Posterior Malleolar Fractures Research Articles

Locking versus nonlocking plates for the treatment of posterior malleolar ankle fractures: A retrospective cohort study and cost analysis

BackgroundWe hypothesized that, as posterior malleolar ankle fractures usually present one or two main fragments, the buttress plating principle can be successfully achieved either with conventional nonlocking or anatomic locking posterior tibia plates, and no clinical differences should be found. The aim of this study was to evaluate the outcomes of posterior malleolar ankle (PM) fractures treated with conventional nonlocking (CNP) or anatomic locking plates (ALP), and also to compare both constructs in terms of crude costs. MethodsA retrospective cohort study was designed. CNP was used in 22 patients and ALP was used in 11 patients. American Orthopedic Foot and Ankle Society (AOFAS) score was registered at four weeks, 3–6 months, 12 and 24 months to assess all patients’ functional status. The primary outcome was ankle and hindfoot AOFAS score at 12 months follow-up visit. All complications, radiographic evaluation and implant construct costs were also registered and compared. The average follow-up was 25.4 (range, 12–42) months. ResultsNo significant difference was observed between both cohorts, in terms of AOFAS score and complication rate (P > .05). We found that ALP construct is 17 times more expensive than CNP construct in our institution (P < .001). ConclusionAnatomic locking posterior tibial plates may be an interesting device when poor bone quality is present or when a true multifragmentary pilon fracture is faced. Anatomic locking posterior tibia plate should not become a regular implant for any PM fracture since equivalent clinical and radiological results were obtained in our study using CNP with a significant reduced cost.

INTER-RATER AND INTRARATER RELIABILITY OF THREE COMMON CLASSIFICATION SYSTEMS FOR POSTERIOR MALLEOLUS FRACTURES: A MULTICENTRE STUDY

A number of classification systems exist for posterior malleolus fractures of the ankle. The reliability of these classification systems remains unclear. The primary aim of this study was to evaluate the reliability of three commonly utilised fracture classification systems of the posterior malleolus.60 patients across 2 hospitals sustaining an unstable ankle fracture with a posterior malleolus fragment were identified. All patients underwent radiographs and computed tomography of their injured ankle. 9 surgeons including pre-ST3 level, ST3-8 level, and consultant level applied the Haraguchi, Rammelt, and Mason &amp; Molloy classifications to these patients, at two timepoints, at least 4 weeks apart. The order was randomised between assessments. Inter-rater reliability was assessed using Fleiss’ kappa and 95% confidence intervals (CI). Intra-rater reliability was assessed using Cohen's Kappa and standard error (SE).Inter-rater reliability (Fleiss’ Kappa) was calculated for the Haraguchi classification as 0.522 (95% CI 0.490 – 0.553), for the Rammelt classification as 0.626 (95% CI 0.600 – 0.652), and the Mason &amp; Molloy classification as 0.541 (95% CI 0.514 – 0.569). Intra-rater reliability (Cohen's Kappa) was 0.764 (SE 0.034) for the Haraguchi, 0.763 (SE 0.031) for the Rammelt, 0.688 (SE 0.035) for the Mason &amp; Molloy classification.This study reports the inter-rater and intra-rater reliability for three classification systems for posterior malleolus fractures. Based on definitions by Landis &amp; Koch (1977), inter-rater reliability was rated as ‘moderate’ for the Haraguchi and Mason &amp; Molloy classifications; and ‘substantial’ for the Rammelt classification. Similarly, the intra-rater reliability was rated as ‘substantial’ for all three classifications.

One quick and simple fixation method: posterior malleolus fractures in spiral tibial fractures

