Tibial pilon fractures: which method of treatment?

How Effective is Fibula Pro Tibia Plating in Treatment of Distal Tibial Fractures: A Pilot Study

Introduction

Despite recent advances, management of distal tibial fractures is challenging, with high rate of complications. Fibula pro tibia plating technique fixes fibula and tibia together, via laterally placed fibular plate without disturbing the tibial soft tissue sleeve. We contemplated this pilot study to assess effectiveness of fibula pro tibia plating in management of distal tibia fibula fractures.

Materials and Methods

A total of 30 patients with distal tibia fibula fractures with fracture line extending within 5cm from tibial plafond were managed with fibula pro tibia plating, with or without minimal articular fixation. Outcome evaluation was done by union, union time, alignment and functional outcome as assessed by AOFAS score.

Results

Mean age in the series was 39.4 years with male to female ratio of 3:2. Mean duration of surgery, blood loss and C arm exposure were 79 minutes (range 52 to 98min), 80ml (range 62 to 102ml) and 48 shoots (range 36 to 81 shoots), respectively. All fractures united in mean union time of 10.2 weeks (range 9 to 14 weeks) with acceptable alignment in all the patients except one. Mean AOFAS score was 86.3 (range 70 to 93) with 29 patients having good to excellent outcome. One patient had varus malunion and in one case infection was seen.

Conclusion

Fibula pro tibia plating can be successfully used to manage complex distal tibia fractures which leaves the soft tissue and periosteal sleeve undisturbed, thus avoiding wound related problems and leading to early union.

Should We Fix the Fibula in Tibial Plafond Fractures? A Meta-analysis Reviewing the Evidence Base for Fibula Open Reduction and Internal Fixation in Tibial Plafond Fractures

Open reduction and internal fixation are the standard of care to stabilize tibial plafond fractures. However, it remains uncertain as to whether fixation of the fibula affects the outcome. This study aimed to review the evidence base for comparable outcomes in tibial plafond fractures when undergoing open reduction and internal fixation of ipsilateral fibula fractures compared with open reduction and internal fixation of the tibia alone. A systematic review and meta-analysis of the literature was completed; 4 studies were included for analysis. This study demonstrated no statistically significant differences in the incidence of nonunion (p = .784) or mal-union (p = .416). There was a greater rate of removal of metalwork in the fibula operative group compared to the tibia alone group (p < .001). The current evidence demonstrates that open reduction and internal fixation of ipsilateral fibula fractures in tibial plafond fractures is not necessarily routinely indicated for all fractures.

Management of High-Energy Tibial Pilon Fractures

➤ Pilon fractures in the younger patient population are frequently high-energy, intra-articular injuries and are associated with devastating, long-term impacts on patient-reported outcomes and health-related quality of life, as well as high rates of persistent disability.➤ Judicious management of associated soft-tissue injury, including open fractures, is essential to minimizing complications. Optimizing medical comorbidities and negative social behaviors (e.g., smoking) should be addressed perioperatively.➤ Delayed internal fixation with interval temporizing external fixation represents the preferred technique for managing most high-energy pilon fractures presenting with characteristically substantial soft-tissue trauma. In some cases, surgeons elect to utilize circular fixation for these scenarios.➤ Although there have been treatment advances, the results have been generally poor, with high rates of posttraumatic arthritis, despite expert care.➤ Primary arthrodesis may be indicated in cases with severe articular cartilage injury that, in the opinion of the treating surgeon, is likely unsalvageable at the time of the index management.➤ The addition of intrawound vancomycin powder at the time of definitive fixation represents a low-cost prophylactic measure that appears to be effective in reducing gram-positive deep surgical site infections.

Gait analysis and clinical outcome in patients after pilon fracture surgery

BACKGROUND

In this study kinematic parameters, radiographic findings and PROM in pilon fractures after operative treatment were compared with healthy subjects.

METHODS

16 patients treated with osteosynthesis after pilon fracture underwent kinematic analysis with the OFM. Fractures were evaluated for post-operative step-off and gap on CT-scans and PROM were collected. Results were compared to 10 healthy persons.

RESULTS

Range of motion (ROM) crural was lower in the flexion/extension for pilon fractures (10.03 vs. 13.15, p = 0.017). The ROM in the inversion/eversion was low, but ROM in the abduction/adduction was higher. Correlations were found between flexion/extension and AO-classification (r = -0.357 p < 0.05), PROM score of the AOFAS (r = 0.445 p < 0.01), post-operative gap and step-off in the tibia plafond.

CONCLUSION

Pilon fractures showed decreased ROM between the hindfoot and tibia in the sagittal and transverse plane, but increased ROM in the frontal plane during push-off phase as compensatory kinetics. ROM showed significant correlations with PROM and intra-articular step-off and gap in the tibia plafond.

Can Laser-Assisted Indocyanine Green Angiography Be Used to Quantify Perfusion Changes During Staged Fixation of Pilon Fractures? A Pilot Study

OBJECTIVE

To quantify soft tissue perfusion changes in pilon fractures during staged treatment using laser-assisted indocyanine green angiography (LA-ICGA).

SETTING

Level 1 trauma center.

DESIGN

Prospective cohort study.

PATIENTS/PARTICIPANTS

Twelve patients with 12 pilon fractures participated in the study. Seven patients had OTA/AO classification of 43-C3, 3 had 43-C2, and 2 had 43-B2.

MAIN OUTCOME MEASURES

LA-ICGA was performed with the SPY fluorescence imaging platform. Analysis via ImageJ was used to generate a fractional area of perfusion (FAP) based on fluorescent intensity to objectively quantify soft tissue perfusion. Anterior, medial, and lateral measurements were performed at the time of initial external fixation (EF) application and then at the time of definitive fixation.

RESULTS

FAP within the region of interest was on average 64% medially, 61% laterally, and 62% anteriorly immediately before EF placement. Immediately before definitive open reduction internal fixation, fractional region of interest perfusion was on average 86% medially, 87% laterally, and 86% anteriorly. FAP increased on average 24% medially ( P = 0.0004), 26% laterally ( P = 0.001), and 19% anteriorly ( P = 0.002) from the time of initial EF to the time of definitive open reduction and internal fixation.

CONCLUSIONS

Quantitative improvement in soft tissue perfusion was identified through the course of staged surgical management in pilon fractures. LA-ICGA potentially may be used to determine appropriate timing for definitive surgical intervention based on the readiness of the soft tissue envelope. Ultimately, these findings may influence clinical outcomes with respect to choice of surgical approach, soft tissue management, surgical timing, and wound healing.

LEVEL OF EVIDENCE

Diagnostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Intra-articular distal tibial fractures cause a major burden to individual patients and also stresses the public health care system

BACKGROUND AND PURPOSE

Intra-articular distal tibial fractures are most commonly caused by high-energy trauma. Additional difficulties are related to accompanying soft-tissue injuries. The purpose of this study was to evaluate the consequences of different types of distal tibial fractures to the individual patient and to the public health care system.

PATIENTS AND METHODS

126 patients with operatively treated intra-articular distal tibial fracture were identified between 2012 and 2016. Thirty-one (25%) were open fractures. Acute treatment, timing of definitive surgery, total number of surgical procedures, complications, need for soft-tissue reconstructions, hospital stay, and number of follow-up visits were recorded related to AO/OTA fracture types.

RESULTS

112 patients (89%) were treated with a staged treatment protocol. Of these patients, 74 first received an external fixation device. The definitive fracture fixation was performed on average 8 days after the trauma. Soft-tissue flap reconstruction was needed in 19 patients (15%). Additionally, 7 patients required split-thickness skin grafting. Total hospital stay ranged from 2 to 87 days (median 14 days). The median ward treatment period was 12 days in B2-3 group, 13 days in C1-2 group, and 18 days in C3 group. The median of 2 (range 1-13) surgical procedures were performed.

INTERPRETATION

Intra-articular distal tibial fractures cause a major burden to individual patients and stresses the public health care system due to a frequent need for several surgical procedures because of soft-tissue injuries and complications. AO/OTA type C3 fractures had the greatest burden, as patients required several consecutive operations and prolonged hospital stays.

A Current Concepts Update in Pilon Fracture Management

A review of the existing literature, related to treatment options and management principles of pilon fractures, was performed, and its results are presented. Pilon fractures have a very diverse pattern, but there are general characteristics to help diagnose and plan therapy. The choice of therapy is highly dependent on the surrounding soft-tissue environment. Different methods of treatment, lack of standard management protocols, and the high risk of complications make this injury one of the biggest challenges that an orthopedic surgeon can face. This review focuses on the general aspects of the pilon fracture management as well as its complications and possible solutions.

