Extra-articular distal tibia fractures-controversies regarding treatment options. A single-centre prospective comparative study

Efficacy comparison between intramedullary nail fixation and plate fixation in distal tibia fractures: a meta-analysis of randomized controlled trials

BACKGROUND

Intramedullary nail (IMN) and plate fixation are the most commonly used surgical modalities for distal tibia fractures. However, the superiority of their efficacy regarding functional outcomes and complications remains controversial. Here, we performed a systematic review and meta-analysis to compare the efficacy of these two modalities.

METHODS

Randomized controlled trials (RCTs) comparing the efficacy of IMN and plate fixation in distal tibia fractures were searched in PubMed, Web of Science, EMBASE, ClinicalTrials.gov, and Cochrane Library up to January 31, 2024. Weighted mean difference (WMD) and odds ratio (OR) with corresponding 95% confidence interval (CI) were estimated using a random-effect model for continuous and categorical outcomes, respectively.

RESULTS

A total of 20 RCTs comprising 1528 patients were included. Compared with plate fixation, IMN significantly shortened surgery time (WMD=-10.73 min, 95%CI: -15.93 to -5.52), union time (WMD=-1.56 weeks, 95%CI: -2.82 to -0.30), and partial (WMD=-1.71 weeks, 95%CI: -1.91 to -0.43) and full (WMD=-2.61 weeks, 95%CI: -3.53 to -1.70) weight-bearing time. IMN was associated with markedly reduced risk of wound infection (OR = 0.44, 95%CI: 0.31-0.63) and secondary procedures (OR = 0.72, 95%CI: 0.55-0.95), but increased the risk of malunion (OR = 1.53, 95%CI: 1.02-2.30) and anterior knee pain (OR = 3.94, 95%CI: 1.68-9.28). The rates of nonunion, delayed union, and functional assessment scores did not significantly differ between the two groups. The percentages of patients obtaining an excellent functional outcome or an excellent and good functional outcome post-operation were comparable.

CONCLUSIONS

Both IMN and plate fixation are effective modalities for the surgical treatment of distal tibia fractures. IMN seems to be preferred since it confers more advantages, but the elevated rates of malunion and knee pain require attention. The decision on fixation modality should be tailored to the specific fracture, considering these pros and cons.

Finite element analysis comparison of Type 42A2 fracture fixed with external titanium alloy locking plate and traditional external fixation frame

BACKGROUND

At present, not all Type AO/OTA 42A2 open fractures can be treated by external fixation brackets, not to mention the inconvenience of this technique in clinical practice. External titanium alloy locking plates, which are lightweight and easy-to-operate, can be used as an alternative treatment option for such patients. However, there are few reports of finite element biomechanical analysis on the titanium alloy locking plates and fixation brackets being placed on the medial side of the tibial fracture. In this study, the biomechanical properties of titanium alloy locking plates and fixation brackets for treating Type AO/OTA 42A2 fractures were compared by applying the finite element method, and the results provided data support for the clinical application of the external titanium alloy locking plate technique.

METHODS

Type AO/OTA 42A2 fracture models were constructed using CT data of a male volunteer for two external fixation techniques, namely the external titanium alloy locking plate technique and the external fixation bracket technique, according to commonly-used clinical protocols. Then, the four-point bending, axial compression, clockwise rotation and counterclockwise rotation tests under the maximum load were simulated in finite element analysis software. The stress distribution, peak stress and overall tibial displacement data for the two different external fixation techniques were obtained and compared.

RESULTS

In the four different test conditions (i.e., four-point bending, axial compression, clockwise torsion, counterclockwise torsion) under the maximum load, the two external fixation techniques showed obvious von Mises stress concentration at the contacts between the screw and tibia, between the screw and titanium alloy locking plate, between the self-tapping self-drilling needle and tibia, between the self-tapping self-drilling needle and the external fixation device, as well as around the fracture end and around the cortical bone at the upper and lower ends of the tibia. The peak stress was ranged 26.67-558.77 MPa, all below the yield stress strength of titanium alloy. The peak tibial displacement of the external titanium alloy locking plate model was smaller than that of the fixation bracket model. In terms of structural stability, the external titanium alloy locking plate technique was superior to the external fixation bracket technique.