ObjectiveSpiral fracture of tibia combined with posterior malleolar fracture (PMF) is a special and regular injury. There is no uniform fixation method for PMF in this kind of injury. Intramedullary nail is the first choice for the treatment of tibial spiral fracture. We proposed a minimally invasive percutaneous screw combined with intramedullary nail technology to fix the PMF in the tibial spiral fracture. This study aims to explore the effectiveness and advantages of this technology.Materials and methodsFrom January 2017 to February 2020, 116 cases of spiral fracture of tibia combined with PMF who were operated in our hospital were divided into Fixation Group (FG) and No Fixation Group (NG) according to whether PMF was fixed. After minimally invasive percutaneous screw fixation of ankle fracture in FG patients, the tibial intramedullary nail was inserted to fix the fracture. Collected the operation and postoperative recovery of the two groups of patients, including the operation time, intraoperative blood loss, AOFAS score, VAS score and dorsiflexion restriction of ankle joint at the last follow-up, and compared whether there is any difference between the two groups of patients.ResultsThe fracture of both groups healed.2 patients in NG had secondary displacement of PMF during operation, and the fracture finally healed after fixation. There were statistical differences between the two groups in terms of operation time, AOFAS score and weight bearing time. The operation time of FG was 67.9±11.2 min, and that of NG was 60.8±9.4 min; The weight bearing time of FG was 57.35±34.72 days, and that of NG was 69.17±21.43 days; The AOFAS score of FG was 92.50±3.46, and that of NG was 91.00±4.16. There were no significant difference in blood loss, VAS and dorsiflexion restriction of ankle joint between the two groups. The blood loss of FG was 66.8±12.3 ml, the blood loss of NG was 65.6±11.7 ml, the VAS score of FG was 1.37±0.47, the VAS score of NG was 1.43±0.51, the dorsiflexion restriction of FG was 5.8±4.1; the NG was 6.1±5.7.ConclusionFor the injury of tibial spiral fracture combined with PMF, our fixation technology can achieve minimally invasive fixation of PMF with percutaneous screws on the basis of intramedullary nail fixation of tibial fracture, promoting early functional exercise of ankle joint and early weight bearing of patients. This fixation technology is also characterized by simple and fast operation.

Reproducibility of Bartoníček and Haraguchi classifications of the posterior malleolus fractures.

Two of the most commonly used classifications for the posterior malleolus fracture are Haraguchi and Bartoníček. Both classifications are based on the morphology of the fracture. This study makes an inter- and intra-observer agreement analysis of the mentioned classifications. 39 patients with ankle fractures who met inclusion criteria were selected. All the fractures were analyzed and classified twice by each of the 20 observers using Bartoníček and Haraguchi's classifications, with a window period of at least 30days between the two rounds. Analysis was made by Kappa coefficient (ƙ). The global intraobserver value was ƙ = 0.627 in the Bartoníček classification and ƙ = 0.644 in the Haraguchi one. The first round global interobserver ƙ = 0.589 (0.574-0.604) on the Bartoníček classification and ƙ = 0.534 (0.517-0.551) on the Haraguchi one. Second round coefficients were ƙ = 0.601 (0.585-0.616) and ƙ = 0.536 (0.519-0.554), respectively. The best agreement was when there was involvement of the posteromedial malleolar zone with ƙ = 0.686 and ƙ = 0.687 in Haraguchi II and ƙ = 0.641 and ƙ = 0.719 in Bartoníček III. No differences were observed in Kappa values when an experience-based analysis was made. Bartoníček and Haraguchi classifications of the posterior malleolus fracture have both substantial intraobserver agreement but moderate to substantial agreement in interobserver analysis. IV.

Electric scooter injuries: Incidence and injury patterns at a level I trauma center