A new surgical strategy for the treatment of tibial pilon fractures with MIPO facilitated by double reverse traction repositor

The present study aims to introduce a technique combining double reverse traction repositor (DRTR) with minimally invasive plate osteosynthesis (MIPO) in the surgical treatment of pilon fractures and to observe the efficiency of this approach during a short-term follow-up period. From January to December 2018, patients with pilon fractures who were treated by MIPO with DRTR were reviewed. The demographic and fracture characteristics, surgical data, and prognostic data of 24 patients were extracted. In all 24 patients, closed reduction was achieved with the MIPO technique, and excellent functional and radiological outcomes were observed. The average duration of surgery and intraoperative blood loss were 95.0 ± 14.2 min and 152.1 ± 52.1 ml, respectively. A mean of 16.0 ± 1.9 intraoperative fluoroscopies were conducted. At the 12-month follow-up evaluation, the average AOFAS score was 85.2 ± 5.1. Anatomic or good reduction was observed in 23 (95.8%) patients. The mean ranges of motion of dorsiflexion and plantarflexion were 11.0 ± 2.7 and 32.7 ± 11.1, respectively. Two patients with deep venous thrombosis and one patient with wound non-purulent exudate were noted. Additionally, the wounds healed after routine dressing change. No other complications, including skin necrosis or delayed, non-union or malunion, were observed. The new strategy combining DRTR with MIPO in the treatment of pilon fractures allowed excellent radiological and clinical outcomes and a low postoperative complication rate to be achieved in a short-term follow-up period. Further large sample and comparative studies should be conducted to validate our results.

Post-Operative Outcomes of Circular External Fixation in the Definitive Treatment of Tibial Plafond Fractures: A Systematic Review

Tibial plafond fractures (TPFs) are uncommon but potentially devastating injuries to the ankle. Operative treatments include internal and external fixation modalities. This article provides a systematic review of the clinical and functional outcomes of TPFs treated specifically with circular external fixation (CEF). A literature search of medical databases from inception to 13th November 2020 was performed. Original studies written in the English language reporting clinical, radiological, and functional outcome data of TPF treated with CEF were included. Patient demographics, fracture classification, open fractures, post-operative complications, clinical outcomes, radiological outcomes, and functional outcomes were collected. Quality and risk of bias were assessed using standardised scoring tools.In total, 16 studies were included. One prospective randomised study was identified. Collated data of 303 patients were analysed. The mean time to union was 21 weeks. Malunion occurred in 12.4%. The rate of deep infection was 4.8%, but no amputations were recorded. The risk of minor soft tissue infection (including pin-site infections) was 54%. Almost two-thirds achieved good-to-anatomic reduction radiologically. Approximately one-third reported excellent functional outcome scores. The quality of the studies was deemed satisfactory. A moderate risk of bias was acknowledged. This systemic review provides a summary of outcome data regarding CEF as a treatment for TPF. It highlights CEF as an acceptable treatment option with comparable results to that of internal fixation. Further higher-quality evidence is advised.

Management of Pilon Fractures-Current Concepts

Tibial pilon fractures were first described by Étienne Destot in 1911. He used the French word “pilon” (i.e., pestle), to describe the mechanical function of the distal tibia in the ankle joint. This term has further been used to portray the mechanism involved in tibial pilon fractures in which the distal tibia acts as a pestle with heavy axial forces over the talus basically causing the tibia to burst. Many different classification systems exist so far, with the AO Classification being the most commonly used classification in the clinical setting. Especially Type C fractures are extremely difficult to manage as the high energy involved in developing this type of injury frequently damages the soft tissue surrounding the fracture zone severely. Therefore, long -term outcome is often poor and correct initial management crucial. In the early years of this century treatment has evolved to a two–staged protocol, which nowadays is the gold standard of care. Additional methods of treating the soft tissue envelope are currently being investigated and have shown promising results for the future. The aim of this review is therefore to summarize protocols in managing these difficult fractures, review the literature on recent developments and therefore give surgeons a better understanding and ability to handle tibial pilon fractures.

Comparison of complications of early and delayed open reduction and internal fixation for treating pilon fracture: A protocol of systematic review and meta-analysis

BACKGROUND

Tibial Pilon fractures are severe fractures accompanied by soft tissue injury. Although open reduction and internal fixation (ORIF) are effective in treating Pilon fractures, there is a controversy over time to surgery due to reported postoperative complications. However, there is no systematic review evaluating the difference of postoperative complications between early and delayed ORIF for treating pilon fractures.

METHODS

Relevant literature written in English will be searched through PubMed, Cochrane Library, Embase, MEDLINE, and Web of Science. The study aims to compare the effects and complications of early and delayed ORIF for treating fresh pilon fractures in adult patients. The primary outcome will be infection rate, fracture union time, nonunion and malunion rate. And the secondary outcome will be metalwork removal, amputation, and ankle function grade. Two reviewers will independently assess the eligibility of the studies according to the pre-defined inclusion and exclusion criteria. A meta-analysis for the available data will be conducted using Revman 5.3. To measure effect size, odds ratios (ORs) and mean difference will be used for dichotomous and continuous data, respectively. Statistical heterogeneity will be explored. And a random-effects model or a fixed-effects will be used in pooled data on the basis of the existence or absence of heterogeneity. Subgroup analysis will be conducted to identify sources of heterogeneity and sensitivity analysis to test the results' robustness. We will assess the risk of bias by four different quality assessment tools according to the study design. Publication bias will be evaluated by funnel plot. The study data will be stored in the Open Science Framework website.

PROSPERO REGISTRATION NUMBER

CRD42020207465.

Fusion versus fixation in complex comminuted C3-type tibial pilon fractures: a systematic review

BACKGROUND

Comminuted intra-articular tibial pilon fractures can be challenging to manage, with high revision rates and poor functional outcomes. This study reviewed [1] treatment, complications, and clinical outcomes in studies of complex comminuted tibial pilon fractures (type AO43-C3); and [2] primary ankle arthrodesis as a management option for these types of complex injuries.

METHODS

A systematic literature search was performed on PubMed from 1990 to 2020 to determine complications and outcomes after staged fracture fixation and primary ankle joint arthrodesis for comminuted C3-type tibial pilon fractures. The search was conducted in compliance with the PRISMA guidelines, using the following MeSH terms: "tibial pilon"/"pilon fracture"/"plafond fracture"/"distal tibial"/"43-C3"/"ankle fracture"/"ankle fusion"/"primary ankle arthrodesis"/"pilon fracture staged"/"pilon external fixation" and "pilon open reduction internal fixation." Inclusion criteria were restricted to original articles in English language on adult patients ≥18 years of age. Eligibility criteria for retrieved publications were determined using a "PICO" approach (population, intervention/exposure, comparison, outcomes). Weighted analysis was used to compare treatment groups on time to definitive treatment, follow-up time, range of motion, fracture classification, and complications.

RESULTS

The systematic literature review using the defined MeSH terms yielded 72 original articles. Of these, 13 articles met the eligibility criteria based on the PICO statements, of which 8 publications investigated the outcomes of a staged fixation approach in 308 cumulative patients, and 5 articles focused on primary ankle arthrodesis in 69 cumulative patients. For staged treatment, the mean wound complication rate was 14.6%, and the malunion/nonunion rate was 9.9%. For primary arthrodesis, the mean wound complication rate was 2.9%, and the malunion/nonunion rate was 2.9%. After risk stratification for fracture type and severity, the small cumulative cohort of patients included in the primary arthrodesis publications did not provide sufficient power to determine a clinically relevant difference in complications and long-term patient outcomes compared to the staged surgical fixation group.

CONCLUSIONS

At present, there is insufficient evidence in the published literature to provide guidance towards consideration of ankle arthrodesis for complex comminuted C3-type tibial pilon fractures, compared to the standard treatment by staged surgical fracture fixation.

