fixation.

INTRODUCTION: The objective of this study was to determine factors that may affect transfusion rates for patients requiring an anterior intrapelvic (AIP) approach for an acetabulum fracture. METHODS: This was a multicenter retrospective comparison study (3 trauma centers at two urban academic centers). Patients who had an AIP approach for an acetabulum fracture without other notable same-day procedures (irrigation and débridement and/or external fixation were only other allowed procedures) were included. One hundred ninety-five adult (18 and older) patients had adequate records to complete analysis with no preexisting coagulopathy. The main outcome evaluated was the number of units transfused at the time of surgery and up to 7 days after surgery. RESULTS: Factors that were found to affect intraoperative transfusion rates were older age, lower preoperative hematocrit, longer surgery duration, and requiring increased intraoperative intravenous fluids. Factors that did not affect transfusion rate included sex, body mass index, hip dislocation at the time of injury, fracture pattern, AIP approach alone or with lateral window ± distal extension, Injury Severity Score, preoperative platelet count, use of tranexamic acid, and venous thromboembolism prophylaxis received morning of surgery. When followed out through the remainder of a week after surgery, the results for any factor did not change. DISCUSSION: In this large multicenter retrospective study of patients requiring an AIP approach, tranexamic acid and use of venous thromboembolism prophylaxis (or holding it the morning of surgery) did not affect transfusion rates either during surgery or up to a week after surgery. Older age, lower preoperative hematocrit level, longer surgery time, and increased intraoperative intravenous fluids were associated with higher transfusion rates. DATA AVAILABILITY AND TRIAL REGISTRATION NUMBERS: Data are available on request. LEVEL OF EVIDENCE: Level 3, retrospective case-control study.

Early Results of Orthopaedic Trauma and Anemia: Conservative Versus Liberal Transfusion Strategy.

INTRODUCTION: The purpose of this study was to determine whether it is safe to use a conservative packed red blood cell transfusion hemoglobin threshold (5.5 g/dL) compared with a liberal transfusion threshold (7.0 g/dL) for asymptomatic patients with musculoskeletal-injured trauma out of the initial resuscitative period. METHODS: This was a multicenter, prospective, nonblinded, randomized study done at three level 1 trauma centers. One hundred patients were enrolled. One patient was inappropriately enrolled, withdrawn from the study, and excluded from analysis leaving 99 patients (49 liberal and 50 conservative) with 30-day follow-up. After initial resuscitation, patients were enrolled and randomized to either a liberal or a conservative transfusion strategy. This strategy was followed throughout the index hospitalization. The primary outcome of the study was infection. Superficial infection was defined as clinical diagnosis of cellulitis or other superficial infection treated with oral antibiotics only. Deep infection was defined as clinical diagnosis of fracture-related infection requiring IV antibiotics and/or surgical débridement. RESULTS: Ninety-nine patients were successfully followed for 30 days with 100% follow-up during this time. Seven infections (14%) occurred in the liberal group and none in the conservative group ( P < 0.01). Five deep infections (10%) occurred in the liberal group and none in the conservative group ( P = 0.03). Three superficial infections (6%) occurred in the liberal and none in the conservative group, which was not a significant difference ( P = 0.1). No difference was observed in length of stay between groups. DISCUSSION: Transfusing young healthy asymptomatic patients with orthopaedic trauma for hemoglobin <7.0 g/dL increases the risk of infection. No increased risk of anemia-related complications was identified with a conservative transfusion threshold of 5.5 g/dL. DATA AVAILABILITY AND TRIAL REGISTRATION NUMBERS: Data are available on request. IRB protocol number is 1402557771. This study was registered with Clinicaltrials.gov identifier NCT02972593. LEVEL OF EVIDENCE: Level 2, unblinded prospective randomized multicenter study.

Orthopaedic Trauma and Anemia: Conservative versus Liberal Transfusion Strategy: A Prospective Randomized Study.