PurposeElectric scooters (e-scooters) have become an increasingly popular mode of public transportation in recent years. As the incidence of related injuries rises, it is important to understand specific fracture patterns unique to e-scooters and electric bikes (e-bikes) to help guide management. The purpose of this study was to review the prevalence and describe specific fracture patterns of e-scooter and e-bike related injuries at the busiest level 1 trauma center in the borough of Manhattan. MethodsChart review to determine mechanism of injury was performed on all patients for whom an orthopedic consult was requested from 1/1/2021 to 12/31/2021. All patients whose injuries were sustained due to an e-scooter or e-bike were further reviewed for demographics, injury characteristics including fracture pattern, and definitive injury management. Any patients who had an orthopedic consult placed for a reason other than an acute injury were excluded. Descriptive statistics are reported as frequency (percentage) for categorical variables and means for continuous variables. ResultsOf the 1815 orthopedic consults requested, 1357 (74.8%) were for acute injury management. Of those with acute injuries, 119 (8.8%) sustained 136 e-scooter or e-bike related injuries. There were 92 (77.3%) males at an average age of (33.8 ± 15.7) years. Approximately one-fifth of all patients presented in June 2021 (26, 21.8%). There was a 9.2% rate of open fractures. The 136 injuries were evenly split between the upper and lower extremities, with 57 (47.9%) upper extremity, 57 (47.9%) lower extremity injuries, and 5 (4.2%) concomitant upper and lower extremity injuries. The most common fracture patterns were ankle fractures (16, 11.7%), followed by tibial shaft (14, 10.2%), tibial plateau (13, 9.5%), and radial head fractures (11, 8.0%). There was a 33.3% incidence of associated posterior malleolar fractures in the spiral tibial shaft fractures, 31.0% of posterior malleolar involvement and 18.8% of isolated vertical medial malleolar fractures in the ankle fractures, and 61.5% of posterior comminution in the tibial plateau fractures. ConclusionE-scooter and e-bike related injuries have a high incidence of tibial shaft fractures, ankle fractures, tibial plateau fractures, and radial head fractures. There should be a high index of suspicion for posterior and medial involvement in lower extremity fractures sustained due to e-scooter or e-bikes. Identifying specific fracture patterns seen in e-scooter and e-bike related mechanisms will help guide management of these injuries.

Effect of Posterior Malleolar Fixation on Syndesmotic Stability

Background: Transsyndesmotic fixation with suture buttons (SBs), posterior malleolar fixation with screws, and anterior inferior tibiofibular ligament (AITFL) augmentation using suture tape (ST) have all been suggested as potential treatments in the setting of a posterior malleolar fracture (PMF). However, there is no consensus on the optimal treatment for PMFs. Purpose: To determine which combination of (1) transsyndesmotic SBs, (2) posterior malleolar screws, and (3) AITFL augmentation using ST best restored native tibiofibular and ankle joint kinematics after 25% and 50% PMF. Study Design: Controlled laboratory study. Methods: Twenty cadaveric lower-leg specimens were divided into 2 groups (25% or 50% PMF) and underwent biomechanical testing using a 6 degrees of freedom robotic arm in 7 states: intact, syndesmosis injury with PMF, transsyndesmotic SBs, transsyndesmotic SBs + AITFL augmentation, transsyndesmotic SBs + AITFL augmentation + posterior malleolar screws, posterior malleolar screws + AITFL augmentation, and posterior malleolar screws. Four biomechanical tests were performed at neutral and 30° of plantarflexion: external rotation, internal rotation, posterior drawer, and lateral drawer. The position of the tibia, fibula, and talus were recorded using a 5-camera motion capture system. Results: With external rotation, posterior malleolar screws with AITFL augmentation resulted in best stability of the fibula and ankle joint. With internal rotation, all repairs that included posterior malleolar screws stabilized the fibula and ankle joint. Posterior and lateral drawer resulted in only small differences between the intact and injured states. No differences were found in the efficacy of treatments between 25% and 50% PMFs. Conclusion: Posterior malleolar screws resulted in higher syndesmotic stability when compared with transsyndesmotic SBs. AITFL augmentation provided additional external rotational stability when combined with posterior malleolar screws. Transsyndesmotic SBs did not provide any additional stability and tended to translate the fibula medially. Clinical Relevance: Posterior malleolar fixation with AITFL augmentation using ST may be the preferred surgical method when treating patients with acute ankle injury involving an unstable syndesmosis and a PMF ≥25%.

Validation of three classification systems for posterior malleolus fractures of the ankle.