[Retrospective study of 50 cases of tibial pilon fractures in adults at the Department of Orthopedics of the University Hospital Center Habib Bourguiba, Sfax, Tunisia]

Tibial pilon fractures are polymorphic fractures posing therapeutic and prognostic challenges. The purpose of this study is to examine the epidemiological profile of these fractures and to assess our findings from an anatomical and functional point of view. We collected data fom 50 medical records of patients treated for tibial pilon fractures and monitored over the period 2004-2013 at the Orthopedic-Trauma Department of the Habib Bourguiba University Hospital in Sfax. Functional outcomes were assessed using the Ankle-Hindfoot score. Radiological findings were used to determine fracture healing. Treatment was based on internal osteosynthesis in 30 cases, external fixation in 11 cases and on a combination of both techniques in 9 cases. At the end of this study, functional outcomes were good and very good in 36 cases. Thirty cases of fracture healing were reported, with 18 cases of vicious callus and two cases of pseudosteoarthritis. Therapeutic management of tibial pilon fractures is difficult in some cases. Solid osteosynthesis with anatomical reduction is the only therapeutic option to secure a satisfactory functional outcome.

Fine wire versus locking plate fixation of type C pilon fractures

PURPOSE

The successful treatment of high energy pilon fractures (AO-OTA 43C) can be achieved with a fine wire circular external fixator (CEF) or locking plate construct (ORIF). There is no consensus on whether ORIF or CEF achieves superior outcomes, and both have unique complications. We report early to mid-term outcomes comparing type C pilon fractures treated with ORIF and CEF.

METHODS

An 8-year retrospective review was performed on all patients who underwent ORIF or CEF for closed 43C fractures in a tertiary orthoplastic centre. Outcomes included unplanned return to theatre prior to union including superficial and deep surgical site infections (SSI), non-union and post-traumatic osteoarthritis (PTOA) needing fusion.

RESULTS

76 patients underwent ORIF and 59 patients had CEF, with a mean follow-up of 2 years. 7/76 (9.2%) patients who underwent ORIF had a superficial SSI; 2 patients (2.6%) required a formal debridement for deep SSI; none required a flap. 13/59 patients (22%) had a pin track infection following CEF. With the numbers available, there was no significant difference in rates of unplanned return to theatre before bone healing (ORIF 7/76, 9.2%, CEF 9/59, 15.2%, p = 0.7), rates of mal-union (1.7% CEF, 3.9% ORIF, p = 0.7), deep SSI (p = 0.9), time to union (ORIF: 8.1 months v CEF 10.8 months, p = 0.51), non-union (p = 0.24) and fusion for PTOA (ORIF: 6/76, CEF 2/59, p = 0.46).

CONCLUSION

With correct patient selection, both ORIF and CEF offer equivalent and favourable early to mid-term outcomes with regard to deep SSI, non-union, mal-union and PTOA. Although statistically insignificant, ORIF with more than 2 plates carries a risk of superficial and deep SSI, whilst CEF is associated with a 22% pin track infection rate. These unique risks must be discussed with the patient as part of a shared decision-making process.

Outcomes and Complications With Treatment of Open Tibial Plafond Fractures With Circular External Fixator

BACKGROUND

Open tibial plafond fractures (Orthopaedic Trauma Association and AO Foundation [OTA/AO] 43) are associated with severe complications, including deep infection (closed fractures, 20%; open fractures, 30%), amputation (3%-14%), and nonunion (up to 25%). Circular external fixators (CEFs) can minimize soft tissue injury. This study aimed to report the rate of union and occurrence of severe complications in patients with open tibial plafond fractures treated with CEFs.

METHODS

A retrospective review of case series was conducted at 3 level I trauma centers. The study included patients older than 18 years with open tibial plafond fractures treated with CEFs. The reported outcomes included union rate, deep infection, operative complications, and limb alignment. The radiographic measurements of anatomic alignment were obtained. Fifty-two patients were included in the study.

RESULTS

The primary union rate was 79%. No deep infection occurred in the majority (92%) of patients. No patient required amputation of the affected limb or free flap coverage.

CONCLUSION

Definitive fixation of open tibial plafond fractures with CEFs avoided severe soft tissue complications but resulted in variation in final radiographic alignment.

LEVEL OF EVIDENCE

Level IV, case series.

Factors associated with perioperative opioid demand in lower extremity fractures: Does consumption vary by anatomic location?

INTRODUCTION

Perioperative opioid pain management protocols should reflect anticipated patient need. Fracture location and external fixation may be related to post-operative pain. The purpose of this study is to evaluate the impact of fracture location, articular injury, and pre-operative external fixation, and articular injury on perioperative opioid demand following definitive fixation.

METHODS

1-month pre-operative to 1-year post-discharge opioid demand in oxycodone 5-mg equivalents in 23,441 patients undergoing fracture fixation of the femoral shaft through ankle between 2007 and 2017 was evaluated using a national database. Opioid demand was compiled over several timeframes: 1-month pre-op to 90-days post-discharge, 3 months post-discharge to 1-year post-discharge, and 1-month pre-op to 1-year post-discharge. Multivariable main effects linear and logistic regression models were constructed to evaluate the increased opioids filled, increased opioid prescriptions, and odds of refills in these timeframes with adjustment for fracture location, external fixator placement, and baseline patient and injury characteristics.

RESULTS

Lower extremity anatomic location and pre-operative external fixation were significantly associated with increased 1-month pre-op to 1-year post-discharge opioid filling (17.6-54.7 additional oxycodone 5-mg equivalents, all p<0.05) and number of filled prescriptions (0.28-0.54 additional prescriptions, all p<0.05). Pilon fractures and pre-operative external fixation, specifically, were associated with increased odds of two or more opioid prescriptions within the 1-month pre-op to 1-year post-discharge time frame (1.25-1.32 odds ratio, all p<0.05).

DISCUSSION

Fracture location and pre-operative external fixator placement predicted perioperative opioid demand. Articular zone (pilon, plateau, and distal femur) fracture fixation was associated with the largest increases in opioid demand after lower extremity fracture fixation. Patients with these injuries may be at highest risk of extensive opioid consumption.

Clinical and Functional Outcomes in Patients with Distal Tibial Fracture Treated by Circular External Fixation: A Retrospective Cohort Study

AIMS AND OBJECTIVES

To examine clinical and functional outcomes in patients with intra- and extra-articular distal tibial fractures treated definitively by Ilizarov fixation.

MATERIALS AND METHODS

Patients with tibial fractures extending within 1 Müller square of the ankle joint were identified from our Ilizarov database over a 5-year period. Data on treatment and outcome were assembled from this database and supplemented by a review of patient records. General measures of health-related quality of life and limb-specific functional outcome scores were recorded. Adverse events were documented according to Paley's classification.

RESULTS

One hundred and sixty-eight patients with 169 fractures were identified, 28% were open and 63% intra-articular. One hundred and sixty-five (98%) of the fractures united, two following bone grafting in their original frames, at a median of 166.5 days (range 104-537). Three patients with nonunions united with further treatment. One patient (an end-stage diabetic) elected to undergo amputation following multiple early complications during treatment. Closed fractures united more rapidly than open (median 157 vs 183 days; p = 0.005) and true Pilon (43C3) fractures took longer to unite than other fractures (median 157 vs 177 days; p = 0.01).Sixty-seven percent of patients completed functional outcome scores. Sixty-two percent reported good or excellent ankle scores at more than 6 months post frame removal, 38% fair and 10% poor. Patients with intra-articular fractures reported significantly worse ankle scores than those with extra-articular injuries. General measures of health-related quality of life (EuroQol-5D) revealed significant ongoing effects despite good clinical outcomes.

CONCLUSION

This study demonstrates a high union and low serious complication rate, suggesting that external ring fixation is a safe and effective treatment for these injuries.

HOW TO CITE THIS ARTICLE

Giannoudis VP, Ewins E, Taylor DM, et al. Clinical and Functional Outcomes in Patients with Distal Tibial Fracture Treated by Circular External Fixation: A Retrospective Cohort Study. Strategies Trauma Limb Reconstr 2021;16(2):86-95.

Ankle arthrodesis using the Taylor Spatial Frame for the treatment of infection, extruded talus and complex pilon fractures

INTRODUCTION

The treatment of complex pilon fractures and talus fracture-dislocations present several challenges, like avoiding infection, achieving union, management of bone loss and function preservation.

METHODS

Retrospective cohort review of fourteen patients who underwent ankle arthrodesis (AA) using the Taylor Spatial Frame (TSF) after pilon and talus fracture-dislocations. Ten tibiocalcaneal (TC) and four tibiotalar (TT) fusions were performed. Eleven of these cases were Gustilo III open fractures. Seven cases involved an open extruded talus. Four cases had established infections. There was a mean of 2.7 (range 0 - 8) operations prior to AA using TSF. The primary objective was to determine infection and union rates. Patient-reported outcomes (Short Form 36, SF-36) and functional outcomes (Ankle Osteoarthritis Score, AOS) were the secondary measures.

