Fibular Fracture Research Articles

Causal association between cholecystectomy and fracture: A Mendelian randomization study.

Previous observational studies have reported that cholecystectomy is associated with an increased risk of fracture. However, the causality of this association remains unclear. This study aimed to explore the causal relationship between cholecystectomy and fracture using a Mendelian randomization (MR) approach. Our primary analytical method was the comprehensive two-sample MR analysis, with inverse variable weighting (IVW) serving as the main analysis technique. In addition, we use Bayesian weighted MR analysis to further confirm the results of IVW method. To enhance the robustness of our findings, we employed multiple analytical approaches including MR-Egger, weighted mode, simple mode, and weighted median. We further conducted sensitivity analyses to validate the stability and feasibility of our dataset. The results of IVW methods showed that there had no significant causal effect of cholecystectomy on fracture (forward P value: .82, .63, .96, .60, .19, .40, .58, .38, .37, .97, and .50 for fracture of wrist and hand, fracture of femur, fracture of foot, fracture of forearm, fracture of lower leg, fracture of lumbar spine and pelvis, fracture of neck, fracture of ribs, fracture of shoulder and upper arm, fracture of skull and facial bones, and fracture of spine), the results of Bayesian weighted MR showed similar results (P > .05). In the reverse, fracture of femur (P = .01) and fracture of shoulder and upper arm (P = .01) showed increased risks of cholecystectomy. The sensitivity analysis showed that none of our analyses were horizontally pleiotropic (P > .05 for MR-Egger's intercept method). Our results do not support the causal effect of cholecystectomy on fracture, which was opposite to most previous observational studies.

Modern anatomical locking plates are associated with increased postoperative wound complications and unplanned surgical revisions compared to standard tubular plates in the management of unstable ankle fractures: a comparative cohort study in 595 patients

Abstract Background The clinical benefit of locking plates in distal fibula fractures has not yet been proven. In addition, the risk of wound complications appears to be higher than with conventional tubular plates. We hypothesize that the benefits of locking plates in terms of biomechanical properties are outweighed by a higher risk of wound complications. Methods We conducted a retrospective review of fibula fractures treated by osteosynthesis with either a conventional one-third tubular plate or an anatomically shaped locking plate from January 1, 2015 to December 31, 2021. We recorded baseline data and relevant comorbidities and defined the need for revision surgery due to wound-related or mechanical complications as primary endpoints. Results A total of 595 out of 727 patients were eligible for our study. Of these 595 fractures, 526 were fixed with a one-third tubular plate, 69 with a locking plate. Revision surgery was required in 54 patients, in 51 cases due to wound complications. Three patients required revision surgery for mechanical reasons and all of them were younger than 40 years of age, have not been diagnosed with osteoporosis, but experienced complex fracture types. As the third tubular plate and locking plate groups differed in terms of age and comorbidities, we performed a 2:1 matching based on age and gender, leaving data from 138 patients receiving a third tubular plate. While the two groups were comparable in many aspects, the rate of wound complications was significantly higher in the locking plate group. Although the locking plate group had a higher percentage of diabetes mellitus, there was no correlation between this comorbidity and the higher revision rate in this group. Conclusions Our data do not support the general use of locking plates in the treatment of distal fibular fractures. The risk of mechanical complications in osteoporotic ankle fractures seems to be overrated, as there were no mechanical revisions in the osteoporotic subgroup. The rate of wound-related revision surgery was significantly higher after the use of locking plates. This might be attributed to the greater thickness of locking plates.

The Influence Mechanism of Screw Internal Fixation on the Biomechanics of Lateral Malleolus Oblique Fractures.