A number of classification systems exist for posterior malleolar ankle fractures. The user reliability of these classification systems remains unclear. The primary aim of this study was to evaluate the reliability of three commonly utilised classification systems for fractures of the posterior malleolus. Imaging of 60 patients across 2 hospitals with ankle fractures including a posterior malleolar fragment was identified. All patients had undergone plain radiographs and computed tomography of their injured ankle as part of their normal standard of care. 9 surgeons including pre-resident/registrar level, resident/registrar level, and attending/consultant level applied the Haraguchi, Bartoníček, and Mason classifications to these fractures, at two timepoints, at least 4weeks apart. The order was randomised between assessments. Inter-rater reliability was assessed using Fleiss' κ and standard error (SE). Intra-rater reliability was assessed using Cohen's κ and standard error (SE). Inter-rater reliability (Fleiss' κ) was calculated for the Haraguchi classification as 0.588 (SE 0.023), for the Bartoníček classification as 0.626 (SE 0.019), and the Mason classification as 0.541 (SE 0.098). Intra-rater reliability (Cohen's κ) was 0.761 (SE 0.098) for the Haraguchi classification, 0.761 (SE 0.091) for the Bartoníček, classification, and 0.724 (SE 0.096) for the Mason classification. This study reports the inter-rater and intra-rater reliability for three classification systems for posterior malleolus fractures. Based on definitions by Landis and Koch (Biometrics 33:159-174, 1977), inter-rater reliability was rated as 'moderate' for the Haraguchi and Mason classifications and 'substantial' for the Bartoníček classification. Similarly, the intra-rater reliability was rated as 'substantial' for all three classifications.

Functional Outcome of Surgical Management of Trimalleolar Fractures

Background: Trimalleolar fracture is very hamstring if it not maintained accurately. It is one of the pitiful condition. Trimalleolar ankle injuries have become more common in the last decade, with up to 40 per 100,000 people affected each year. Study design: It is a prospective study conducted for the duration of six months from February 2022 to July 2022 at Islam teaching hospital, Sialkot. Material and Methods: The study was carried out on 52 patients who were admitted in tertiary care unit during a period of one year. All the patients were following inclusion criteria, those who were unable to fulfill were excluded from the study. There were 36 males and 16 females taken for study. 30 patients had injury in the right side and 18 reported left side injury. The hospital review board committee give the approval to the study. The data was collected and statistically analyzed by using the renowned software SPSS. The result were presented in the form of table. Results: The injury pattern that was frequently observed in patients was supination external rotation reported in 40 patients. While 8 had pronation external rotation and 4 had to face supination adduction pattern. There were 4 cases that complaint about superficial infection and deep infection was observed in case of 2 patients. Conclusion: It is concluded that for the fixation of Trimalleolar fractures, there is a need for proper planning and reduction of lateral malleolus fractures by a lateral plating method. Keywords: ankle fracture, operative planning and Posterior malleolus fracture.

Single lateral approach for open reduction and internal fixation of posterior malleolar fragment in Weber B rotational ankle fracture.

Ankle fractures involving the posterior malleolus are a relatively common injuries, but various surgical approaches are still being introduced, and the selection of an appropriate surgical method is still controversial. The aim of this study was to introduce the surgical method using a single lateral approach for open reduction and internal fixation for posterior malleolar (PM) fractures associated with Weber B type ankle fractures. In this retrospective study, the single lateral approach was used for osteosynthesis of the PM fracture with Weber B lateral malleolar fractures. A total of 40 patients were followed up at for least 12 months (mean, 23.3; range, 12-88). Clinical assessment was based on the Olerud and Molander score, Foot and Ankle Outcome Score, visual analog scale, and subjective patient satisfaction 1 year after surgery. The accuracy of reduction was evaluated as <1 mm of displacement on the lateral view of the postoperative radiographs. The mean Olerud and Molander ankle score was 85.6 ± 12.7 and the mean Foot and Ankle Outcome Score was 82.7 ± 15.9 at 1-year postoperatively. Acceptable reduction was achieved in 38 of 40 (95%) cases. During the follow-up period, arthritic change was observed in 1 case and limited range of motion was confirmed in 2 cases. There was 1 case of postoperative wound problem and no case of sural nerve injury. The single lateral approach is a relatively simple and convenient method that enables accurate reduction and minimizing complication for fixation of the PM fractures with Weber B lateral malleolar fractures.

Comparing Temporary Immobilization Using Cast and External Fixator in Unimalleolar Ankle Fracture Dislocations: A Retrospective Case Series.