RESULTS

Eradication and prevention of deep infection was achieved in all cases. Radiological union was achieved at a mean of 9 months (range 5 - 17). Solid AA was achieved in 12 of 14 cases using the TSF. Two TC fusions required a hindfoot fusion nail to achieve union. Eleven cases had concurrent bone transport, mean of 63 mm (range 33 - 180). Mean time of TSF treatment was 11.1 months (range 6 - 16). One case required delayed amputation. Eight patients were able to fully weight bear unaided after the treatment. Mean SF-36 was 65 (range 35 -100). Mean AOS was 36.5 (range 6.6 - 77.5) with 69.3% of scores graded good to excellent. Mean total number of operations was 5.9 (range 2 - 10). Minimum follow up time was 12 months (range 12 - 56).

CONCLUSION

AA using TSF can be considered for complex pilon fractures and extruded talus. It has shown to be effective in achieving a solid fusion and infection eradication. While using the TSF in isolation, non-union must be suspected in TC fusions, absence of radiological signs of healing, massive bone loss, and possibly not using bone graft. Patients must be aware that while treatment of these injuries will be prolonged and carries the risk of many potential complications, it provides a good alternative to amputation.

A multicentre, randomized, parallel group, superiority study to compare the clinical effectiveness and cost-effectiveness of external frame versus internal locking plate for complete articular pilon fracture fixation in adults

AIMS

A pilon fracture is a severe ankle joint injury caused by high-energy trauma, typically affecting men of working age. Although relatively uncommon (5% to 7% of all tibial fractures), this injury causes among the worst functional and health outcomes of any skeletal injury, with a high risk of serious complications and long-term disability, and with devastating consequences on patients' quality of life and financial prospects. Robust evidence to guide treatment is currently lacking. This study aims to evaluate the clinical and cost-effectiveness of two surgical interventions that are most commonly used to treat pilon fractures.

METHODS

A randomized controlled trial (RCT) of 334 adult patients diagnosed with a closed type C pilon fracture will be conducted. Internal locking plate fixation will be compared with external frame fixation. The primary outcome and endpoint will be the Disability Rating Index (a patient self-reported assessment of physical disability) at 12 months. This will also be measured at baseline, three, six, and 24 months after randomization. Secondary outcomes include the Olerud and Molander Ankle Score (OMAS), the five-level EuroQol five-dimenison score (EQ-5D-5L), complications (including bone healing), resource use, work impact, and patient treatment preference. The acceptability of the treatments and study design to patients and health care professionals will be explored through qualitative methods.

DISCUSSION

The two treatments being compared are the most commonly used for this injury, however there is uncertainty over which is most clinically and cost-effective. The Articular Pilon Fracture (ACTIVE) Trial is a sufficiently powered and rigorously designed study to inform clinical decisions for the treatment of adults with this injury. Cite this article: Bone Jt Open 2021;2(3):150-163.

A fibular notch approach for the treatment of ankle fractures involving the distal tibial plafond

Background

Although efficacy is related to many factors, the surgical approach is one of the most important intervention factors for complex ankle fractures. Ankle fractures involving the distal tibial plafond frequently present a surgical challenge in choosing which incisions will be best for surgical treatment. Here, we present an innovative fibular notch approach for the treatment of some specific ankle fractures and present a series of patients with either functional or radiographic outcomes.

Methods

Twenty-two patients with distal tibial plafond fractures with concomitant fibular and distal tibiofibular syndesmosis injuries were treated through a fibular notch approach in this retrospective study. The details of the surgical technique were reviewed from the operative notes. Relevant data were reviewed from the medical records. The quality of fractures and syndesmosis reduction was examined using CT scans, and lateral stability of the ankle was assessed by physical examination and stress radiographs. The American Orthopedic Foot and Ankle Society Ankle-Hindfoot Scale (AOFAS) score was implemented for clinical functional assessment.

Results

All surgeries were successfully performed via the fibular notch approach as the primary approach with excellent intraoperative visualization. Postoperative radiography revealed satisfying restoration of all fractures and syndesmosis. All fractures healed with an average time of 17.3 ± 3.6 weeks. Mild posttraumatic osteoarthritis (PTOA) was present in 4 patients. The average AOFAS score was 88.8 at the last follow-up.

Conclusions

The fibular notch approach is a safe and reliable approach for the treatment of specific ankle fractures involving the distal tibial plafond. This approach provides excellent direct visualization of the fragments and articular surface without significantly increasing iatrogenic injuries. Satisfactory radiographic and clinical results were observed, and further clinical and anatomical studies are recommended to ascertain the feasibility of this approach in the treatment of complex distal tibial fractures.

Surgical Management of Distal Tibia Fracture: Towards An Outcome-based Treatment Algorithm

Introduction:

Distal tibia fractures are frequently associated with an extensive soft tissue injury which then leads to a higher risk of complications such as infection, non-union and eventually poor overall outcome. The purpose of this study is to measure the outcome of distal tibia fractures treated with internal fixation, external fixator or Ilizarov external fixator(IEF). We aim to propose an algorithm for management of distal tibia fractures by evaluating the treatment options, outcomes and risk factors present.

Material and Methods:

This study is a cross-sectional study of all distal tibia fractures treated surgically in Tengku Ampuan Rahimah Hospital, Klang from 1st January 2016 till 30th June 2018. Patient records were reviewed to analyse the outcomes of surgical treatment and risk factors associated with it.

Results:

Ninety-one patients were included with a mean age of 41.5 years (SD = 16.4). Thirty-nine cases (42.9%) were open fractures. Thirty-eight patients (41.8%) were treated with internal fixation, 27 patients (29.7%) were treated with IEF and 26 patients (28.6%) were treated with an external fixator. Among open fractures cases, no significant finding can be concluded when comparing each surgical option and its outcome, although one option was seen better than the other in a particular outcome. Initial skeletal traction or temporary spanning external fixator in close fractures reduced the risk of mal-alignment (p value=0.001). Internal fixation is seen superior to IEF and external fixator in close fractures in term of articular surface reduction (p value = 0.043) and risk of mal-alignment (p value = 0.007).

Conclusion:

There is no single method of fixation that is ideal for all pilon fractures and suitable for all patients. This proposed algorithm can help surgeons in deciding treatment strategies in the challenging management of distal tibia fractures to reduce associated complications.

Fracture blisters: pathophysiology and management

Open fractures are considered an orthopaedic emergency due to the severe soft tissue disruption that might potentially lead to devastating complications. On the other hand, closed fractures, and especially those resulting from high-energy mechanisms, are also often accompanied by severe soft tissue trauma. Soft tissue envelope compromise can have a detrimental effect on the final outcome of the patients. Fracture blisters in particular, develop as a sign of significant local tissue trauma and appear in a time period between 6 to 72 hours post-injury. They can delay the definitive fracture treatment for a considerable amount of time and at the same time they also increase the risk for post-operative wound complications. Awareness of fracture blisters pathophysiology and their management options are crucial for orthopaedic surgeons, in order to achieve a favorable clinical outcome. In the herein study we present a concise synopsis of the pathophysiology pathways and management options of fracture blisters.

Two-Stage Surgical Procedure in Intra-articular Distal Tibiofibular Fractures with Soft Tissue Injury: in Which Stage Should the Fibular Plate be Applied at Initial Surgery?

Introduction:

The selection of the stage where fibular plate was performed in two-stage surgery of the intra-articular distal tibiofibular fractures with soft tissue injury is still controversial. The aim of the study was to compare the complications, radiological and functional outcomes between the patients who had fibular plate at initial or second phase during surgical management of such fractures.

Materials and Methods:

In this study, medical records of 47 patients who underwent a two-stage surgical procedure for intra-articular distal tibia fractures accompanying soft tissue injury were retrospectively examined. Delta frame was applied in all cases within 24 hours following admission to the emergency department in accordance with AO principles. Those cases where fibular plate was applied during the initial stage and the second stage were classified as Group 1 and Group 2 in order to compare recorded data between the two groups.