It remains inconclusive about the stability and optimal fixation scheme of screw internal fixation for lateral malleolus oblique fractures in clinical practice. In this study, the effects of different screw internal fixation methods on the biomechanics of lateral malleolus oblique fractures were investigated. These efforts are expected to lay a theoretical foundation for the selection of internal fixation methods and rehabilitation training regimens in the treatment of lateral malleolus fractures. A healthy ankle joint model and a lateral malleolus fracture internal fixation model were established based on CT data with the aid of some software. Besides, the effects of screw internal fixation modalities on the fracture displacement of fibula fractures, fibula Von Mises stress, and screw Von Mises stress under different physiological conditions and loading conditions were investigated using finite element methods (FEMs) and invitro physical experiments. The double screw vertical fibular axis internal fixation approach had the lowest fracture displacement of fibula fractures and screw Von Mises stress values; while the double screw vertical fracture line internal fixation approach had the lowest fibula Von Mises stress values. Under different physiological conditions, the magnitude of the peak Von Mises stress of the fibula and screw was ranked as plantarflexion 20° > plantarflexion 10° > neutral position > dorsiflexion 10° > dorsiflexion 20°; and the magnitude of the peak displacement of the fibula fracture breaks was ranked as plantarflexion 20° > plantarflexion 10° > neutral position > dorsiflexion 20° > dorsiflexion 10°. The results of invitro physical experiments and finite element analyses were in good agreement, which validated the validity of finite element analyses. The vertical fracture line screw implantation method displays a better load-sharing ability; while the vertical fibular axis screw implantation method exhibits a better ability to prevent axial shortening of the fibula and also reduces the risk of screw fatigue damage. Overall, the double screw achieves better therapeutic effects than the single screw. Given that the ankle joint has high stability in the dorsiflexion position, it is recommended to prioritize dorsiflexion rehabilitation training, rather than dorsiflexion and plantarflexion rehabilitation training with too large angles, in the treatment of lateral malleolus fractures.

Fracture Line Morphology and a Novel Classification ofPilon Fractures.

Currently, there is no research that includes a comprehensive three-dimensional fracture mapping encompassing all types of Pilon fractures. Moreover, the existing classification systems for Pilon fractures exhibit only moderate to fair consistency and reproducibility. Additionally, some of these classification systems fail to accurately depict the morphological characteristics of the fractures. This study aimed to create a fracture map encompassing all types of Pilon fractures by three-dimensional fracture mapping. In addition, this study conducted a finite element analysis of the normal ankle joint, and based on the distribution of fracture lines and the stress distribution at the distal tibia, proposed a new classification for Pilon fractures. A retrospective analysis of Pilon fractures in our hospital from January 2018 to January 2024 was performed. A total of two hundred forty-four Pilon fractures were included, and their fracture lines were transcribed onto the tibia and fibula templates, and fracture maps and heat maps were created. A nonhomogeneous model of the ankle joint was constructed and verified, and the stress distribution on the distal tibia articular surface was measured and analyzed in three models (neutral, dorsiflexed, and plantarflexed model). Based on the fracture map and stress distribution, a five-column classification system for Pilon fractures was proposed, and the intraobserver and interobserver reliability was calculated using Cohen and Fleiss k statistics. The fracture line on the distal tibia articular surface showed a V-shaped distribution. One branch extended from the junction of the medial malleolar articular surface and the inferior tibial articular surface toward the medial malleolus. The other branch extended from the middle of the fibular notch to the posterior part of the medial ankle, toward the tibial shaft. The fibula fracture line mainly extended from the anterior and lower part of the lateral malleolus to the posterior and upper part. As evidenced by the neutral, dorsiflexed, and plantar flexion models, the stress on the posterolateral articular surface (posterolateral column) was low, while the majority of the stress was concentrated in the center. Three-column fractures were the most common, followed by two-column fractures. Using the five-column classification, the K-weighted values of interobserver and intraobserver analysis were 0.653 (p < 0.001) and 0.708 (p < 0.001), respectively. In this study, the fracture line and morphological characteristics of Pilon fractures were analyzed in detail by three-dimensional mapping. In addition, this study conducted a finite element analysis of the stress distribution on the distal tibial joint surface of the normal ankle joint. Moreover, a novel classification system was proposed to reflect these findings. The new classification not only exhibits greater consistency, facilitating accurate communication of fracture characteristics among surgeons, but also aids in understanding the mechanisms of injury and formulating surgical strategies.

Management of Hypertrophic non-Union After Isolated Fibular Shaft Fracture With Percutaneous Screw Fixation: A Case Report

Management of Hypertrophic non-Union After Isolated Fibular Shaft Fracture With Percutaneous Screw Fixation: A Case Report

The Use of Osteogenon as an Adjunctive Treatment in Lower Leg Fractures.