OBJECTIVES: To determine whether it is safe to use a conservative packed red blood cell transfusion hemoglobin (Hgb) threshold (5.5 g/dL) compared with a liberal transfusion threshold (7.0 g/dL) for asymptomatic musculoskeletal injured trauma patients who are no longer in the initial resuscitative period. METHODS: Design: Prospective, randomized, multicenter trial. SETTING: Three level 1 trauma centers. PATIENT SELECTION CRITERIA: Patients aged 18-50 with an associated musculoskeletal injury with Hgb less than 9 g/dL or expected drop below 9 g/dL with planned surgery who were stable and no longer being actively resuscitated were randomized once their Hgb dropped below 7 g/dL to a conservative transfusion threshold of 5.5 g/dL versus a liberal threshold of 7.0 g/dL. OUTCOME MEASURES AND COMPARISONS: Postoperative infection, other post-operative complications and Musculoskeletal Functional Assessment scores obtained at baseline, 6 months, and 1 year were compared for liberal and conservative transfusion thresholds. RESULTS: Sixty-five patients completed 1 year follow-up. There was a significant association between a liberal transfusion strategy and higher rate of infection (P = 0.01), with no difference in functional outcomes at 6 months or 1 year. This study was adequately powered at 92% to detect a difference in superficial infection (7% for liberal group, 0% for conservative, P < 0.01) but underpowered to detect a difference for deep infection (14% for liberal group, 6% for conservative group, P = 0.2). CONCLUSIONS: A conservative transfusion threshold of 5.5 g/dL in an asymptomatic young trauma patient with associated musculoskeletal injuries leads to a lower infection rate without an increase in adverse outcomes and no difference in functional outcomes at 6 months or 1 year. LEVEL OF EVIDENCE: Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.

Early Treatment of Acetabular Fractures Using an Anterior Approach Increases Blood Loss but not Packed Red Blood Cell Transfusion.

OBJECTIVE: The objective of this study was to determine whether time from hospital admission to surgery for acetabular fractures using an anterior intrapelvic (AIP) approach affected blood loss. DESIGN: Retrospective review. SETTING: Three level 1 trauma centers at 2 academic institutions. PATIENT SELECTION CRITERIA: Adult (18 years or older) patients with no pre-existing coagulopathy treated for an acetabular fracture via an AIP approach. Excluded were those with other significant same day procedures (irrigation and debridement and external fixation were the only other allowed procedures). OUTCOME MEASURES AND COMPARISONS: Multiple methods for evaluating blood loss were investigated, including estimated blood loss (EBL), calculated blood loss (CBL) by Gross and Hgb balance methods, and packed red blood cell (PRBC) transfusion requirement. Outcomes were evaluated based on time to surgery. RESULTS: 195 patients were studied. On continuous linear analysis, increasing time from admission to surgery was significantly associated with decreasing CBL at 24 hours (-1.45 mL per hour by Gross method, P = 0.003; -0.440 g of Hgb per hour by Hgb balance method, P = 0.003) and 3 days (-1.69 mL per hour by Gross method, P = 0.013; -0.497 g of Hgb per hour by Hgb balance method, P = 0.010) postoperative, but not EBL or PRBC transfusion. Using 48 hours from admission to surgery to define early versus delayed surgery, CBL was significantly greater in the early group compared to the delayed group (453 [IQR 277-733] mL early versus 364 [IQR 160-661] delayed by Gross method, P = 0.017; 165 [IQR 99-249] g of Hgb early versus 143 [IQR 55-238] g Hgb delayed by Hgb balance method, P = 0.035), but not EBL or PRBC transfusion. In addition, in multivariate linear regression, neither giving tranexamic acid nor administering prophylactic anticoagulation for venous thromboembolism on the morning of surgery affected blood loss at 24 hours or 3 days postoperative ( P > 0.05). CONCLUSION: There was higher blood loss with early surgery using an AIP approach, but early surgery did not affect PRBC transfusion and may not be clinically relevant. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

High Nonunion and Amputations Rates With Either Early Intramedullary Nail Removal or Retention for Tibial Shaft Fracture-Related Infections.