Results:

According to the results of the study, there were 25 cases in Group 1 and 22 cases in Group 2 in which fibular plate was applied at the first stage and the second stage, respectively. The mean follow-up was found as 27.7±7.0 months in Group 1 and 28.2±6.2 months in Group 2 (p=0.778). No difference was found between the two groups in terms of the age, sex, hospital stay, the time between two surgical procedures, tibiofibular angle and AOFAS scoring (p>0.05).These two groups were also similar in mechanism of injury, Denise-Weber or AO classification, rates of tibiofibular malalignment on post-operative CT, fibular rotation, intra-articular tibial step-off, tibial varus-valgus duration of union, rate of infection, fibular angulation and the presence of the flap/graft/debridement (p>0.05).

Conclusion:

In conclusion, two-stage surgical procedure in intra-articular distal tibiofibular fractures may be an effective method decreasing soft tissue complications. The timing of the open reduction and internal fixation of the fibula at different stages may not necessarily have an impact on the success of the post-operative tibial reduction, the total duration of surgery, syndesmosis malalignment or soft tissue complications.

Influence of the TGF-β Superfamily on Osteoclasts/Osteoblasts Balance in Physiological and Pathological Bone Conditions

The balance between bone forming cells (osteoblasts/osteocytes) and bone resorbing cells (osteoclasts) plays a crucial role in tissue homeostasis and bone repair. Several hormones, cytokines, and growth factors-in particular the members of the TGF-β superfamily such as the bone morphogenetic proteins-not only regulate the proliferation, differentiation, and functioning of these cells, but also coordinate the communication between them to ensure an appropriate response. Therefore, this review focuses on TGF-β superfamily and its influence on bone formation and repair, through the regulation of osteoclastogenesis, osteogenic differentiation of stem cells, and osteoblasts/osteoclasts balance. After introducing the main types of bone cells, their differentiation and cooperation during bone remodeling and fracture healing processes are discussed. Then, the TGF-β superfamily, its signaling via canonical and non-canonical pathways, as well as its regulation by Wnt/Notch or microRNAs are described and discussed. Its important role in bone homeostasis, repair, or disease is also highlighted. Finally, the clinical therapeutic uses of members of the TGF-β superfamily and their associated complications are debated.

Post-operative outcomes of open reduction and internal fixation versus circular external fixation in treatment of tibial plafond fractures: A systematic review and meta-analysis

INTRODUCTION

Tibial plafond fractures (TPF) are complex injuries often resulting in poor outcomes. Combination of articular impaction, metaphysealcomminution and soft-tissue injury results in a significant treatment challenge. The aim of this study was to conduct a systematic review and meta-analysis to compare post-operative complications and functional outcomes of open reduction and internal fixation (ORIF) versus circular external fixation (CEF) for treatment of TPF.

METHODS

A comprehensive search of PubMed/MEDLINE, Embase, Scopus and Cochrane library was undertaken. All studies published in English language comparing ORIF with CEF for treatment of TPF were included.

RESULTS

5 comparative studies with 239 fractures met the inclusion criteria. Meta-analysis showed no significant difference in rates of non-union, malunion, superficial infection, deep infection, and secondary arthrodesis between the two treatment groups. Significantly higher rate of unplanned metalwork removal (RR 5.68, 95% CI 1.13 to 28.55, p = 0.04) and lower rate of post-traumatic arthritis (RR 0.48, 95% CI 0.30 to 0.78, p = 0.003) were found in patients that underwent ORIF. 1 study showed significantly lower functional outcomes scores with CEF (p< 0.05), whereas 3 studies found comparable functional outcomes between the two treatment groups. Overall, there was a preference in treating more severe injuries with CEF.

CONCLUSION

CEF and ORIF are both acceptable treatment options for surgical management of TPF, with comparable post-operative complication rates and functional outcomes. This study highlights paucity of high-quality evidence regarding the optimal fixation method for TPF.

Three-dimensional computed tomography reconstruction improves the reliability of tibial pilon fracture classification and preoperative surgical planning

PURPOSE

In the present study, we aimed to evaluate the impact of two-dimensional multi-planar computed tomography (2D-MP-CT) scans and three-dimensional surface rendering computed tomography reconstruction (3D-SR-CT) on the inter- and intra-observer reliability of four commonly used classification systems for tibial pilon fractures, and on the reliability and validity of surgical treatment planning for fracture fixation.

METHODS

Four observers evaluated computed tomography images of 35 cases with pilon fractures according to the classifications of Rüedi and Allgöwer, AO/OTA, Topliss, and Tang, and recommended a surgical treatment plan, including the surgical approach, implant position, and need for bone graft augmentation. Fractures were first evaluated using 2D-MP-CT, followed by 3D-SR-CT. We calculated the Kappa values for the correlation between the fracture classifications, types of surgical approaches, implant positions, and bone graft recommendations by the observers. Furthermore, we assessed the correlation between the treatment plans recommended by the observers and the actual surgical procedure performed.

RESULTS

All classifications showed poor inter-observer reliability and moderate intra-observer reliability with 2D-MP-CT scans. The inter-observer reliability of the Rüedi and Allgöwer, AO/OTA, and Tang classifications improved to moderate, whereas the intra-observer reliability of the AO/OTA classification improved to good with additional 3D-SR-CT. The correlation between the suggested and the actually performed surgical approaches was poor with 2D-MP-CT, but improved to moderate with 3D-SR-CT. The suggested plate positions showed a moderate correlation with the actually performed plating; although the correlation improved significantly, it remained moderate with 3D-SR-CT.

CONCLUSION

The use of 3D-SR-CT reconstruction can improve the reliability of the Rüedi and Allgöwer, AO/OTA, and Tang classifications. Furthermore, three-dimensional imaging enables a more valid planning of the surgical approach and implant position.

Minimally invasive medial plate osteosynthesis in tibial pilon fractures: Longterm functional and radiological outcomes

OBJECTIVE

The aim of this study was to evaluate the long-term follow-up and functional and radiological outcomes of minimally invasive medial plate osteosynthesis in distal tibia fractures.

METHODS

From January 2011 to November 2015, we reviewed the medical records of 60 patients with 62 tibia fractures (41 men and 19 women; mean age: 45.3±14.9 years) who were treated with open reduction and internal fixation for distal tibia pilon fractures. The mean follow-up time after surgery was 42.7±4.6 months. Union time, coronal plan deformity, complication rates and AOFAS and Olerud-Molander functional outcome scores were evaluated.

RESULTS

According to the AO/OTA classification, there were thirty four (54.8%) type 43-A fracture, eight (12.9%) type 43-B fractures, twenty (32.3%) type 43-C fractures. The average time for fracture union was 16.1 weeks. The mean AOFAS score was 86.6±9.1. The mean Olerud-Molander score was 85.6±9.8. There were four patients (6.5%) with a varus of less than 5°, two patients (3.2%) with a valgus of less than 5°, 39 patients (62.9%) with recurvatum (34 of them less than 5°; five of them less than 10°), and 14 patients (22.6%) with procurvatum (12 of them less than 5°; two of them less than 10°). The AOFAS and Olerud-Molander scores in the smoker and diabetic patients were significantly lower than the non-smoker (p=0.002; p=0.005) and non-diabetic patients (p=0.022, p=0.002). The duration of union was significantly higher in both diabetic (p=0.025) and smoker patients (p=0.041). There was no association between the fracture type and the presence of varus, valgus, recurvatum and rotation deformity. The AOFAS score, Olerud-Molander score and plantar-flexion were significantly higher in type A fractures than in type C fractures (p=0.021; p=0.030, and p=0.033, respectively). AOFAS score, Olerud-Molander score, plantar-flexion value did not differ between type B and type C fractures. There was no significant difference among the dorsi-flexion (p=0.211), the follow-up time (p=0.531) and duration of union (p=0.908) of type A, type B and type C fractures. Three patients with open fracture had delayed wound healing. One patient developed skin necrosis. They were treated by local wound care.

CONCLUSION

Minimally invasive medial plate osteosynthesis is a reliable method of treatment for tibial pilon fractures. This technique provides a high fracture healing rate and satisfying functional outcome with minimal wound healing complications. Sagittal plan deformity remains a common complication with minimally invasive medial plate osteosynthesis.

LEVEL OF EVIDENCE

Level IV, Therapeutic Study.

Intra-Operative 3-Dimensional Imaging (O-arm) in Foot and Ankle Trauma Surgery: Report of 2 Cases and Review of the Literature

Background:

Intraoperative two-dimensional (2D) fluoroscopy is the standard imaging modality available to orthopaedic surgeons worldwide. It is well-accepted, however, multiplanar 3 dimensional (3D) CT scanning is superior to 2D imaging for visualising joint surfaces and is now a fundamental feature of the pre-operative planning of intra-articular fractures.