Background: The goal of the orthopedic treatment of fractures is to achieve bone union as rapidly as possible in the largest possible number of patients and to minimize the number of complications. The purpose of this study was to assess if the use of Osteogenon would have a positive effect on radiological and clinical parameters in patients with lower leg bone fractures treated with the Ilizarov method. Methods: We evaluated 26 patients who had their lower leg bone fractures treated with the Ilizarov method and received Osteogenon at our clinic in the years 2021-2023. The control group comprised 25 patients with lower leg bone fractures treated with the Ilizarov method who did not receive Osteogenon. We assessed the following parameters: time to achieving bone union, bone union rate, time to resuming normal physical activity, time to achieving pain relief, the number of patients reporting pain relief, and the rate of complications. Results: The median time to achieve bone union after lower leg bone fracture treated with the Ilizarov method was shorter in the Osteogenon group (108.5 days) compared to the control group (134 days), p < 0.001. Bone union was achieved in all the patients in the Osteogenon group and in 96% of the patients in the control group; the difference was not statistically significant. The median time to resuming normal physical activity was shorter in the Osteogenon group (22.5 weeks) compared to the control group (27 weeks), p < 0.001. The median time to achieving pain relief was shorter in the Osteogenon group (21 weeks) compared to the control group (30 weeks), p < 0.001. The proportion of patients who reported pain relief was 88.46% in the group receiving Osteogenon and 76% in the control group; this difference was not statistically significant. The number of complications was lower in the Osteogenon group (8 patients; 30.77%) compared to the control group (15 patients; 60%), p = 0.035. Conclusions: The use of Osteogenon has a beneficial impact on the treatment of lower leg bone fractures with the Ilizarov method. Osteogenon shortens the time to achieve bone union. Moreover, the use of the ossein-hydroxyapatite complex helps reduce the number of complications and shortens the time to achieve pain relief and to resume normal activities.

Comparison of elective implant removal and complication rates between mini and small fragment implants for lateral malleolar fixation

IntroductionImplant removal after open reduction and internal fixation (ORIF) of ankle fractures is common. Mini-fragment implants have gained popularity for their smaller size, with studies showing similar load to failure to small-fragment implants. We hypothesized mini-fragment implant use for ORIF of the distal fibula is associated with a lower implant removal rate and without an increase in implant failure. MethodsIn this retrospective review study at two level-one trauma centers, adult patients (>18 years) with a lateral malleolar or bimalleolar fracture were included. Chart review was performed to determine if patients received ORIF of the distal fibula with mini-fragment implants or small-fragment implants. The primary outcome was elective implant removal of the fibular plate. Secondary outcomes included complications requiring reoperation. ResultsFive-hundred and five patients were included with a mean age of 50.6 ± 17.8 years old with a mean follow-up of was 75.7 ± 61.0 weeks. Sixty patients (11.9 %) received mini-fragment fixation. The rate of elective distal fibula implant removal for the mini-fragment group was 8.3 % (5 of 60) compared to 10.8 % (48 of 445) in the small-fragment group (p = .66). The complication rate was 6.7 % (4 of 60) for the mini fragment group versus 6.5 % (29 of 445) for the small fragment group (p = 1.00). Logistic regression demonstrated that each additional week of follow-up increased the implant removal rate with the observed odd ratio (OR) of 1.007 (95 % CI 1.002–1.012). ConclusionElective implant removal rates and complications requiring reoperation were similar between mini-fragment and small-fragment fixation of distal fibula fractures. The hypothetical benefit of low-profile mini-fragment implants should be balanced with the higher implant cost.

The effect of pin distractor assistance on the reduction of fibular fractures in the treatment of ankle fracture: A retrospective case-control study.

This study will evaluate the therapeutic effect of pin distractor assisted reduction of fibular fracture on ankle fracture. A retrospective analysis was performed on 98 patients diagnosed as ankle fracture or pilon fracture. These patients were all combined with fibular fracture. Retrospective analysis included 48 patients in the experimental group (distractor assisted reduction) and 48 patients in the control group (without pin distractor). The statistical indexes include: the time spent in fracture reduction and fixation, the length of surgical incision, the operative blood loss of fracture operation, the incidence of incision skin necrosis, the incidence of fracture end splitting during reduction, the quality of fracture reduction, the time of fracture healing, infection rate, and The American Orthopedic Foot and Ankle Society score at the last follow-up. There were statistical differences between the 2 groups in the time spent in the reduction and fixation of fractures, the incidence of fracture end splitting during reduction, the quality of anatomical reduction of fractures, and the healing time of fractures. The experimental group was better than the control group. In addition, for patients with long spiral fracture, comminuted fracture, osteoporotic fracture and preoperative delay time for operation more than 2 weeks, the time spent in the reduction and fixation of fracture, the operative blood loss of fracture operation, the incidence of fracture end splitting during reduction, the quality of anatomical reduction of fracture, and the healing time of fracture in the experimental group are also better than those in the control group. The pin distractor assisted reduction of fibular fracture has the advantages of simple operation, less trauma, short operation time, less operative blood loss, and fewer complications. It is especially suitable for patients with long spiral fibular fracture, comminuted fracture, osteoporotic fracture, and long preoperative delay time in ankle fracture.