Studies have reported a high percentage of ankle fracture dislocations with secondary loss of reduction during primary treatment with a splint or cast. This study aimed to assess the rate of secondary loss of reduction in unimalleolar ankle fracture dislocations treated primarily with a cast or external fixator, identify the potential influence of fracture morphology, and investigate the potential implications. Unimalleolar ankle fracture dislocations with and without posterior malleolar fracture between 2011 and 2020 were included. Patients were categorized into two groups, depending on the method of temporary treatment. Fracture morphology, time to definitive surgery, and soft-tissue complications were compared. Of 102 patients, loss of reduction tended to occur more often in the cast group (17.3%) than in the external fixator group (6.0%). The presence of a posterior malleolar fracture did not have a significant influence on loss of reduction in cast immobilization; however, the fragment proved to be significantly bigger in cases with loss of reduction. No statistically significant differences in soft tissue complications or time to definitive surgery were found. Surgeons should consider the application of interval external fixation in the primary treatment of unimalleolar ankle fracture dislocations with additional posterior malleolar fractures.

Posterior malleolus fracture: a mid-term follow-up

BackgroundThe treatment of posterior malleolar fractures is changing rapidly, and the evidence base is still catching up. This study aimed to assess the mid-term prognosis of posterior malleolar fractures based on different morphological types and provides evidence for the treatment of posterior malleolar fractures.MethodsWe retrospectively analyzed the data of inpatients with posterior malleolar fractures from 1 January 2012 to 31 December 2019 at one high-volume tertiary trauma center. Fracture morphology was classified into small-shell fragment, single-fragment (small-fragment and large-fragment) and multifragment (double-fragment and compressive-fragment) by computed tomography according to our previous study. All patients were followed up at an average of 5.06 (range, 2.21–8.70) years. The Olerud-Molander Ankle Score (OMAS), EuroQol-5 Dimensions (EQ-5D) and American Orthopedic Foot and Ankle Society (AOFAS) score were recorded.ResultsSeventy-nine patients were included, and 7 patients were classified into the small-shell group, 52 patients into the single-fragment group and 20 patients into the multifragment group. Of all the patients, the average OMAS, EQ-5D and AOFAS scores were 85.9, 82.8 and 92.5, respectively. In the single-fragment group, patients who underwent surgical fixation in the posterior malleolus had significantly better scores (P = 0.037, 0.033 and 0.027). Among the patients with small fragments, the surgical fixation group also had higher OMAS (93.1 ± 7.5 vs. 83.5 ± 19.5, P = 0.042) and AOFAS scores (98.1 ± 3.1 vs. 91.0 ± 14.1, P = 0.028). The mean OMAS, EQ-5D and AOFAS scores were 85.5, 85.7 and 91.7, respectively, in patients with multiple fragments who underwent surgical fixation.ConclusionThis study shows that in fractures with a single fragment, surgical fixation of the posterior malleolar fragment led to a better prognosis in the midterm. All single fragments should be fixed regardless of size. Fixation of the posterior region in all single- and multi-fragments in posterior malleolar fractures led to satisfactory outcomes.Level of EvidenceLevel III, follow-up study.

Posterior Malleolar Fracture Assessment: An Independent Interobserver and Intraobserver Validation of Three Computed Tomography-Based Classifications.

Posterior malleolus fractures occur in up to 50% of all ankle fractures. Several classification systems exist for their characterization, especially under CT. However, those classifications do not report the level of agreement or do it incompletely. This study aims to independently assess three posterior malleolus fracture classifications (Haraguchi, Bartoníček/Rammelt, and Mason). This study was designed according to the Guidelines for Reporting Reliability and Agreement Studies. Ninety-four CT scans of patients with ankle fractures that had posterior malleolus fractures were included. Posterior malleolus fractures were assessed by six evaluators (three attending foot and ankle surgeons and three orthopaedic surgery residents) according to Haraguchi, Bartoníček/Rammelt, and Mason classifications. All images were reassessed by the same evaluators in a random sequence 3 weeks later. The kappa (k) coefficient was used to determine the interobserver and intraobserver agreement. Statistical significance was established using P < 0.05 with a 95% confidence interval (CI). The interobserver agreement was moderate for Haraguchi, Bartoníček/Rammelt, and Mason classifications with a global k value of 0.52 (95% CI, 0.43 to 0.60), 0.53 (95% CI, 0.46 to 0.61), and 0.54 (95% CI, 0.47 to 0.62), respectively. The intraobserver agreement was substantial for Haraguchi, Bartoníček/Rammelt, and Mason classifications, with an overall k value of 0.70 (95% CI, 0.64 to 0.74), 0.73 (95% CI, 0.68 to 0.78), and 0.73 (95% CI, 0.69 to 0.78), respectively. Interobserver and intraobserver agreement among orthopaedic surgeons and residents had no significant difference. The current classifications for posterior malleolus fractures showed a substantial intraobserver agreement. Nevertheless, the interobserver agreement obtained was just moderate for all classifications, independent of the level of expertise of the evaluators.