Objective:

We present two cases in which the use of 3D intraoperative imaging and the O-arm® (Medtronic, Minneapolis, USA) led to immediate intraoperative revision to optimise fixation and articular congruity. A review of the current literature is also provided.

Methods:

During the trial period of the O-arm at our major trauma centre, intra-operative imaging was used in the lower limb trauma setting. The O-arm was used intra-operatively in a comminuted pilon fracture and a displaced talus fracture. We recorded all the intra-operative events, including quality of reduction, implant positioning and operation time. Each patient was followed-up for 12 months post-operation and was finally assessed with x-rays and the AOFAS score.

Results:

In both the cases, either fracture reduction or the implant position/usage that was observed with 2D fluoroscopy was revised following a 3D intra-operative scan. No postoperative complications were noted and the healing process was uneventful. X-rays at the final follow-up were excellent and acceptable for the talus and pilon fracture, respectively, with corresponding clinical results and AOFAS score.

Conclusion:

Although frequently used in spinal surgery, to the best of our knowledge, the use of intra-operative 3D techniques in lower limb trauma is sparse and sporadically reported. We present our cases in which the most current innovative imaging techniques influenced intra-operative outcomes without compromising patient safety. We feel that this is a real example of how innovation can positively influence patient care.

Treatment of a Scientifically Neglected Ankle Injury: The Isolated Medial Malleolar Fracture. A Systematic Review

Isolated medial malleolar fractures are frequently encountered injuries. Literature regarding their treatment, though, is scarce and contradicting. The aim of this systematic review is to compare surgical and conservative treatment of isolated medial malleolar fractures considering complication rates and functional outcomes. PubMed, Embase, Cochrane, and CINAHL were searched for this review. Articles from 1980 or later, written in English, French, German, or Dutch, reporting any outcome of 10 or more isolated medial malleolar fractures in skeletally mature patients were included. Study quality was assessed using the Methodological Index for Non Randomized Studies (MINORS) instrument. Eighteen studies were included involving 2566 isolated medial malleolar fractures, which showed a mean (± SD) MINORS score of 8 ± 2. Mean nonunion rate was 1.7% after surgical treatment and 3.5% after conservative treatment. Overall, comparable functional outcomes were found after both treatment methods. Only 2 of the included studies reported the exact amount of fracture displacement. One study-comparing surgical and conservative treatment-showed similar functional outcomes for 1- and 2-mm displaced isolated medial malleolar fractures, and the other, a nonunion rate of 3.5% and a good mean functional outcome in 57 conservatively treated isolated medial malleolar fractures with a mean displacement of 3.8 mm. The available evidence is scarce and of low quality but suggests that conservative treatment of isolated medial malleolar fractures displaced ≤2 mm is safe. No study exists that compares surgical and conservative treatment in isolated medial malleolar fractures displaced >2 mm. Therefore, further research is needed. Until then, the eventual choice of treatment for isolated medial malleolar fractures displaced >2 mm, might be mainly dependent on the patients' characteristics and demands.

Ankle joint reconstruction by circular frame external fixator for a severely comminuted and contaminated open tibial pilon fracture (AO 43-C3.3). Case report

A severely comminuted and contaminated open tibial pilon fracture is one of the most challenging fractures we face. Although nowadays conducting multiple operations over various stages is a common treatment option taking into account the possibility of soft tissue damage, a gold standard protocol for severe pilon fractures has not yet been established. This case concerns a 56-year-old gentleman who suffered a severely comminuted and contaminated Gustilo 3b open tibial pilon fracture (AO 43C3.3) that was successfully treated using a circular frame external fixator without flap. Two years six months after the injury, there were no indications of any skin conditions at the site of the open wound, the range of ankle motion had been maintained and independent walking was possible. The score under the JSSF (Japanese Society of Surgery of the foot) ankle/hind foot scale was 81. This indicates that use of a circular frame external fixator is a useful treatment method in the event of a severe open pilon fracture where there is a large osteochondral bone defect.

Efficacy of Pie-Crusting Technique on Soft Tissues in Distal Tibia and Fibula Fractures

Distal tibia and fibula fractures are challenging injuries to treat as evidenced by the high rates of wound complications because of vulnerable soft tissue coverage. The aim of this study was to examine the effect on soft tissue complications of the pie-crusting technique when applied between 2 incisions in distal tibia and fibula fractures treated with open reduction and internal fixation. We reviewed 34 patients with distal tibia and fibula fractures treated between September 2014 and March 2017. The pie-crusting technique was performed during wound closure in 16 (47.06%) fractures (group 1) and classic wound closure was done in 18 (52.94%) fractures (group 2). The primary outcome was evaluated as the presence or absence of soft tissue complications such as superficial skin necrosis, deep skin necrosis, and deep infection. The mean age was 50.44 ± 13.51 (range 23 to 65) years in group 1 and 51.67 ± 14.49 (range 18 to 68) years in group 2. The mean follow-up time was 27.35 ± 9.02 (range 16 to 46) months. The mean surgery time after injury was 5.88 ± 3.5 (range 1 to 14) days in group 1 and 7.32 ± 4.25 (range 1 to 16) days in group 2. No soft tissue complications were seen in any patient in group 1. Five (27.77%) occurrences of superficial skin necrosis were observed in group 2. In 2 (11.11%) patients in group 2, deep necrosis and wound dehiscence occurred, and subsequent deep infection developed in 1 (5.55%) of these patients. The overall complication rate was higher in group 2 (p = .005). We believe that the pie-crusting technique is beneficial for wound closure in distal tibia and fibula fractures, because it reduces the tension of the skin and allows leakage of subcutaneous fluids.

Tibial pilon fractures treated with hybrid external fixator: analysis of 75 cases

INTRODUCTION

The treatment of tibial pilon fractures is a surgical challenge due to the particular anatomical and vascular characteristics of this area, and the severity of the injury that can compromise soft tissues. Nowadays there is no gold-standard treatment for these fractures.

MATERIALS AND METHODS

We reviewed 75 patients with tibial pilon fracture type C (AO classification) treated with hybrid external fixation (Stryker TenXor^®). The surgical technique was reported. We evaluated clinical (Tornetta's score, VAS score, range of motion) and radiographic outcomes.

RESULTS

In 71 cases, the first surgical treatment was definitive. Instead, in four cases, it was necessary a second surgical procedure to achieve fracture healing. We obtained 44% excellent, 40% good, 7% discrete, and 9% bad results. We found a 30% of superficial infections of the pin site, resolved with oral antibiotic treatment (amoxicillin and clavulanic acid). We never had deep infections, no neurovascular injury, and no cases of secondary amputation. Although not statistically significant, we noticed a correlation between longer recovery times and trauma severity, with slower recovery in open or grade III fractures or when associated with other fractures.

CONCLUSIONS

According to the recent literature, we think that the best treatment for non-articular fracture is the internal osteosynthesis within 6 h or after 6 days from trauma. In articular fractures, the elective treatment is the two-step management. In complicated articular fractures (Tscherne > 2, open, comminuted type III) is highly indicated the external fixation combined with minimal internal synthesis.

A systematic review and meta-analysis of functional outcomes and complications following external fixation or open reduction internal fixation for distal intra-articular tibial fractures: an update

PURPOSE

To conduct a systematic review and meta-analysis comparing physical function and complications following DIATF surgery with external fixation (EF) or open reduction internal fixation (ORIF).

METHOD

A search was conducted using PubMed, Embase, Cochrane CENTRAL, Open Grey and Orthopaedic Proceedings. Studies with a level of evidence of I-III on patients (≥ 18 years) with DIATFs operated on with either EF or ORIF were included. A total of 3814 studies were identified. The Cochrane Risk of Bias Tool for randomised controlled trials and the ROBINS-I tool for nonrandomised studies were used to assess risk of bias.

RESULTS

Nine studies with 478 patients, 271 ORIF and 197 EF met the inclusion criteria. The mean follow-up ranged from 12 to 38 months. The meta-analysis showed a higher incidence of superficial wound infections (RR = 2.94, 95% CI 1.62-5.34, p = 0.0004) and malunions (RR = 2.62, 95% CI 1.27-5.43, p = 0.009) in the EF group compared to the ORIF group. Also worse physical function was associated with the EF group. However, the overall evidence was low.