OBJECTIVES: To compare debridement, antibiotics, and implant retention (DAIR) and intramedullary nail (IMN) removal with subsequent strategy for fracture stabilization in the treatment of tibia fracture-related infections (FRIs) occurring within 90 days of initial IMN placement. DESIGN: Retrospective case-control. SETTING: Four academic, Level 1 trauma centers. PATIENTS: Sixty-six patients who subsequently received unplanned operative treatment for FRI diagnosed within 90 days of initial tibia IMN. INTERVENTION: DAIR versus IMN removal pathways. MAIN OUTCOME MEASUREMENTS: Fracture union. RESULTS: Twenty-eight patients (42.4%) were treated with DAIR and 38 (57.6%) via IMN removal with subsequent strategy for fracture stabilization. Mean follow-up was 16.3 months. At final follow-up, ultimate bone healing was achieved in 75.8% (47/62), whereas 24.2% (15/62) had persistent nonunion or amputation. No significant difference was observed in ultimate bone healing ( P = 0.216) comparing DAIR and IMN removal. Factors associated with persistent nonunion or amputation were time from injury to initial IMN ( P < 0.001), McPherson systemic host grade B ( P = 0.046), and increasing open-fracture grade, with Gustilo-Anderson IIIB/IIIC fractures being the worst ( P = 0.009). Fewer surgeries after initial FRI treatment were positively associated with ultimate bone healing ( P = 0.029). CONCLUSIONS: Treatment of FRI within 90 days of tibial IMN with DAIR or IMN removal with subsequent strategy for fracture stabilization results in a high rate, nearly 1 in 4, of persistent nonunion or amputation, with neither appearing superior for improving bone healing outcomes. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Chitosan Sponges Are Associated With Higher Rates of Wound Complications Compared to Calcium Sulfate Beads.

Background In this study, we aimed to determine if there is a difference in the rates of wound dehiscence, delayed union, nonunion, and unanticipated surgery after the use of bioabsorbable local antibiotic-delivery systems (LADS), specifically comparing antibiotic-impregnated calcium sulfate pellets (Osteoset-T, Wright Medical Technology Inc., Arlington, TN, USA, hereafter referred to as beads) and chitosan sponge (Sentrex BioSponge, Bionova Medical, Germantown, TN, USA, hereafter referred to as sponges) in the management of acute and chronic extremity wounds. Methodology We conducted a retrospective comparative cohort study in the setting of a level 1 trauma center. All patients who received either beads or sponges as an adjunct to surgical debridement from January 2010 to December 2017 were included, and 136 patients met the inclusion criteria. The intervention studied was extremity wounds that were treated with bioabsorbable LADS, either beads or sponges. The main outcome measurement was wound dehiscence and the need for unanticipated surgery. Results Of the 136 patients in the study cohort, 78% (106/136) were treated with beads, and 22% (30/136) were treated with sponges. Of the 136 patients, 50 (37%) experienced wound dehiscence, and 49 patients required unanticipated surgery. Overall, 62% (31/50) of patients with wound dehiscence and 67.4% (33/49) of patients requiring unanticipated surgery were seen in the bead cohort (p = 0.0001 and 0.025, respectively). However, in multivariable analyses, we found that the odds of having wound dehiscence and undergoing unanticipated surgery were, respectively, 4.9 (p = 0.001) and 2.8 (p = 0.021) times more likely to occur in the sponge than in the bead group. Conclusions Sentrex sponges appear to be associated with higher rates of wound dehiscence and the need for unanticipated surgery compared to Osteoset beads.

Midshaft clavicle fractures: is anterior plating an acceptable alternative to superior plating?

PURPOSE: The purpose of this study was to determine whether anterior plating is better tolerated than superior plating for midshaft clavicle fractures. METHODS: This was a prospective non-randomized observational cohort study following operative vs. non-operative management of clavicle fractures from 2003 to 2018 at 7 level 1 academic trauma centers in the USA. The subset of patients treated with plate and screws is the basis for this comparative study. Adults aged 18-85 with closed clavicle fractures displaced over 100% or shortened by more than 1.5 cm were eligible for enrollment. Patients were followed for 2 years following enrollment. Allowable fixation methods at the discretion of the surgeon consisted of anterior-inferior or superior plating. A total of 412 patients were enrolled. Of these, 192 patients received either superior or anterior plating for a displaced clavicle fracture with complete documented prospective research forms capturing type of plating technique. The primary outcome measure was hardware removal (HWR). Secondary outcomes were Disability of the Arm Shoulder and Hand (DASH) score and Visual Analog Pain (VAP) score, and satisfaction score (1 = high satisfaction; 5 = low satisfaction). RESULTS: There was no difference in HWR rates (7.1% superior 9/127; 6.2% anterior 4/65, p = 0.81), VAP score (mean 1.5 SD 1.0 superior; mean 1.7 SD 0.6 anterior, p = 0.21), DASH score (mean 7.5 SD 12.4 superior; mean 5.2 SD 15.2 anterior; p = 0.18) or satisfaction score (mean 1.6 SD 1.0 superior; mean 1.7 SD 0.60 anterior, p = 0.18). CONCLUSION: There is no difference in HWR rates or functional outcomes when using a superior vs. anterior plating technique.