Impact of Posterior Malleolus Fixation on Clinical and Functional Results.

Clinical studies have shown that posterior malleolar fractures treated with a posterior buttress plate have improved outcomes compared to anterior-to-posterior screw fixation. The aim of this study was to evaluate the impact of posterior malleolus fixation on clinical and functional results. The patients with posterior malleolar fractures who were treated between January of 2014 and April of 2018 at our hospital were investigated retrospectively. Fifty-five patients included in the study were divided into three groups according to the fixation preferences of fractures (group I, posterior buttress plate; group II, anterior-to-posterior screw; and group III, nonfixated). The groups consisted of 20, nine, and 26 patients, respectively. These patients were analyzed according to demographic data, fixation preferences of fractures, mechanism of injury, hospitalization length of stay, surgical time, syndesmosis screw use, follow-up time, complications, Haraguchi fracture classification, van Dijk classification, American Orthopaedic Foot and Ankle Society score, and plantar pressure analysis. There were no statistically significant differences between the groups in terms of gender, operation side, injury mechanism, length of stay, anesthesia types, and syndesmotic screw usage. However, when the age, follow-up time, operation time, complications, Haraguchi classification, van Dijk classification, and American Orthopaedic Foot and Ankle Society scores were evaluated, statistically significant differences were observed between the groups. Plantar pressure analysis data showed that group I yielded balanced pressure distribution between both feet compared to the other study groups. The posterior buttress plating of posterior malleolar fractures yielded better clinical and functional outcomes compared to the anterior-to-posterior screw fixation and nonfixated groups.

Редкая травма лодыжки: клинический случай о переломе Мезоннева

Maisonneuve fracture is a rare and complex ankle fracture characterized by a triad of injuries, including a medial malleolar fracture, injury to the inferior tibiofibular syndesmotic complex, and a proximal fibula fracture. This case report presents the case of a 53-year-old female who sustained a Maisonneuve fracture following a fall on the stairs. Physical examination revealed tenderness and swelling in the left ankle, and radiographs confirmed fractures of the medial and posterior malleolus of the left ankle. Despite receiving conservative treatment in the form of a plaster cast, the patient subsequently presented to the hospital with severe pain in the left ankle and proximal fibula. Further imaging examinations confirmed a Maisonneuve fracture accompanied by a proximal fibula fracture, medial malleolar fracture, and posterior malleolar fracture. The patient underwent successful open reduction and internal fixation of the left ankle. This clinical case underscores the significance of a thorough examination and imaging to precisely diagnose rare and complex fractures such as the Maisonneuve fracture, which may be overlooked in clinical practice. Therefore, clinicians should be vigilant of the potential for a Maisonneuve fracture in patients with ankle injuries to ensure timely and appropriate treatment.Key words: Maisonneuve fracture, tibiofibular syndesmotic complex, proximal fibular fracture, rare ankle fracture, clinical case.

Risk Factors Associated With Worse Clinical Outcomes of Ankle Fractures Involving the Posterior Malleolus.

Ankle fractures involving the posterior malleolus (PM) tend to result in inferior clinical outcomes compared to other ankle fractures. However, it is unclear which specific risk factors and fracture characteristics are associated with negative outcomes in these fractures. The aim of this study was to identify risk factors for poor postoperative patient-reported outcomes in patients with fractures involving the PM. This retrospective cohort study included patients who sustained ankle fractures involving the PM between March 2016 and July 2020 and had preoperative computed tomography (CT) scans. In total, 122 patients were included for analysis. One patient (0.8%) had an isolated PM fracture, 19 (15.6%) had bimalleolar ankle fractures involving the PM, and 102 (83.6%) had trimalleolar fractures. Fracture characteristics including the Lauge-Hansen (LH) and Haraguchi classifications and posterior malleolar fragment size were collected from preoperative CT scans. Patient Reported Outcome Measurement Information System (PROMIS) scores were collected preoperatively and at a minimum of 1 year postoperatively. The association between various demographic and fracture characteristics with postoperative PROMIS scores was assessed. Involvement of more malleoli was associated with worse PROMIS Physical Function (P = .04), Global Physical Health (P = .04), and Global Mental Health (P < .001), and Depression scores (P = .001). Elevated BMI was also associated with worse PROMIS Physical Function (P = .0025), Pain Interference (P = .0013), and Global Physical Health (P = .012) scores. Time to surgery, fragment size, Haraguchi classification, and LH classification were not associated with PROMIS scores. In this cohort, we found that trimalleolar ankle fractures were associated with inferior PROMIS outcomes compared with bimalleolar ankle fractures involving the PM in multiple domains. Level III, retrospective cohort study.

