What's New in Orthopaedic Trauma

Efficacy and safety of tranexamic acid for patients with intertrochanteric fractures treated with intramedullary fixation: A systematic review and meta-analysis of current evidence in randomized controlled trials

Background: Tranexamic acid (TXA) has been widely applied to reduce perioperative bleeding. Recently, several studies focused on the administration of TXA in the treatment for with intertrochanteric fracture patients treated with intramedullary fixation. However, the efficacy and safety of TXA in these studies remain controversial. Therefore, we performed this systematic review and meta-analysis to investigate the efficacy and safety of TXA in intertrochanteric fracture patients treated with intramedullary fixation.

Methods: We systematically searched electronic databases, including Cochrane, PubMed, and EMBASE, up to 16 May 2022. The efficacy and safety of TXA was evaluated in four aspects, which were bleeding-related outcomes, non-bleeding-related outcomes, thromboembolic events, and other complications. The outcomes of these studies were extracted and analyzed by RevMan Manager 5.4.

Results: Finally, nine randomized controlled trials, involving nine hundred and seventy-two intertrochanteric fracture patients treated with TXA, were enrolled in this study. In the bleeding-related outcomes, TXA group was significantly lower than the control group in terms of total blood loss (MD = −219.42; 95% CI, −299.80 to −139.03; p < 0.001), intraoperative blood loss (MD = −36.81; 95% CI, −54.21 to −19.41; p < 0.001), hidden blood loss (MD = −189.23; 95% CI, −274.92 to −103.54; p < 0.001), and transfusion rate (RR = 0.64; 95% CI, 0.49 to 0.85; p = 0.002). Moreover, the postoperative hemoglobin on day 3 of the TXA group was significantly higher than that of the control group (MD = 5.75; 95% CI, 1.26 to 10.23; p = 0.01). In the non-bleeding-related outcomes, the length of hospital stays was significantly shorter in the TXA group (MD = −0.67; 95% CI, −1.12 to −0.23; p = 0.003). In terms of thromboembolic events, there was no significant differences between the TXA group and control group in deep vein thrombosis, pulmonary embolism, myocardial infarction, and ischemic stroke. As for complications and mortality, there was no significant differences between the TXA group and control group in respiratory infection, renal failure, and postoperative mortality within 1 year.

Conclusion: TXA is an effective and safe drug for perioperative bleeding control in intertrochanteric fracture patients treated with intramedullary fixation. However, the long-term efficacy of TXA still needs to be investigated by large-scale multicenter randomized controlled trials.

Level of evidence: II, Systematic review and Meta-analysis.

Systematic Review Registration:https://inplasy.com/, identifier [INPLASY202280027]

The Efficacy of Multidisciplinary Team Co-Management Program for Elderly Patients With Intertrochanteric Fractures: A Retrospective Study

Background

Intertrochanteric fractures increased quickly in past decades owing to the increasing number of aging population. Recently, geriatric co-management was rapidly emerging as a favored clinical care model for older patients with hip fractures. The purpose of this study was to assess the efficacy of a multidisciplinary team (MDT) co-management program in elderly patients with intertrochanteric fractures.

Methods

In this retrospective study, patients were divided into MDT group and traditional orthopedic care (TOC) group according to the healthcare model applied. 249 patients were included in the TOC group from January 2014 to December 2016 and 241 patients were included in the MDT group from January 2017 to December 2019. Baseline data, peri-operative data, and postoperative complications were collected and analyzed using SPSS 21.0.

Results

No significant differences were observed between the two groups in terms of patient baseline characteristics. Patients in the MDT group had significantly lower time from admission to surgery and length-of-stay (LOS) compared with those in the TOC group. Furthermore, the proportion of patients receiving surgery within 24 h (61.4 vs. 34.9%, p < 0.001) and 48 h (80.9 vs. 63.5%, p < 0.001) after admission to the ward was significantly higher in the MDT group compared with those in the TOC group. In addition, patients in the MDT group had significantly lower proportion of postoperative complications (25.3 vs. 44.2%, p < 0.001), deep vein thrombosis (7.9 vs. 12.9%, p = 0.049), pneumonia (3.8 vs. 8.0%, p = 0.045) and delirium (4.1 vs. 9.2%, p = 0.025) compared with those in the TOC group. However, no significant changes were found for in-hospital and 30-day mortality.