Not All Proximal Humerus Fractures Do Well Without Surgery: Anterior Translation Predicts the Need for Surgery.

OBJECTIVES: To evaluate the effect of translation on a large series of low-energy proximal humerus fractures initially treated nonoperatively. DESIGN: Retrospective multicenter analysis. SETTING: Five level-one trauma centers. PATIENTS/PARTICIPANTS: Two hundred ten patients (152 F; 58 M), average age 64, with 112 left- and 98 right-sided low-energy proximal humerus fractures (OTA/AO 11-A-C). INTERVENTION: All patients were initially treated nonoperatively and were followed for an average of 231 days. Radiographic translation in the sagittal and coronal planes was measured. Patients with anterior translation were compared with those with posterior or no translation. Patients with ≥80% anterior humeral translation were compared with those with <80% anterior translation, including those with no or posterior translation. MAIN OUTCOMES: The primary outcome was failure of nonoperative treatment resulting in surgery and the secondary outcome was symptomatic malunion. RESULTS: Nine patients (4%) had surgery, 8 for nonunion and 1 for malunion. All 9 patients (100%) had anterior translation. Anterior translation compared with posterior or no sagittal plane translation was associated with failure of nonoperative management requiring surgery ( P = 0.012). In addition, of those with anterior translation, having ≥80% anterior translation compared with <80% was also associated with surgery ( P = 0.001). Finally, 26 patients were diagnosed with symptomatic malunion, of whom translation was anterior in 24 and posterior in 2 ( P = 0.0001). CONCLUSIONS: In a multicenter series of proximal humerus fractures, anterior translation of >80% was associated with failure of nonoperative care resulting in nonunion, symptomatic malunion, and potential surgery. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Reliability of the Modified Radiographic Union Score for Tibia Fractures (mRUST) for Femoral Shaft Fractures.

OBJECTIVES: To evaluate the interobserver and intraobserver reliability of the modified Radiographic Union Score for Tibia Fractures (mRUST) and the effect of rater experience in evaluation of femoral fractures. DESIGN: Retrospective cohort study. SETTING: Single Level 1 trauma center. PATIENTS/PARTICIPANTS: Patients 18-55 years of age with a femur shaft fracture. INTERVENTION: Intramedullary nail fixation. MAIN OUTCOME MEASUREMENT: Interobserver and intraobserver reliability using the intraclass correlation coefficient. RESULTS: The overall interobserver reliability was 0.96. Among fellowship-trained evaluators, the interobserver reliability was 0.94, and it was 0.92 among trainees. The overall intraobserver reliability was 0.98. The intraobserver reliability was 0.97 among fellowship-trained evaluators and 0.96 for trainees. CONCLUSIONS: These results show high interobserver and intraobserver reliability of mRUST in the evaluation of radiographic healing for femur shaft fractures treated with intramedullary nail. This high reliability was further demonstrated throughout different postoperative healing time frames. In addition, mRUST appears to be reliable when used both by trainees and experienced surgeons for the evaluation of femur shaft fractures. LEVEL OF EVIDENCE: Diagnostic Level I. See Instructions for Authors for a complete description of levels of evidence.

Locked Plating versus Nailing for Proximal Tibia Fractures: A Multicenter RCT.