No difference in early outcomes comparing intramedullary versus extramedullary fibular fixation in operative ankle fractures

IntroductionThe purpose of this study was to compare postoperative complications and outcomes of minimally invasive intramedullary fixation (IMF) versus plate fixation (PF) in the treatment of distal fibular fractures. Materials and methodsA retrospective review was performed from identifying all consecutive ankle fracture patients aged ≥18-years-old surgically managed between August 2017 to September 2022 at a tertiary care center with minimum 6 months clinical follow-up. Patients were grouped into those receiving intramedullary versus extramedullary fibular fixation. The primary outcomes were relevant demographic factors (diabetes, osteoporosis, charlson comorbidity index [CCI]), surgical time, complication rates, reoperation rates. Secondary outcomes included time to definitive fracture fixation, fracture characteristics (AO/OTA and Lauge-Hansen classification), syndesmotic instability requiring fixation and discharge disposition. ResultsForty-one IMF patients (average age 55.3 ± 18.1yrs) and 162 PF patients (47.7 ± 17.4yrs) were identified and included in this study. Within the IMF group, 25 patients received IM nailing and 16 patients received percutaneous screw fixation. A greater proportion of IMF patients had diabetes (39 % vs 22 %, p < 0.001), osteoporosis (22 % vs 3 %, p < 0.001), and moderate or severe CCI (41 % vs 23 %, p = 0.017). Surgical time was significantly reduced when using IMF technique (80.4 ± 43.1 min vs 99.1 ± 43.1 min, p = 0.012). Overall complication rates or time to complication did not differ significantly between groups (p = 0.578 and p = 0.082, respectively); however, when sub-stratified, IMF patients trended towards experiencing fewer wound related complications versus PF patients (5 % vs 9 %, p = 0.291). No IMF patients experienced deep or superficial infections and only 2 (5 %) patients experienced wound dehiscence. Reoperation rates(15 % vs 10 %, p = 0.267) and time to fracture union (2.7 ± 2.2 mos vs 3.1 ± 2.0 mos, p = 0.301) did not differ significantly. At final follow-up (IMF: 15.0 ± 12.2 mos vs PF: 28.5 ± 19.5 mos), Olerud and Molander ankle score was significantly higher in IMF compared to PF (87.1 ± 14.2 vs 76.2 ± 22.6, p = 0.002). ConclusionPatients in the IMF group at baseline had several comorbid medical conditions that put them at high risk for wound related complications, however, postoperatively they demonstrated higher functional scores and similar complication rates compared to the PF group. It is important to note, however, while we expected a higher rate of wound issues with the PF group, there were no significant differences in infection rates. Either IMF and PF is reliable for fixation and outcomes, and thus with proper soft tissue, biologically friendly technique, either IMF or PF is a reliable choice in the fixation of fibula fractures. Level of evidenceIII, retrospective cohort comparison study.

A Case of Fat Embolism Syndrome after Fracture of Tibia Fibula

Fat embolism syndrome is a fatal condition that affects several organs. It often occurs after trauma or orthopedic surgeries. Most are unnoticed, and treatment of it is primarily supportive, with early fracture repair as a preventative measure. This case report describes a patient who had a left tibia fibula fracture diagnosed using Gurd's criteria and verified by a CT pulmonary angiography and MRI, and was treated with supportive care. Bangladesh Crit Care J September 2024; 12 (2): 167-171

Effect of tibial rotation on knee and ankle function in patients with extra-articular distal tibial fractures after minimally invasive plate osteosynthesis treatment