CONCLUSION

This systematic review is the first to report on physical function following DIATF surgery. In general, decreased physical function was reported. The meta-analysis showed lower incidence of superficial wound infection and malunion rates in the ORIF group. Heterogeneity was low. In conclusion, this review reports lower complication rates following ORIF for DIATF. The overall evidence was limited, and therefore, the authors cannot recommend ORIF to be superior to EF treatment for DIATF. More multi-centre studies with larger sample sizes are needed to assess long-term physical function and complications following DIATF surgery.

LEVEL OF EVIDENCE

Level 1.

A safe technique for insertion of heel wires for hindfoot external fixation frames

Aims

Anatomical atlases document classical safe corridors for the placement of transosseous fine wires through the calcaneum during circular frame external fixation. During this process, the posterior tibial neurovascular bundle (PTNVB) is placed at risk, though this has not been previously quantified. We describe a cadaveric study to investigate a safe technique for posterolateral to anteromedial fine wire insertion through the body of the calcaneum.

Materials and Methods

A total of 20 embalmed cadaveric lower limbs were divided into two groups. Wires were inserted using two possible insertion points and at varying angles. In Group A, wires were inserted one-third along a line between the point of the heel and the tip of the lateral malleolus while in Group B, wires were inserted halfway along this line. Standard dissection techniques identified the structures at risk and the distance of wires from neurovascular structures was measured. The results from 19 limbs were subject to analysis.

Results

In Group A, no wires pierced the PTNVB. Wires were inserted a median 22.3 mm (range 4.7 to 39.6) from the PTNVB; two wires (4%) passed within 5 mm. In Group B, 24 (46%) wires passed within 5 mm of the PTNVB, with 11 wires piercing it. The median distance of wires from the PTNVB was 5.5 mm (range 0 to 30). A Mann–Whitney U test showed that this was significantly closer than in Group A (Hodges–Lehmann shift, 14.06 mm; 95% confidence interval (CI) 10.52 to 16.88; p < 0.0001). In Group B, with an increased angle of insertion there was greater risk to the PTNVB (rs = -0.80; p < 0.01).

Conclusion

Insertion of wires using an entry point one-third along a line from the point of the heel to the tip of the lateral malleolus (Group A) appears to be the safer technique. An insertion angle of up to 30° to the coronal plane can be used without significant risk to the PTNVB. Insertion of wires halfway along a line from the point of the heel to the tip of the lateral malleolus (Group B) carried a significantly higher risk of injury to neurovascular structures and, if necessary, an angle of insertion parallel to the coronal plane should be used. Cite this article: Bone Joint J 2018;100-B:1054–9.

Complete Reduction for Pilon Fracture Can Make Complete Failure

The surgical management of distal intra-articular comminuted fracture of the tibia (pilon fracture) is difficult because complications frequently develop. The minimally invasive plate osteosynthesis technique is generally accepted for this type of fracture. In this study, complications developed after open reduction and internal fixation using multiple miniplates for accurate reduction of small fracture fragments. Therefore, when we use this technique, we need to pay attention to the development of complications such as nonunion, avascular necrosis, and osteomyelitis by the disruption of both endosteal blood supply by fracture and periosteal blood supply during approach or reduction.

Articular Incongruity in the Lower Extremity: How Much Is Too Much?

Intraarticular fractures carry a significant risk for posttraumatic osteoarthritis, and this risk varies across different joint surfaces of the lower extremity. These differences are likely due to the anatomic and biomechanical specifics of each joint surface. High-quality human studies are lacking to delineate the threshold articular incongruity that significantly increases risk for posttraumatic osteoarthritis and diminished clinical outcomes for many joint surfaces. Even with anatomic reduction of the articular surface, close attention must be paid to mechanical axis and joint stability to optimize outcomes.

Medium-Long-Term Radiographic and Clinical Outcomes after Surgical Treatment of Intra-Articular Tibial Pilon Fractures by Three Different Techniques

Introduction

The goal of this retrospective, observational, case series study was to evaluate the medium-long-term clinical and radiographic results of the three most common surgical osteosynthesis techniques used for the treatment of articular tibial pilon fractures: ORIF, MIPO, and EF.

Materials and Methods

A consecutive series of patients with articular pilon fractures who underwent surgery at our institution were enrolled in this study. Fractures were classified according to the Müller AO classification system. Overall outcomes took the following into account: radiographic quality of reduction, evaluated using Ovadia and Beals' criteria; clinical assessment, evaluated using the AOFAS questionnaire; and general health, evaluated with the SF36-v2 Health Survey.

Results

A total of 94 articular pilon fractures (34 type 43-B and 60 43-C) were evaluated with a mean follow-up of 56.34 months (range 33–101). The techniques used were ORIF, MIPO, and EF in 63 (67%), 17 (18.9%), and 14 cases (14.1%), respectively. According to Ovadia and Beals' criteria, good, fair, and poor results were reported in 61 (64.89%), 26 (27.66%), and 7 (7.45%) cases, respectively. The mean AOFAS score was 82.41 for MIPO, 79.83 for ORIF, and 50.57 for EF, respectively. Thirty-nine patients (41.49%) presented early and/or late complications.

Conclusion

Satisfactory outcomes using the three different techniques were reported. In particular, the radiographic outcomes were inversely proportional to the fracture comminutions and statistically different between internal and external osteosynthesis, but comparable between ORIF and MIPO techniques. On the other hand, the clinical outcomes were closely related to the soft tissue conditions and the anatomical reconstruction of the joint.

Injury mechanism, fracture characteristics and clinical treatment of pilon fracture with intact fibula-A retrospective study of 23 pilon fractures

OBJECTIVE

The effect of intact fibula on pilon fracture is not completely elucidated. We retrospectively analysed pilon fractures with intact fibula at our hospital over a 4 year period to understand the injury mechanism, fracture characteristics, treatment strategy and prognosis of this fracture.

METHODS

Pilon fracture patients with intact fibula treated in our hospital from January 2010 to December 2014 were observed. OA/ATO fracture type, Ruedi-Allgower classification and fracture characteristics were summarised. The following data were collected from the charts: operative time, operative approach, fixation, fracture healing time, ankle joint Mazur scores, Burwell-Charnley fracture reduction scores and postoperative complications.

RESULTS

Twenty-two patients were followed up with a mean follow-up time of 17.6 months (10-27 months). The examination results showed the existence of distal tibiofibular syndesmosis injuries, medial malleolus, posterior malleolar, and anterior tibial fractures, and talus-fibula relationship changes, which accounted for 65.2%, 69.3%, 73.9%, 100% and 26.1%, respectively. 19 cases underwent internal fixation, with an average operation time of 108 min. The mean fracture healing time was 6.74 months. The Mazur ankle score showed excellent and good ratings of 86.9%. The Burwell-Charnley fracture reduction score had good and fair ratings of 95.7%. Skin infection occurred in two cases.

CONCLUSION

Pilon fracture with intact fibula is mostly caused by medium-low energy injury when the ankle is at neutral or varus position. Multi-part fractures commonly occur at the distal tibial articular surface because the energy is concentrated on the tibia. In general, one single anterior approach can complete open reduction and internal fixation operation with satisfactory clinical outcomes in most cases.

Evaluation of functional outcome of pilon fractures managed with limited internal fixation and external fixation: A prospective clinical study

INTRODUCTION

The management of pilon fractures is controversial primarily due to the high rate of complications irrespective of the mode of treatment. Limited internal fixation with external fixation is associated with minimal soft tissue handling. This may reduce the chances of wound dehiscence and infection. This study was designed to evaluate the functional and clinical outcomes in patients treated with limited internal fixation combined with external fixation in pilon fractures.

MATERIAL AND METHODS

This study was conducted as a prospective clinical study on 56 skeletally mature patients with closed fractures with poor skin condition, and with open grade 1 and grade 2 distal tibial intra-articular fractures. All patients were treated with combined limited internal fixation and ankle spanning external fixation.

RESULTS

All fractures in this series united with an average time period of union of 18.3weeks (ranging from 13 weeks to 30 weeks). There was no non-union in any case. There was malunion in 4 cases, varus malunion (>5 degree) in 2 cases and recurvatum in another 2 cases). Excellent to good functional results were observed in 88% cases based on the modified Ovadia and Beals score. The mean ankle dorsiflexion and planter flexion movements were 10.2±5.3 degrees and 27.4±7.2 degrees respectively. infections occurred in 6 patients which included 4 pin tract infections and 2 superficial wound infection, all 6 healed after removal of pin tract and with oral antibiotics.