OBJECTIVES: The main 2 forms of treatment for extraarticular proximal tibial fractures are intramedullary nailing (IMN) and locked lateral plating (LLP). The goal of this multicenter, randomized controlled trial was to determine whether there are significant differences in outcomes between these forms of treatment. DESIGN: Multicenter, randomized controlled trial. SETTING: 16 academic trauma centers. PATIENTS/PARTICIPANTS: 108 patients were enrolled. 99 patients were followed for 12 months. 52 patients were randomized to IMN, and 47 patients were randomized to LLP. INTERVENTION: IMN or lateral locked plating. MAIN OUTCOME MEASUREMENTS: Functional scoring including Short Musculoskeletal Functional Assessment, Bother Index, EQ-5Dindex and EQ-5DVAS. Secondary measures included alignment, operative time, range of motion, union rate, pain, walking ability, ability to manage stairs, need for ambulatory aid and number, and complications. RESULTS: Functional testing demonstrated no difference between the groups, but both groups were still significantly affected 12 months postinjury. Similarly, there was no difference in time of surgery, alignment, nonunion, pain, walking ability, ability to manage stairs, need for ambulatory support, or complications. CONCLUSIONS: Both IMN and LLP provide for similar outcomes after these fractures. Patients continue to improve over the course of the year after injury but remain impaired even 1 year later. LEVEL OF EVIDENCE: Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.

Characterization of vitamin D deficiency and use of a standardized supplementation protocol in orthopaedic trauma patients.

PURPOSE: The objectives of this study were to assess the incidence of vitamin D deficiency in orthopaedic trauma patients, evaluate the safety and efficacy of a vitamin D supplementation protocol, and investigate the utility of vitamin D supplementation in reducing nonunions. METHODS: Three hundred seventy patients with operative tibia and/or fibula fractures were retrospectively reviewed. Both overall and matched cohorts were analysed. RESULTS: Ninety-eight per cent (n = 210) were found to have vitamin D insufficiency (serum 25(OH)D level < 30 ng/ml). There were no cases of vitamin D toxicity following vitamin D replacement. Median follow-up vitamin D level was 22.7 ng/mL. No statistical difference between union rates was found between either the two consecutive cohorts or matched cohorts. CONCLUSION: This vitamin D replacement protocol was a safe treatment for hypovitaminosis D, but post hoc analysis shows there would need to be over 1200 matched patients to achieve adequate power.

Risk of Infection Following Gunshot Wound Fractures to the Foot and Ankle: A Multicenter Retrospective Study.

The purpose of this multicenter retrospective chart review was to describe demographics, fracture and wound characteristics, and treatments for foot and/or ankle fractures caused by gunshot wounds (GSWs) and identify factors that increase risk of infection in adults treated at 5 urban level 1 trauma centers in South and Midwest regions of the United States. A total of 244 patients sustained GSW-related fractures of the foot/ankle during 2007-2017, of whom 179 had ≥30 days of follow-up data after the initial injury. Most patients were male (95.1%; 232/244) with an average age of 31.2 years. On average, patients sustained 1.3 GSWs (range 1-5) to the foot/ankle. Most GSWs were categorized as low energy (85.1%; 171/201) and the majority (58.2%; 142/244) had retained bullet fragments. Antibiotics were administered at initial presentation to 78.7% (192/244) of patients and 41.8% (102/244) were managed operatively at the time of initial injury. Nerve injury, vascular injury, and infection were documented in, respectively, 8.6% (21/243), 6.6% (16/243), and 17.2% (42/244) of all cases. Multivariable analysis revealed that high-energy injuries and retained bullet fragments increased the risk of infection by 3-fold (odds ratio 3.09, 95% confidence interval 1.16-8.27, p = .025) and 3.5-fold (OR 3.48, 95% CI1.40-8.67; p = .008), respectively. Side of injury, primary injury region, and vascular injury were not significant predictors of infection risk. Further research should examine whether retained bullet fragments are directly associated with infection risk and support the development of guidelines regarding the management of patients with GSW-related fractures to the ankle/foot.

Locked Lateral Plating Versus Retrograde Nailing for Distal Femur Fractures: A Multicenter Randomized Trial.