To investigate the effect of tibial rotation on knee and ankle function in the patients with extra-articular distal tibial fractures after minimally invasive plate osteosynthesis (MIPO) treatment. A retrospective analysis was conducted on 45 patients with extra-articular distal tibial fractures who underwent MIPO between January 2021 and December 2022. There were 20 males and 25 females, aged from 19 to 68 years (mean, 43.6 years). The causes of fractures included falling from heights in 11 cases, traffic accidents in 15 cases, bruising by a heavy object in 7 cases, and falling in 12 cases. The time from injury to hospitalization was 1-6 hours (mean, 3.7 hours). There were 28 cases of simple tibial fractures and 17 cases of tibial fractures combined with ipsilateral fibular fractures; 9 cases of open fractures and 36 cases of closed fractures. According to AO/Orthopaedic Trauma Association (AO/OTA) classification, the distal tibial fractures were classified as type 43A1 in 12 cases, type 43A2 in 17 cases, and type 43A3 in 16 cases. During follow-up, the Lower Limb Function Score (LEFS), American Orthopaedic Foot and Ankle Society (AOFAS) score, and Knee Injury and Osteoarthritis Score (KOOS) were used to evaluate the lower limb, ankle, and knee joint functions, respectively. The range of motion (ROM) of the knee and ankle joints was measured. The Short Form Health Survey (SF-36) was used to assess the quality of life of the patients. The fracture healing was observed by anteroposterior and lateral X-ray films of the ankle joint. The bilateral tibial rotation angles were measured on CT and the differences between the affected and healthy sides were caculated. The difference ≥10° was judged as tibial malrotation. According to whether there was tibial malrotation, the patients were allocated into a normal group and a malrotation group for efficacy comparison. The incisions of all patients healed by first intention without any early complications. All patients were followed up 12-26 months (mean, 18.6 months). Imaging re-examination showed that all fractures healed, with a healing time of 9-14 weeks (mean, 11.2 weeks). At last follow-up, the LEFS score was 60-68 (mean, 62.3); the AOFAS score was 89-97 (mean, 92.6); the KOOS score was 158-164 (mean, 161.3). The ROM of ankle was 40.0°-45.0° (mean, 42.8°) in flexion and 10.5°-22.0° (mean, 17.7°) in extension; the ROM of knee was 130.0°-135.0° (mean, 132.6°) in flexion and -8.8°- -5.0° (mean, -7.1°) in extension. The SF-36 score was 89-93 (mean, 90.7). The absolute value of difference of tibial rotation angle was 2.6°-17.3° (mean, 8.9°) in 45 patients, and the malrotation was observed in 15 patients (33.3%), including 10 cases of internal rotation and 5 cases of external rotation. There was no significant difference ( P>0.05) in the proportion of patients with fibular fractures before operation between the malrotation group and the normal group, as well as in the AOFAS score, KOOS score, LEFS score, SF-36 score, and ROMs of knee and ankle joints at last follow-up. The incidence of tibial malrotation after MIPO treatment for extra-articular distal tibial fractures is relatively high, but it has no significant effect on knee and ankle functions. However, careful manipulation and precise evaluation should be performed during operation to avoid the occurrence of malrotation.

Physeal Growth Arrest after Traumatic Injury of Distal Tibial Physis A Systematic Review and Meta-Analysis

Abstract Background Injury to the physis of the distal tibia in children can lead to subsequent growth arrest. This can result in physeal bars, leg-length discrepancies and angular deformities. Aim of the Work Is to review &amp; meta-analysis the distal tibia physeal injury, treatment &amp; how to decrease complications e.g premature physeal closure (PPC), angular deformity &amp; leg length discrepancy. Patients and Methods We considered randomized controlled trials, prospective or retrospective cohort studies and case–control studies that directly compared ORIF to closed treatment of distal tibia physeal fractures in children and reported the rate of PPC. PPC was defined on radiographs by the presence of a bony bar in the distal tibia physis of the injured limb. Participants were young patients below 18 years old who have distal tibial physis fractures treated by closed reduction &amp; internal fixation (CRIF), open reduction &amp; internal fixation (ORIF). Results this systematic review we found that the degree of initial displacement was significant risk factor for growth arrest after physeal fracture of the distal tibia. Therefore, physicians should consider the possibility of growth arrest in patients with severely displaced physeal fractures of the distal tibia. The displaced S-H II distal tibia physeal fractures have a high risk of periosteal entrapment. ORIF is an effective choice of treatment to obtain an anatomical reduction for patients with &amp;gt; 3 mm of initial displacement. However, PPC is a common complication following ORIF. The presence of associated fibula fracture plays an important role in the fracture outcome. Conclusion the degree of initial displacement was significant risk factor for growth arrest after physeal fracture of the distal tibia. Therefore, physicians should consider the possibility of growth arrest in patients with severely displaced physeal fractures of the distal tibia. The displaced S-H II distal tibia physeal fractures have a high risk of periosteal entrapment. ORIF is an effective choice of treatment to obtain an anatomical reduction for patients with &amp;gt; 3 mm of initial displacement. However, PPC is a common complication following ORIF. The presence of associated fibula fracture plays an important role in the fracture outcome.