Conclusion

The MDT co-management could significantly shorten the time from admission to surgery, LOS, and reduce the postoperative complications for elderly patients with intertrochanteric fractures. Further research was needed to evaluate the impact of this model on patient health outcomes.

Arthroplasty vs proximal femoral nails for unstable intertrochanteric femoral fractures in elderly patients: A systematic review and meta-analysis

BACKGROUND

Proximal femoral nails (PFNs) are the most common method for the treatment of unstable intertrochanteric femoral fractures (IFFs), but postoperative bed rest is required. There is a large amount of blood loss during the operation. Osteoporosis in elderly patients may cause nonunion of fractures and other complications. Arthroplasty can give patients early weight bearing and reduce financial burden, but whether it can replace PFNs remains controversial.

AIM

To compare the clinical outcomes of arthroplasty and PFNs in the treatment of unstable IFFs in elderly patients.

METHODS

A search was conducted in the PubMed, Embase, and Cochrane Library databases and included relevant articles comparing arthroplasty and PFN. The search time was limited from January 1, 2005 to November 1, 2020. Two investigators independently screened studies, extracted data and evaluated the quality according to the inclusion and exclusion criteria. According to the research results, the fixed effect model or random effect model were selected for analysis. The following outcomes were analyzed: Harris Hip score, mortality, complications, operation time, blood loos, hospital stay, weight-bearing time, fracture classification and type of anesthesia.

RESULTS

We analyzed four randomized controlled trials that met the requirements. A total of 298 patients were included in these studies. According to the AO/OTA classification, there are 20 A1 types, 136 A2 types, 42 A3 types and 100 unrecorded types. Primary outcome: The Harris Hip Score at the final follow-up of the PFN group was higher [mean difference (MD): 9.01, 95% confidence interval (CI): 16.57 to 1.45), P = 0.02]. There was no significant difference between the two groups in the rate of overall mortality [risk ratio (RR): 1.44, P = 0.44] or the number of complications (RR: 0.77, P = 0.05). Secondary outcomes: blood loss of the arthroplasty group was higher (MD: 241.01, 95% CI: 43.06–438.96, P = 0.02); the operation time of the PFN group was shorter (MD: 23.12, 95%CI: 10.46–35.77, P = 0.0003); and the length of hospital stay of the arthroplasty group was shorter [MD: 0.97, 95% CI: 1.29 to 0.66), P < 0.00001]. There was no difference between the two groups in the type of anesthesia (RR: 0.99). There were only two studies recording the weight-bearing time, and the time of full weight bearing in the arthroplasty group was significantly earlier.

CONCLUSION

Compared with PFN, arthroplasty can achieve weight bearing earlier and shorten hospital stay, but it cannot achieve a better clinical outcome. Arthroplasty cannot replace PFNs in the treatment of unstable IFFs in elderly individuals.

Bone morphological feature extraction for customized bone plate design

Fractures are difficult to treat because of individual differences in bone morphology and fracture types. Compared to serialized bone plates, the use of customized plates significantly improves the fracture healing process. However, designing custom plates often requires the extraction of skeletal morphology, which is a complex and time-consuming procedure. This study proposes a method for extracting bone morphological features to facilitate customized plate designs. The customized plate design involves three major steps: extracting the morphological features of the bone, representing the undersurface features of the plate, and constructing the customized plate. Among these steps, constructing the undersurface feature involves integrating a group of bone features with different anatomical morphologies into a semantic feature parameter set of the plate feature. The undersurface feature encapsulates the plate and bone features into a highly cohesive generic feature and then establishes an internal correlation between the plate and bone features. Using the femoral plate as an example, we further examined the validity and feasibility of the proposed method. The experimental results demonstrate that the proposed method improves the convenience of redesign through the intuitive editing of semantic parameters. In addition, the proposed method significantly improves the design efficiency and reduces the required design time.