OBJECTIVES: The 2 main forms of treatment for distal femur fractures are locked lateral plating and retrograde nailing. The goal of this trial was to determine whether there are significant differences in outcomes between these forms of treatment. DESIGN: Multicenter randomized controlled trial. SETTING: Twenty academic trauma centers. PATIENTS/PARTICIPANTS: One hundred sixty patients with distal femur fractures were enrolled. One hundred twenty-six patients were followed 12 months. Patients were randomized to plating in 62 cases and intramedullary nailing in 64 cases. INTERVENTION: Lateral locked plating or retrograde intramedullary nailing. MAIN OUTCOME MEASUREMENTS: Functional scoring including Short Musculoskeletal Functional Assessment, bother index, EQ Health, and EQ Index. Secondary measures included alignment, operative time, range of motion, union rate, walking ability, ability to manage stairs, and number and type of adverse events. RESULTS: Functional testing showed no difference between the groups. Both groups were still significantly affected by their fracture 12 months after injury. There was more coronal plane valgus in the plating group, which approached statistical significance. Range of motion, walking ability, and ability to manage stairs were similar between the groups. Rate and type of adverse events were not statistically different between the groups. CONCLUSIONS: Both lateral locked plating and retrograde intramedullary nailing are reasonable surgical options for these fractures. Patients continue to improve over the course of the year after injury but remain impaired 1 year postoperatively. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

Risk of Postoperative Sciatic Nerve Palsy After Posterior Acetabular Fracture Fixation: Does Patient Position Matter?

OBJECTIVES: To determine whether the prone or lateral position is associated with postoperative sciatic nerve palsy in posterior acetabular fracture fixation. DESIGN: Retrospective cohort study. SETTING: Three Level I trauma centers. PATIENTS: Patients with acetabular fractures treated with a posterior approach (n = 1045). INTERVENTION: Posterior acetabular fixation in the prone or lateral positions. OUTCOME MEASUREMENTS: The primary outcome was the prevalence of postoperative sciatic nerve palsy by position. Secondary outcomes were risk factors for nerve palsy, using multiple regression analysis and propensity scoring. RESULTS: The rate of postoperative sciatic nerve palsy was 9.5% (43/455) in the prone position and 1.5% (9/590) in the lateral position ( P < 0.001). Intraoperative blood loss and surgical duration were significantly higher for patients who developed a postoperative sciatic nerve palsy. Subgroup analysis showed that position did not influence palsy prevalence in posterior wall fractures. For other fracture patterns, propensity score analysis demonstrated a significantly increased odds ratio of palsy in the prone position [aOR 7.14 (2.22-23.00); P = 0.001]. CONCLUSIONS: With the exception of posterior wall fracture patterns, the results of this study suggest that factors associated with increased risk for postoperative sciatic nerve palsy after a posterior approach are fractures treated in the prone position, increased blood loss, and prolonged operative duration. These risks should be considered alongside the other goals (eg, reduction quality) of acetabular fracture surgery when choosing surgical positioning. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Bicondylar Tibial Plateau Fractures: What Predicts Infection?

OBJECTIVES: The purpose of this study was to identify the patient, injury, and treatment factors associated with infection of bicondylar plateau fractures and to evaluate whether center variation exists. DESIGN: Retrospective review. SETTING: Eighteen academic trauma centers. PATIENTS/PARTICIPANTS: A total of 1,287 patients with 1,297 OTA type 41-C bicondylar tibia plateau fractures who underwent open reduction and internal fixation were included. Exclusion criteria were follow-up less than 120 days, insufficient documentation, and definitive treatment only with external fixation. INTERVENTION: Open reduction and internal fixation. MAIN OUTCOME MEASUREMENTS: Superficial and deep infection. RESULTS: One hundred one patients (7.8%) developed an infection. In multivariate regression analysis, diabetes (DM) (OR [odds ratio] 3.24; P ≤ 0.001), alcohol abuse (EtOH) (OR 1.8; P = 0.040), dual plating (OR 1.8; P ≤ 0.001), and temporary external fixation (OR 2.07; P = 0.013) were associated with infection. In a risk-adjusted model, we found center variation in infection rates (P = 0.030). DISCUSSION: In a large series of patients undergoing open reduction and internal fixation of bicondylar plateau fractures, the infection rate was 7.8%. Infection was associated with DM, EtOH, combined dual plating, and temporary external fixation. Center expertise may also play a role because one center had a statistically lower rate and two trended toward higher rates after adjusting for confounders. LEVEL OF EVIDENCE: Level IV-Therapeutic retrospective cohort study.