Posterior versus lateral plating of lateral malleolus fractures using a posterolateral approach

Abstract Aim We compared the clinical outcomes of fixing lateral malleolus fractures with lateral or posterior plating in combined lateral and posterior malleolar ankle fractures. Methods We randomized thirty patients with ankle fractures involving the posterior and lateral malleoli into two groups. In group 1, we dissected laterally, raising a lateral skin and subcutaneous flap to allow lateral fixation of the lateral malleolus. In group 2, we did not raise the flap fixing the lateral malleolus posteriorly by deep dissection and retracting the peroneal tendons laterally. During the follow-up period, we assessed pain at six months and at the end of the follow-up, ankle range of motion, wound complications, reoperation rates, fracture union, implant failure, and foot and ankle disability index (FADI). Results The mean follow-up period was 24.33 months. The mean age of the included participants was 41.76 ± 7.3 years. The mean visual analogue score VAS score at six months follow-up was 2.13 ± 0.54 in group 1 and 3.6 ± 0.76 in group 2, which decreased to one in group 1 and two in group 2 at the end of follow-up. The mean FADI was 89.8 ± 3.76 in group 1 and 90.7 ± 2.45 in group 2. The reoperation rate was 6.6% in group 1 and 26.6% in group 2 Fixation of all posterior malleolus fractures was done in all patients, union was achieved with no complications. Conclusion There is no clinical difference between lateral and posterior plating of the lateral malleolus through the posterolateral approach.

Open fixation of the posterior malleolus increases the morbidity of trimalleolar ankle fracture fixation.

To assess the morbidity of open reduction internal fixation (ORIF) of posterior malleolus fractures (PMFs) in the setting of trimalleolar ankle fractures. A retrospective review of 79 trimalleolar ankle fractures was performed to identify need for syndesmotic fixation, blood loss, operative/tourniquet time, complications, and reoperations. Patients with PMF ORIF (n = 38) were compared to those with no fixation (n = 41). A subanalysis of patients with small PMFs (< 25%) was performed. The PMF ORIF group required less syndesmosis fixation (proportional difference (PD) - 44.6%, 95% confidence interval (CI) - 61.8 to - 23.0%), had more blood loss (MD 20ml, CI 0-40), longer operative times (MD 53.0min, CI 35.9-70.1), longer tourniquet times (MD 26min, CI 4-33), and had no difference in postoperative joint step-off or concentrically reduced joints. The PMF ORIF group had more postoperative complications (PD 26.9%, CI6.3-44.8%) and a trend for more reoperations (PD 13.6%,CI -3.4 to 29.6%). Wound complications were more common in the PMF ORIF group (PD 26.5%, CI 6.9-43.6%), resulting in 5 (16.1%) irrigation and debridement procedures. On analysis of patients with small PMFs (n = 42), PMF ORIF (n = 15) resulted in longer operative/tourniquet times and had no observed difference in postoperative joint step-off, concentrically reduced joints, need for syndesmotic fixation, blood loss, or complications/reoperations. PMF ORIF in the setting of trimalleolar ankle fractures was associated with increased operative/tourniquet times, blood loss, wound complications, and did not eliminate the need for syndesmosis fixation.