CONCLUSIONS

When fixing Type AO/OTA 42A2 fractures, external titanium alloy locking plates are not only lightweight and easy-to-operate, but also have better performance in terms of axial compression, bending and torsion resistance. According to the finite element biomechanical analysis, external titanium alloy locking plates are superior to traditional external fixation brackets in treating Type AO/OTA 42A2 fractures and can better meet the needs of clinical application.

The semi-extended infrapatellar intramedullary nailing of distal tibia fractures: a randomized clinical trial

BACKGROUND

Malalignment is a common event during the intramedullary nailing (IMN) of distal tibia fractures (DTFs). Although it is reported that the semi-extended IMN techniques such as suprapatellar (SP) and parapatellar (PP) approaches may be superior in preventing malalignment, the application of these techniques is concerning owing to the intra-articular involvement. We thus developed an extra-articular semi-extended infrapatellar (SEIP) approach which utilizes the infrapatellar (IP) space while maintaining the knee in a semi-extended position. However, there are no studies on the safety and efficacy of SEIP in treating DTFs. Therefore, in this study, the SEIP technique was examined, particularly in terms of the potential alignment improvement of DTFs, and this technique was compared with the traditional hyperflexed infrapatellar (HFIP) procedure.

MATERIALS AND METHODS

This randomized clinical trial (RCT) compared IMN malalignment while correcting extraarticular and nondisplaced intra-articular DTFs between April 2018 and June 2021 using the HFIP and SEIP techniques at a level I trauma center in China. The study participants were clinically and radiographically examined for at least 12 months of follow-ups. Intraoperative fluoroscopy time, operation time, blood loss, hospitalization duration, functional ankle score, and complications were assessed as well.

RESULTS

Among the 88 recruited participants, 45 (51%) underwent traditional HFIP IMN and 43 (49%) underwent SEIP IMN. Malalignment occurred in 9 patients (20.0%) from the HFIP cohort and in 2 patients (4.7%) from the SEIP cohort (P value = 0.030). In addition, the SEIP IMN technique significantly reduced the intraoperative fluoroscopy time, operation time, and improved the postoperative ankle function compared to the HFIP IMN technique. However, the intraoperative blood loss, hospitalization duration, infection, delay union, and nonunion remained the same between the two cohorts.

CONCLUSIONS

In summary, we demonstrated that the SEIP IMN provides markedly enhanced alignment of extraarticular and nondisplaced intra-articular DTFs compared to the traditional HFIP IMN procedure. The described technique represents an effective option for IMN of DTFs.

LEVEL OF EVIDENCE

Level 2. Trial registration The Chinese Clinical Trial Registry, ChiCTR2100043673. Registered 26 February 2021, retrospectively registered, http://www.chictr.org.cn/showprojen.aspx?proj=122263.

Novel Retrograde Tibial Intramedullary Nailing for Distal Tibial Fractures

Purpose

Postoperative distal tibial fractures are often associated with complications such as difficulties in fracture healing and surgical incision infection. The purpose of this study is to evaluate the fracture healing time and functional recovery after a retrograde tibial intramedullary nail treatment for distal tibial fractures.

Methods

We retrospectively studied 9 cases of patients with distal tibial fractures treated with retrograde intramedullary nailing (IMN). Fracture healing time was based on monthly postoperative x-ray imaging results, and functional outcomes were defined according to the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score.