Overlapping Surgery for Distal Radius Fractures: Is It Safe?

Patients who underwent distal radius fracture (open reduction and internal fixation [ORIF]) at a Level 1 trauma center deemed "overlapping" (greater than 30 minutes overlap) were compared against consecutive cases. Unplanned return to surgery within 1 year was the primary outcome. Sixty-two patients were included in the overlapping group and 37 in the consecutive group. There was no difference in unplanned return to surgery 1 year following procedure with three cases (5%) in the overlapping group and one case (3%) in the consecutive group. There was a significant difference (p = 0.02) in procedure time between the overlapping group (151 + 54 minutes) and nonoverlapping group (126 + 35 minutes). There was no difference in infection, readmission, nonunion, malunion, deep infection, or superficial infection between groups. Based on a post-hoc power analysis with p < 0.05 and power at 80%, 2,691 patients would be needed to determine if there is truly no difference between groups. (Journal of Surgical Orthopaedic Advances 31(2):127-130, 2022).

Open Ankle Fractures: What Predicts Infection? A Multicenter Study.

OBJECTIVE: To identify the patient, injury, and treatment factors associated with an acute infection during the treatment of open ankle fractures in a large multicenter retrospective review. To evaluate the effect of infectious complications on the rates of nonunion, malunion, and loss of reduction. DESIGN: Multicenter retrospective review. SETTING: Sixteen trauma centers. PATIENTS: One thousand and 3 consecutive skeletally mature patients (514 men and 489 women) with open ankle fractures. MAIN OUTCOME MEASURES: Fracture-related infection (FRI) in open ankle fractures. RESULTS: The charts of 1003 consecutive patients were reviewed, and 712 patients (357 women and 355 men) had at least 12 weeks of clinical follow-up. Their average age was 50 years (range 16-96), and average BMI was 31; they sustained OTA/AO types 44A (12%), 44B (58%), and 44C (30%) open ankle fractures. The rate FRI rate was 15%. A multivariable regression analysis identified male sex, diabetes, smoking, immunosuppressant use, time to wound closure, and wound location as independent risk factors for infection. There were 77 cases of malunion, nonunion, loss of reduction, and/or implant failure; FRI was associated with higher rates of these complications (P = 0.01). CONCLUSIONS: Several patient, injury, and surgical factors were associated with FRI in the treatment of open ankle fractures. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Proximal tibia fracture dislocations: Management and outcomes of a severe and under-recognized injury.

INTRODUCTION: Proximal tibia fracture dislocations (PTFDs) are a subset of plateau fractures with little in the literature since description by Hohl (1967) and classification by Moore (1981). We sought to evaluate reliability in diagnosis of fracture-dislocations by traumatologists and to compare their outcomes with bicondylar tibial plateau fractures (BTPFs). METHODS: This was a retrospective cohort study at 14 level 1 trauma centers throughout North America. In all, 4771 proximal tibia fractures were reviewed by all sites and 278 possible PTFDs were identified using the Moore classification. These were reviewed by an adjudication board of three traumatologists to obtain consensus. Outcomes included inter-rater reliability of PTFD diagnosis, wound complications, malunion, range of motion (ROM), and knee pain limiting function. These were compared to BTPF data from a previous study. RESULTS: Of 278 submitted cases, 187 were deemed PTFDs representing 4% of all proximal tibia fractures reviewed and 67% of those submitted. Inter-rater agreement by the adjudication board was good (83%). Sixty-one PTFDs (33%) were unicondylar. Eleven (6%) had ligamentous repair and 72 (39%) had meniscal repair. Two required vascular repair. Infection was more common among PTFDs than BTPFs (14% vs 9%, p = 0.038). Malunion occurred in 25% of PTFDs. ROM was worse among PTFDs, although likely not clinically significant. Knee pain limited function at final follow-up in 24% of both cohorts. CONCLUSIONS: PTFDs represent 4% of proximal tibia fractures. They are often unicondylar and may go unrecognized. Malunion is common, and PTFD outcomes may be worse than bicondylar fractures.