Does regional anesthesia impact the frequency and timing of fasciotomy following surgical repair of lower leg fracture; A National Database Analysis

Study objectiveThere is controversy surrounding the use of regional anesthesia for the surgical repair of tibia and/or fibula fractures. In this study our goals are 1.) to describe the utilization of regional anesthesia for repair of lower leg fractures using a large nationally representative database; 2.) to compare the incidence of acute compartment syndrome (ACS) and need for fasciotomy following lower leg fracture surgery between patients who received nerve blocks and those that do not; 3.) compare the timing of postoperative fasciotomy between patients that received nerve blocks and those that do not. DesignRetrospective study of national administrative database. PatientsThe population of interest were patients who underwent surgery for repair of tibia and fibula fractures and subsequent fasciotomy from the Premier Healthcare database (Premier Healthcare Solutions, Inc., Charlotte, NC; 2006–2021. Surgical repair of tibia and fibula fractures as well as fasciotomies were identified using a standard set of international classification of diseases -ninth/tenth revision (ICD-9/10) codes. InterventionNone. MeasurementsThe Primary outcome was incidence of lower leg fasciotomy and/or compartment syndrome diagnoses following lower leg fracture repair surgery. We compared patients who received nerve blocks with those that did not receive nerve blocks. As a secondary outcome we compared the timing of fasciotomy after the index surgery between patients who received nerve block and those that did not receive a nerve block. Main resultsOur study population included 77,685 patients who underwent surgery for a tibia and/or fibula fracture, of which 5241 (6.7 %) patients had a nerve block. Overall, 3009 (3.9 %) of patients received an ACS diagnosis and 2448 (3.2 %) underwent a fasciotomy. Patients who did not receive a nerve block were more likely to receive a diagnosis of ACS (n = 2889), 4.0 % no block vs. n = 120, 2.3 % block p < 0.0001). Fasciotomies were performed more frequently in patients who did not receive a nerve block compared to those that did (n = 2359, 3.3 % no block vs. n = 89, 1.7 % p < 0.0001). The mean day of fasciotomy for patients who did not receive nerve blocks was 1.5 with 4.0 in patients who received nerve blocks (p < 0.001). ConclusionsNerve blocks are not widely used for postoperative analgesia following lower leg fracture surgery. The population of patients who receive nerve blocks is different than patients who do not receive nerve blocks. Nerve blocks were not associated with an increase in ACS diagnosis or fasciotomy.

Residual Deformity and Outcome in Non-Surgically Treated Tibial Shaft Fractures in Adolescents Nearing Skeletal Maturity

Background. Anatomic reduction is crucial to avoid malalignment in tibial shaft fractures in adolescents approaching physeal closure. While surgical treatment is becoming more common, casting and immobilization are still widely done for appropriately selected fractures. Local radiographic and clinical outcomes of non-surgical treatment need to be explored. Objective. The primary objective of this study was to report residual lower limb deformity of tibial shaft fractures treated non-surgically in adolescents nearing skeletal maturity. The study also identified factors or fracture characteristics that may predict these deformities and reported the clinical outcomes using the Lower Extremity Functional Scale (LEFS). Methodology. This was a cross-sectional study of 31 adolescents nearing skeletal maturity at the time of injury with acute closed tibial shaft fractures treated non-surgically at the Philippine Orthopedic Center from 2017 to 2020. Skeletal maturity and residual sagittal &amp; coronal angulation were analyzed through radiographs. Rotational alignment and leg length discrepancies were evaluated clinically. Functional outcome was measured using the LEFS. Results. Coronal plane angulation (r = -0.397; p = 0.05) and leg length discrepancy (r = -0.394; p = 0.05) were inversely correlated with LEFS scores. Coronal plane angulation was also correlated with ipsilateral fibular fractures (p = 0.007). LEFS scores were 79.39 on average (range 75 to 80). Conclusion. Among adolescents nearing skeletal maturity with isolated acute tibial shaft fractures, closed reduction and casting followed by close monitoring remains useful and effective.