Results

Among the 9 patients with distal tibial fractures from July 2020 to April 2021, the mean age was 51.8 ± 13.8 years. The classification of distal tibial fractures in the 9 patients according to OTA (Orthopaedic Trauma Association) includes 6 extra-articular fractures (3 of type A1, 2 of type A2, and 1 of type A3) and 3 intra-articular fractures (1 of type C1 and 2 of type C2). Among them, there were 5 closed fracture cases and 4 open fracture cases (according to Gustilo classification: 2 of type I, 2 of type II). We treated the fractures surgically with new retrograde tibial intramedullary nailing. The mean follow-up time for this group was 7.9 months (5–12 months). According to monthly postoperative radiographs performed to monitor fracture healing, the mean healing time was 3.3 months (3–4 months). Final postoperative function according to the AOFAS ankle-hindfoot score shows 6 excellent cases, 3 good cases. No serious complications such as postoperative infection, bone and internal fixation exposure, osteofascial compartment syndrome, or vascular nerve injury occurred.

Conclusion

The new retrograde tibial intramedullary nail (RTN) has some unique advantages, and its treatment of distal tibial fractures can achieve good efficacy, but further studies are still needed to verify it.

Intramedullary nailing of extra-articular distal tibial fractures

AIMS

The aim of this study was to determine the immediate post-fixation stability of a distal tibial fracture fixed with an intramedullary nail using a biomechanical model. This was used as a surrogate for immediate weight-bearing postoperatively. The goal was to help inform postoperative protocols.

METHODS

A biomechanical model of distal metaphyseal tibial fractures was created using a fourth-generation composite bone model. Three fracture patterns were tested: spiral, oblique, and multifragmented. Each fracture extended to within 4 cm to 5 cm of the plafond. The models were nearly-anatomically reduced and stabilized with an intramedullary nail and three distal locking screws. Cyclic loading was performed to simulate normal gait. Loading was completed in compression at 3,000 N at 1 Hz for a total of 70,000 cycles. Displacement (shortening, coronal and sagittal angulation) was measured at regular intervals.

RESULTS

The spiral and oblique fracture patterns withstood simulated weight-bearing with minimal displacement. The multifragmented model had early implant failure with breaking of the distal locking screws. The spiral fracture model shortened by a mean of 0.3 mm (SD 0.2), and developed a mean coronal angulation of 2.0° (SD 1.9°) and a mean sagittal angulation of 1.2° (SD 1.1°). On average, 88% of the shortening, 74% of the change in coronal alignment, and 75% of the change in sagittal alignment occurred in the first 2,500 cycles. No late acceleration of displacement was noted. The oblique fracture model shortened by a mean of 0.2 mm (SD 0.1) and developed a mean coronal angulation of 2.4° (SD 1.6°) and a mean sagittal angulation of 2.6° (SD 1.4°). On average, 44% of the shortening, 39% of the change in coronal alignment, and 79% of the change in sagittal alignment occurred in the first 2,500 cycles. No late acceleration of displacement was noted.

CONCLUSION

For spiral and oblique fracture patterns, simulated weight-bearing resulted in a clinically acceptable degree of displacement. Most displacement occurred early in the test period, and the rate of displacement decreased over time. Based on this model, we offer evidence that early weight-bearing appears safe for well reduced oblique and spiral fractures, but not in multifragmented patterns that have poor bone contact. Cite this article: Bone Joint J 2021;103-B(2):294-298.

Intramedullary reaming and irrigation and antibiotic-loaded calcium sulfate implantation for the treatment of infection after intramedullary nailing: a retrospective study of 19 cases

Background

The incidence of intramedullary infection is increasing with increased use of intramedullary fixation for long bone fractures. However, appropriate treatment for infection after intramedullary nailing is unclear. The purpose of this study was to report the results of our treatment protocol for infection after intramedullary nailing: intramedullary nail removal, local debridement, reaming and irrigation, and antibiotic-loaded calcium sulfate implantation with or without segmental bone resection and distraction osteogenesis.