Prediction of distal tibial articular extension in tibial shaft fractures: both posterior malleolar fracture and non posterior malleolar fracture intra-articular extension

BackgroundMultiple authors have highlighted the increased incidence of occult posterior malleolar fractures (PMFs) with spiral tibial shaft fractures, although other reported associated risks of intra-articular extension have been limited. The aim of our study is to investigate both PMFs and non-PMFs intra-articular extensions associated with tibial diaphyseal fractures to try to determine any predictive factors.MethodsWe undertook a retrospective review of a prospectively collected database. The inclusion criteria for this study were any patient who had sustained a diaphyseal tibial fracture, who had undergone surgery during the study period and who had also undergone a CT scan in addition to plain radiographs. The study time period for this study was between 01/01/2013 and 9/11/2021.ResultsOut of 764 diaphyseal fractures identified, 442 met the inclusion criteria. A total of 107 patients had PMF extensions (24.21%), and a further 128 patients (28.96%) had intra-articular extensions that were not PMF’s. On multivariate analysis, spiral tibial fracture subtypes of the AO/OTA classification (OR 4.18, p < 0.001) and medial direction of tibial spiral from proximal to distal (OR 4.38, p < 0.001) were both significantly associated with PMF. Regarding intra-articular fractures, multivariate analysis showed significant associations with non-spiral (OR 4.83, p < 0.001) and distal (OR 15.32, p < 0.001) tibial fractures and fibular fractures that were oblique (OR 2.01, p = 0.019) and at the same level as tibia fracture (OR 1.83, p = 0.045) or no fracture of the fibular (OR 7.02, p < 0.001).ConclusionIn our study, distal tibial articular extension occurs in almost half of tibial shaft fractures. There are very few fracture patterns that are not associated with some type of intra-articular extension, and therefore, a low threshold for preoperative CT should be maintained.Level of evidence4.

The Management of Posterior Malleolus Fractures in Unstable Ankle Injuries: Where Do We Stand Now?

The evaluation and treatment of the posterior malleolus fracture in unstable ankle injuries remain a topic of controversy. The main objective of this systematic review was to examine the available literature and identifythe variables that affect the management of posterior malleolar fractures and how these are related to the outcomes. To that end, a systematic review was performed based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A comprehensive search of MEDLINE, Embase, and Cochrane Library was conducted. The search terms used were as follows: "posterior malleolar", "ankle fractures", "trimalleolar fractures", "ORIF", "surgery", "operative", and "conservative". The available studies were screened against the inclusion and exclusion criteria. Based on the review of the available literature, we have concluded that the size of the posterior malleolar fragment is not an accurate indicator, and clinicians should consider other factors such as fracture configuration and articular surface congruity. Also, the risk for the development of post-traumatic arthritis increases when the joint surface is not restored regardless of the surgical intervention and fragment size. The complications of posterior malleolus fractures necessitate evidence-based management. The assessment and the final treatment of these injuries in unstable ankle fractures should not be based on the traditional fragment-size parameters. Clinicians should assess the fracture configuration through imaging modalities and try to preserve the articular surface congruity so as to achieve optimal outcomes. Finally, more studies with high-level evidence are required in order to determine the most appropriate management pathway for these patients.

What Is the Rate of Displacement of Occult Posterior Malleolus Fractures in Nailed Tibial Shaft Fractures?

To describe the radiographic consequences of posterior malleolus fractures (PMF) present with tibial shaft fractures fixed with intramedullary nails. Retrospective cohort study. Level 1 trauma center. Seven hundred thirty-three patients with tibial shaft fractures. Intramedullary nail fixation and prophylactic articular fixation. Displacement of PMF with intramedullary nail insertion. Seven hundred thirty-three patients were identified with tibial shaft fractures treated with intramedullary nail fixation at a Level 1 trauma center without a uniform preoperative computed tomography protocol. One hundred thirty-three patients had an identifiable PMF appreciated on preoperative imaging. Of the 600 remaining patients without a known PMF, 29 had PMF identified after nail insertion: 24 patients with nondisplaced fractures that all healed radiographically at final follow-up, 3 patients had fractures <30% of the articular surface displaced 1-2 mm, and 2 patients had fractures >30% of the joint surface that displaced 1-2 mm. The incidence of radiographically observable PMF associated with tibial shaft fractures is high, even without a preoperative computed tomography screening protocol in place. In patients without an appreciable PMF on injury films, less than 1% (2/600) had displacement of a large, clinically significant PMF with nail placement. Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.