Determination of distal fibula fracture for prediction of ankle injuries

Objective This study quantified the local fracture tolerance of the distal fibula. The purpose of this data is to refine the understanding of ankle fracture tolerance in the population and enhance injury prediction by computational tools. Methods Fracture patterns of the fibula were obtained from the US National Highway Traffic Safety Administration (NHTSA) Crash Injury Research Engineering Network (CIREN). Of 143 cases of ankle injury, 120 included fibula fracture, many of which accompanied by radiology images. The most common fibula fracture type was a Weber C fracture, which was then used as the testing target to replicate with postmortem human surrogates. Isolated distal fibulae (male and female, across a wide anthropometric range) were subjected to quasi-static lateral-medial four-point bending superimposed on axial precompression. Results Of the 20 specimens tested, 17 fractured in compression and bending, two fractured in compression, bending, and shear, and one did not fracture upon the imposed displacement. Fractures occurring outside of the target testing span were treated as right-censored data points. Fracture patterns varied among specimens, with oblique fractures being most common, followed by segmental fractures. At failure, compressive force ranged from 77 N to 370 N and bending moment from 17 Nm to 47 Nm. Conclusions From the 19 fractured specimens, the variety of fracture patterns observed were generally consistent with the range of fibula fracture types and locations commonly observed in the field. While comparative studies with fibula specimens are largely absent from literature, comparison of this study to other long bones (radius and ulna) show that bending moment at fracture is similar. To the author’s knowledge, this is the first study to quantify the fracture tolerance of isolated distal fibulae under loading conditions representative of ankle injury mechanisms in motor vehicle collisions. By combining the results of this study with complementary results from parallel tibia-focused experiments (currently in-press), these results will aid development of tissue-level lower leg fracture prediction of human body models, thus enhancing prediction of ankle injury during safety assessment simulations. Specifically, the fracture tolerance information might generate an injury risk function to guide tissue-level injury prediction with human body models.

Single-Incision Direct Lateral Approach Versus Dual-Incision Approach for Distal Tibial and Fibular Fractures.

Distal tibial and fibular fractures are typically the result of high-energy trauma. Open reduction and internal fixation (ORIF) are often used to reconstruct and reduce displaced fractures, especially intra-articular ones. These fractures can be addressed either by a dual-incision approach (medial approach for the distal tibia and lateral approach for the fibula) or by a single-incision direct lateral approach to fix both the tibia and fibula. The direct lateral approach avoids injury to the medial soft tissues. This study was conducted to compare the postoperative clinico-radiological and functional outcomes of the single-incision direct lateral approach and the dual-incision approach for distal tibial and fibular fractures. A prospective comparative cohort study of 40 patients was conducted. The patients were classified into two cohorts of 20 each based on the surgical approach: those who underwent a single-incision direct lateral approach and those who underwent a dual-incision approach for distal tibial and fibular fractures (procedure: ORIF with plating). The study was conducted from September 2022 to March 2024. A follow-up period of at least 12 months was carried out, comparing operative time, discharge time, and postoperative outcomes using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, ankle range of motion (ROM), Southampton wound score for wound healing, visual analog scale (VAS) pain score, and periodic radiographs at each follow-up. Complications were also studied. The mean operative time was 95.06 ± 7.04 minutes for thesingle-incision approach and 109.89 ± 7.88 minutes for the dual-incision approach. The average blood loss was 202.41 ± 32.76 mL for thesingle-incision approach and 248.39 ± 28.18 mL for the dual-incision approach. The hospital stay was shorter in the direct lateral approach group, and the AOFAS score at 12 months was better in the direct lateral approach group (91.47 ± 2.55 for thesingle-incision approach vs. 83.33 ± 8.71 for the dual-incision approach). Postoperative wound healing was observed, and the Southampton wound score was compared. Overall, soft tissue complications were fewer in the direct lateral approach group. The postoperative VAS pain score was consistently lower in the single-incision direct lateral approach group, which also demonstrated better ankle ROM. The p-value was significant (<0.05) for these parameters. At the six-month follow-up, all patients exhibited clinical and radiographic healing and bone union, except for one case in the dual-incision group. A medial compound wound, treated by plastic surgery with flap cover intervention, was identified as one of the definitive indications for single-incision plating. The single-incision approach was associated with better soft tissue healing, fewer wound complications, and superior ankle functional outcomes compared to the dual-incision approach.

Paley cross union protocol for congenital pseudoarthrosis of the tibia.

Congenital pseudarthrosis of the tibia (CPT) is a rare, dysplastic condition causing significant disability in the lower limbs. A treatment aims to achieve long-lasting union, prevent limb length discrepancies, and prevent soft tissue lesions. Traditional surgery often yields satisfactory results, but amputation may be proposed in failed cases. This report presents a congenital pseudarthrosis of the tibia and fibula, treated with the Paley cross-union protocol. A 15-month-old girl presented with a crooked right lower leg at the age of two months, history of a right lower leg fracture at the age of eight months, and pain when moving her leg. She had undergone an initial surgical procedure to maintain tibia alignment with K-Wire insertion and was cast at a private hospital. The patient's physical examination showed a cast causing limited range of motion, but no tenderness or distal neurovascular issues. The Paley cross-union protocol was performed, involving anterior approach, curettage, and insertion of a titanium intramedullary elastic nail into the tibia. The fracture site area was covered with a meshed periosteum layer and filled with synthetic bone grafts. A long leg cast was performed after the procedure. An imaging examination post-cross-union protocol showed a good result. Cross-union for CPT represents a paradigm shift in the treatment of this horrible child disease. Given the promising result, the cross-union approach has to be regarded as a fresh criterion for treating CPT.