Methods

We retrospectively reviewed the records of patients with an infection after intramedullary nailing treated from 2014 to 2017 at our center. Patients with follow-up of less than 24 months, received other treatment methods, or those with serious medical conditions were excluded from the analysis. Patients met the criteria were treated as described above, followed by distraction osteogenesis in 9 cases to repair bone defect. The infection remission rate, infection recurrence rate, and post-operative complication rates were assessed.

Results

A total of 19 patients were included in the analysis. All of patients had satisfactory outcomes with an average follow-up of 38.1 ± 9.4 months (range, 24 to 55 months). Eighteen patients (94.7%) achieved infection remission; 1 patient (5.3%) developed a reinfection that resolved after repeat debridement. Nine patients with bone defects (average size 4.7 ± 1.3 cm; range, 3.3 to 7.6 cm) were treated with bone transport which successfully restored the length of involved limb. The mean bone transport duration was 10.7 ± 4.0 months (range, 6.7 to 19.5 months). The majority of patients achieved full weight bearing and became pain free during the follow-up period. Postoperative complications mainly included prolonged aseptic drainage (7/19; 36.8%), re-fracture (1/19; 5.3%) and joint stiffness, which were successfully managed by regular dressing changes and re-fixation, respectively.

Conclusion

Intramedullary nail removal, canal reaming and irrigation, and antibiotic-loaded calcium sulfate implantation (with or without distraction osteogenesis) is effective for treating infections after intramedullary nailing.

Prevalence and influencing factors of nonunion in patients with tibial fracture: systematic review and meta-analysis

OBJECTIVE

The aim of this study is to assess the prevalence of nonunion in patients with tibia fracture and the association between influencing factors and tibia fracture nonunion.

METHOD

A database searches of PubMed, the Cochrane Library, EMBASE, China National Knowledge Infrastructure (CNKI), Weipu database, and Wanfang database from inception until June 2019 was conducted. The pooled prevalence, odds ratio (OR), and 95% confidence intervals (CI) were calculated with Stata software.

RESULTS

In this study, 111 studies involving 41,429 subjects were included. In the study of the relationship between influencing factors and tibia fracture nonunion, 15 factors significantly influenced the fracture union, including > 60 years old, male, tobacco smoker, body mass index > 40, diabetes, nonsteroidal anti-inflammatory drugs (NSAIDs) user, opioids user, fracture of middle and distal tibia, high-energy fracture, open fracture, Gustilo-Anderson grade IIIB or IIIC, Müller AO Classification of Fractures C, open reduction, fixation model, and infection.

CONCLUSION

The prevalence of nonunion in patients with tibia fracture was 0.068 and 15 potential factors were associated with the prevalence. Closed reduction and minimally invasive percutaneous plate osteosynthesis (MIPPO) have the low risks of nonunion for the treatment of tibial fractures.

Outcome and complications of distal tibia fractures treated with intramedullary nails versus minimally invasive plate osteosynthesis and the role of fibula fixation

INTRODUCTION

Distal tibia fractures have been managed conservatively as well surgically. A large number of implants have been used for surgical management of these fractures. No treatment method or implant has been proven to be superior to others. In this prospective comparative study, the complications and outcome of distal tibia fractures managed with intramedullary nails and minimally invasive plate osteosynthesis has been compared. Further, the role of fibula fixation in these fractures has been evaluated.

MATERIALS AND METHOD

One hundred and fifty-four patients of distal tibia fractures with concomitant fibula fractures were randomized into 4 treatment groups based on predetermined inclusion criteria. Functional outcome in these groups was compared based on AOFAS score at 1 year. Intra-operative, post-operative parameters as well as radiological alignment, complications and the need for reoperation were also compared in these groups.

RESULT

The functional outcome in all four treatment groups was similar. The duration of surgery and radiation exposure was higher with minimally invasive plate osteosynthesis. There was no improvement in outcome with plating of fibula. However, fixation of fibula improved the rotational alignment in distal tibia fractures.