Short term temporal outcomes after intramedullary fixation of lateral malleolus fractures

Ankle fractures are a common intra-articular trauma. The gold standard treatment for unstable ankle fractures has been Open Reduction Internal Fixation with plating and lag screw(s). Advocates for intramedullary nailing of the fibula note decreased wound complications and greater biomechanical strength. We hypothesized that time to union and time to weight bearing would be decreased with a fibular intramedullary nail compared to prior ankle ORIF literature. A retrospective cohort study was conducted of 65 consecutive ankle fracture patients treated with a fibular nail. The median follow-up time was 18.3 months (IQR: 55.4 – 97.6 days). All patients (100%) achieved clinical and radiographic union at a median of 9.6 (IQR: 54 – 78 days) and 10.8 weeks (IQR: 58 – 95 days), respectively. Post-operatively patients bore weight in walking boot and athletic shoe at a median 6.1 and 9.4 weeks, respectively. Fifteen patients suffered complications (23.1%). Patients with history of prior or active smoking were significantly correlated to longer time to union (p=0.016). Time to union also took 0.43 days longer for each additional year of age (t-value 2.13, p-value = 0.038). Nineteen out of 65 patients (29.2%) participated in the Olerud-Molander Ankle Scoring and the median functional outcome score was 71 (IQR: 56 – 93). While fibular nailing has advanced passive range of motion and weight bearing in our institution, time to weight bearing is clouded by surgeon comfort. Further study comparing fibular fracture healing and weight bearing status in regards to intramedullary and plate fixation in needed. Level of EvidenceIV

How has acute syndesmotic injury management evolved over the last decade? Results from a national survey

The management of acute distal tibiofibular syndesmotic injuries has evolved over time and therefore, the aim of this study was to evaluate the use of different methods and the changes regarding management of distal tibiofibular syndesmotic injury among Dutch trauma- and orthopedic surgeons.A digital survey based on a previous survey conducted in 2012 was sent to (orthopedic) trauma surgeons from all different hospitals in the Netherlands.Sixty out of the 68 invited hospitals completed at least one survey (88.2 %). For Weber B or low Weber C fractures, there was a preference for the use of a single syndesmotic screw (SS)(73.6 %), while two screws were mainly used in Maisonneuve fractures (89.3 %). Furthermore, there was a clear preference for 3.5-mm screws, engaging three cortices, 2 to 4-cm above the tibiotalar joint. There is a significant decrease in routine removal of SSs (23.2 % compared to 87.0 % in 2012, p < 0.01). The percentage of hospitals in this survey that used the suture button (SB) was relatively low: 8.3 % for low fibular fractures and 5.0 % in high fibular fractures.In conclusion, the most striking difference compared to 2012 is the large decline in routine removal of the SS, which is in line with current literature. The SS is mainly implanted engaging three cortices, placed 2-4 cm above the tibiotalar joint and 3.5 mm in size and for the treatment of Maisonneuve fractures, two screws are preferred over a single SS. Level of evidenceLevel III

Early Weight-Bearing Using Narrow Symmetrical Distal Fibular Plate: Preliminary Results

Background: Ankle fractures, comprising about 10% of musculoskeletal injuries, pose a significant healthcare burden with an increasing incidence, particularly among an aging population. This study focuses on isolated Danis-Weber type B fractures. Recent trends lean towards surgical intervention for anatomical restoration and quicker recovery, albeit with associated complications. This report aims to assess the safety and efficacy of the NewClip narrow locking plate system with early weight-bearing in treating isolated fibular fractures. Methods: The study includes patients with Danis-Weber type B fractures surgically treated with the NewClip narrow locking plate system. Exclusions involved nondisplaced fractures, open fractures, or those requiring additional fixation. Results: Fifteen patients were enrolled in this study. Minor complications, including wound swelling, were observed in two cases. The Visual Analogue Scale (VAS) for pain exhibited a steady decline postoperatively, with almost complete resolution by the third month. At three months, the FAOS demonstrated excellent results, and a final follow-up at twelve months revealed complete osseous healing without complications. Conclusions: The use of this type of plate in treating isolated fibular fractures with early weight-bearing shows promising results in terms of fracture healing, pain resolution, and functional outcomes, warranting further investigation with larger cohorts.