CONCLUSION

Although there is no difference in outcome of distal tibia fractures with either nailing or minimally invasive plating, nailing is recommended for closed displaced extraarticular fractures. Fixation of fibula should not be done routinely but should be reserved only for a few specific fracture patterns.

Intramedullary Nailing Versus Minimally Invasive Plate Osteosynthesis for Distal Tibial Fractures: A Systematic Review and Meta-Analysis

To evaluate the application, safety and efficacy of the patients treated with intramedullary nailing (IMN) and minimally invasive plate osteosynthesis (MIPO) in distal tibia fractures. Following the Preferred Reporting Items for Systematic Reviews and Meta Analysis (PRISMA) guidelines, we searched databases PubMed, Cochrane library, EMBASE and Web of Science from inception of the database up to 10 October 2018, using the keywords "distal tibia fractures", "plate", "intramedullary nailing" and "RCT" to identify randomized clinical trials about distal tibia fractures. The included studies were assessed by two researchers according to the Cochrane risk-of-bias criteria. The primary outcome of measurement included operation time, malunion rate, nonunion/delayed union rate, and wound complication. Data analysis was conducted with Review Manager 5.3 software. A total of 10 RCTs involving 911 patients fulfilled the inclusion criteria with 455 patients in the IMN group and 456 patients in the MIPO group. There were no significant differences in radiation time, nonunion or delayed union rate, union time and operation time between the two groups. Patients treated with MIPO had lower incidence of malunion compared with IMN (RR = 1.85, 95%CI: 1.21 to 2.83, P = 1.00), while IMN seemed to have lower surgical incision complications whether in closed or opening fractures (RR = 0.49, 95%CI 0.33 to 0.73, P = 0.43). But in patients classified as 43A, the result of subgroup analysis suggested that there was no significant inwound complication between the two groups. MIPO was superior in preventing malunion compared with IMN, and intramedullary nailing appeared to have lower wound complications. However, in patients with 43A distal tibial fractures, MIPO was more recommended for its prevention of malunion. No matter which method we choose, we should notice and prevent the associated complications.

High-energy tibial pilon fractures: an instructional review

High-energy tibial pilon fractures continue to represent a significant challenge to the treating orthopaedic surgeon. Pre-operative evaluation includes a careful clinical assessment of the associated soft tissue injury, which frequently dictates surgical management. Staged surgical reconstruction remains the standard treatment protocol at most trauma centres. This includes application of a temporary spanning external fixator for approximately one to four weeks, followed by open reduction and internal fixation once the surrounding soft tissues are amendable. Despite careful soft tissue management protocols, the risk of wound complications continues to be relatively high compared to other orthopaedic trauma procedures. The functional long-term outcomes of these injuries remain limited, and recent data has emphasised that the majority of patients do not regain their pre-operative work status. In addition, the health-related quality of life scores fare poorly when compared to other orthopaedic and non-orthopaedic patient populations, and many patients develop post-traumatic arthritis within the tibiotalar joint. It has been shown that the quality of fracture reduction may significantly correlate with the long-term functional outcomes. While the orthopaedic community has come a long way with regard to safe management of high-energy tibial pilon fractures, the clinical outcomes continue to remain limited. In particular, the persistently high rates of wound complications and the limited functional long-term outcomes leave significant room for improvement. Future investigators may focus on further innovations to minimise the risk of wound complications. The surgical team may emphasise the quality of fracture reduction as an important treatment goal.

Haematology panel biomarkers for humeral, femoral, and tibial diaphyseal fractures

PURPOSE

The neutrophil to lymphocyte ratio (NLR) is a simple predictor used in oncology and cardiology. We aimed to analyze the NLR profile of patients with diaphyseal fractures of the humerus, femur, and tibia.

METHODS

We performed a cross-sectional, consecutive-case population-based study including 148 patients (41.9% men respectively 58.1% women) with humeral (23.0%), femoral (30.4%), and tibial (46.6%) diaphyseal fractures, admitted for surgical treatment in our level 1 trauma centre over two years.

RESULTS

The differences in NLR between the studied subgroups were not significant (p = 0.067), the highest value being observed in patients with femoral fracture (5.6) in contrast to patients with humeral fracture (4). In the global cohort, there was a significantly positive correlation between NLR and PLR (platelet to lymphocyte ratio; Spearman's r = 0.595; p < 0.001). The stratified subgroup analysis found significant association between NLR and duration of admission only for patients with femoral fracture (Spearman's r = - 0.308; p < 0.001). When compared with controls, all three fracture types had significantly higher neutrophil numbers and NLR and lower thrombocyte numbers.

CONCLUSIONS

NLR are elevated in femur diaphyseal fractures compared with tibia and humerus, up to cut-off values with negative prediction of outcome in malignancy and cardiovascular patients. Increased NLR are predictive of longer hospital admissions for femur fractures.

Treatment of distal tibial fractures: prospective comparative study evaluating two surgical procedures with investigation for predictive factors of unfavourable outcome

PURPOSE

The aim of this study is to compare clinical and radiological outcome of intramedullary nailing (IMN) and locked plate (LP) in patients affected by fracture of the distal tibia (DTF). We performed also an analysis to identify predictive factors of unfavourable outcome.

METHODS

Data about patients with DTF treated at our first level trauma centre between 2008 and 2017 were collected. Patients were divided in group 1 (IMN) and group 2 (LP). The inclusion criteria were age at least 18 years at the time of diagnosis and unilateral DTF (closed or Gustilo 1). Demographic variables and data related to surgical procedure and hospitalization were registered. X-ray at follow-up was reviewed to identify malunions and nonunions. Clinical outcome was evaluated using scores and registering any complication.

RESULTS

One hundred two patients were included in group 1 and 81 in group 2. In group 2 were documented higher operating time and hospitalization. The mean union time was 20.2 weeks for IMN and 24.8 weeks for LP group (p = 0.271). The rate of infections and wound complications was higher in group 2 while malunion and anterior knee pain were more frequent in group 1. No difference in scores for clinical outcome was documented after six months. The full-weight bearing time was significantly longer in the LP group (p = 0.019). At multivariate analysis, no variables showed a predictive power for unfavourable outcome.

CONCLUSIONS

Clinical and radiological results of LP and IMN appear similar. No predictive factors of unfavourable outcome were identified.

Treatment of infection following intramedullary nailing of tibial shaft fractures-results of the ORS/ISFR expert group survey

OBJECTIVE

The lack of universally accepted treatment principles and protocols to manage infected intramedullary (IM) nails following tibial fractures continues to challenge us, eliciting a demand for clear guidelines. Our response to this problem was to create an ORS/ISFR taskforce to identify potential solutions and trends based on published evidence and practices globally.

MATERIALS AND METHODS

A questionnaire of reported treatment methods was created based on a published meta-analysis on the topic. Treatment methods were divided in two groups: A (retained nail) and B (nail removed). Experts scored the questionnaire items on a scale of 1-4 twice, before and after revealing the success rates for each stage of infection. Inter- and intra-observer variability analysis among experts' personal scores and between experts' scores was performed. An agreement mean and correlation degree between experts' scores was calculated. Finally, a success rate report between groups was performed.

RESULTS

Experts underestimated success rate of an individual treatment method compared to published data. The mean difference between experts' scores and published results was + 26.3 ± 46 percentage points. Inter-observer agreement mean was poor (< 0.2) for both rounds. Intra-observer agreement mean across different treatment methods showed a wide variability (18.3 to 64.8%). Experts agree more with published results for nail removal on stage 2 and 3 infections.

CONCLUSIONS

Experts' and published data strongly agree to retain the implant for stage 1 infections. A more aggressive approach (nail removal) favoured for infection stages 2 and 3. However, literature supports both treatment strategies.

EVIDENCE

Clinical Question.