CONCLUSION

The technique of combined external fixation with internal fixation is safe and effective management option for intra-articular distal tibial fractures.

Pilon fractures: A new classification system based on CT-scan

Actually, pilon fractures are classified according to AO and Ruedi Allgower classification systems based on X-rays. These classifications are less reproducible and do not provide necessary information for proper surgical planning. Aim of the study is to (1) propose a new classification system based on CT scan; (2) to check the prognostic value of this classification and (3) to evaluate its reliability and (4) reproducibility. We retrospectively reviewed 71 cases of pilon fracture. All fractures were classified according to AO, Ruedi Allgower and new proposed classification system by 5 surgeons. Clinical and radiographic evaluation were performed at a mean follow-up of 36 months. Cohen's K value was calculated in order to evaluate the interobserver and intraobserver agreement. Sixty-four of 71 fractures healed. Average AOFAS score was 91,7±7,8 in the Type I of new classification proposed, 87,7±7,8 in the Type II, 82±18,6 in type III, and 67,2±20,9 in type IV. Using the AO classification system the average K weighted value among the five reviewers was 0,51; using Ruedi Allgower classification it was 0,50 and using the new classification system it was 0,88 (p<0.0005). This study demonstrated that the new classification system is prognostic, reliable and reproducible. Moreover it provides a new treatment-oriented classification for this challenging fracture which affect the quality of life of the patients more than chronic diseases like diabetes and coronaropathy or pelvic fractures.

Two Stage Minimally Invasive Method with Locking Plate Application on Distal Tibia Fractures - Our Experience

INTRODUCTION:

In the past distal tibia fractures, including intraarticular fractures, frequently led to poor functional outcomes. The Ruedi-Allgower four steps open method, and later the Patterson and Sirkin recommendations for delayed operative treatment has made a drastic advancement in the treatment of these fractures. The two-stage minimally-invasive protocol using locking plate fixation proved a historical turning point, improving functional results to the highest levels compared to all other methods.

AIM:

To present the superior results of the two-stage minimally-invasive method using locking plate fixation, making this a historic step forward in treating distal tibia fractures.

MATERIAL AND METHODS:

A prospective longitudinal study, collecting data from Traumatology-Clinic in the 2014-2016 periods, available for nine-month follow-up. Twenty-three patients were finally included in the study.

RESULTS:

In analysing the data collected, we focused our attention on the final functional outcomes as indicated by dorsiflexion nine months after injury and also according to the AOFAS Ankle-Hindfoot Scale. Results were excellent with no or minimal consequences. Where complications were present, these were benign and did not require further surgery.

CONCLUSION:

We believe this modern method for the treatment of distal tibia fractures should be applied routinely and considered as the gold standard in this domain.

Intra-articular fractures of the distal tibia: Current concepts of management

Results of the treatment of intra-articular fractures of the distal tibia have improved significantly during the last two decades.Recognition of the role of soft tissues has led to the development of a staged treatment strategy. At the first stage, joint-bridging external fixation and fibular fixation are performed. This leads to partial reduction of the distal tibial fracture and allows time for the healing of soft tissues and detailed surgical planning.Definitive open reduction and internal fixation of the tibial fracture is performed at a second stage, when the condition of the soft tissues is safe. The preferred surgical approach(es) is chosen based on the fracture morphology as determined from standard radiographic views and computed tomography.Meticulous atraumatic soft-tissue handling and the use of modern fixation techniques for the metaphyseal component such as minimally invasive plate osteosynthesis further facilitate healing. Cite this article: EFORT Open Rev 2017;2:352-361. DOI: 10.1302/2058-5241.2.150047.

[Treatment strategy and planning for pilon fractures]

BACKGROUND

Pilon fractures are mainly severe and prognostically serious injuries with a high rate of relevant soft tissue involvement. The adequate decision making and choice of treatment in the early phase of trauma are of paramount importance for the final outcome. This essentially encompasses the management of the soft tissue damage, the surgical planning and the differentiated selection of procedures.

GOALS/MATERIAL AND METHODS

Most concepts of staged treatment nowadays offer a wide range of options which are integrated into expert-based algorithms. The aim of the present analysis was to display the strategy variations for the treatment of pilon fractures taking into account the advantages and disadvantages of the corresponding treatment concepts.

RESULTS

A staged procedure including primary closed reduction employing ligamentotaxis and fixation of the joints of the hindfoot via tibiocalcaneal metatarsal fixation offers a safe basis for consecutive imaging and the selection of specific approaches for definitive reconstruction. A simultaneous reconstruction and fixation of the fibula during the primary intervention are generally not recommended in order to avoid any limitations for subsequent reconstructive procedures. A time frame for definitive reconstruction covers a period of up to 3 weeks after trauma and allows a detailed planning considering the individual dynamics of the soft tissue situation and any logistic requirements. For the choice of the definitive treatment concept a wide range of procedures and implants are available. There are also valid concepts for primary treatment of defined fracture constellations while primary arthrodesis represents a solution in cases of major destruction of the joint surface.

DISCUSSION AND CONCLUSION

Knowledge of the multiple procedural variations for pilon fracture treatment creates the basis to optimize the treatment modalities and to take into account individual parameters of the fracture.

Quality of life and prognostic factors after intra-articular tibial pilon fracture

BACKGROUND

Intra-articular tibial plafond fractures are a challenge for the surgeon with generally poor functional outcomes. The purpose was to assess the impact of this injury on patient quality of life (QOL), as well as analyzed the predictor factors.

METHODS

Retrospective study of 47 patients with mean age of 44.4 (range 18-79) years. Patients were also invited for new clinical and radiological assessments. QOL was evaluated by the Short Form-36 questionnaire and compared to the standard in the age-matched general population. Olerud-Molander ankle score (OMAS) was used to assess function. Digital radiographs were evaluated for linear and angular measurements.

RESULTS

The mean follow-up at last visit was 5.3 (range, 2-10) years. Sequelae were present in 20 patients, mainly including chronic pain (8) and arthrosis (10). Articular step-off at least 2mm was present in 20 patients had, articular gap greater than 2mm in 13, and malalignment in 5. Worse reduction was obtained with external fixation. QOL was significant lower than age-matched general population (p=0.000). Main prognostic factors of worse SF36 were fracture severity, reduction quality and arthrosis. A strong significant relationship was found between SF36-physical and OMAS scores (p=0.000).

CONCLUSION

Intra-articular tibial plafond fracture had a dramatic impact on QOL. Among the predictors of unsuccessful outcome, the reduction quality was the only modifiable factor by the surgeon. The OMAS had a predictive value on the prognosis of QOL.

Clinical efficacy and safety of limited internal fixation combined with external fixation for Pilon fracture: A systematic review and meta-analysis

PURPOSE

To compare the clinical efficacy and complications of limited internal fixation combined with external fixation (LIFEF) and open reduction and internal fixation (ORIF) in the treatment of Pilon fracture.

METHODS

We searched databases including Pubmed, Embase, Web of science, Cochrane Library and China Biology Medicine disc for the studies comparing clinical efficacy and complications of LIFEF and ORIF in the treatment of Pilon fracture. The clinical efficacy was evaluated by the rate of nonunion, malunion/delayed union and the excellent/good rate assessed by Mazur ankle score. The complications including infections and arthritis symptoms after surgery were also investigated.

RESULTS

Nine trials including 498 pilon fractures of 494 patients were identified. The meta-analysis found no significant differences in nonunion rate (RR = 1.60, 95% CI: 0.66 to 3.86, p = 0.30), and the excellent/good rate (RR = 0.95, 95% CI: 0.86 to 1.04, p = 0.28) between LIFEF group and ORIF group. For assessment of infections, there were significant differences in the rate of deep infection (RR = 2.18, 95% CI: 1.34 to 3.55, p = 0.002), and the rate of arthritis (RR = 1.26, 95% CI: 1.03 to 1.53, p = 0.02) between LIFEF group and ORIF group.

CONCLUSION

LIFEF has similar effect as ORIF in the treatment of pilon fractures, however, LIFEF group has significantly higher risk of complications than ORIF group does. So LIFEF is not recommended in the treatment of pilon fracture.

High-energy pilon fractures management: State of the art

High-energy pilon fractures are challenging injuries. Multiple options are described for the definitive surgical management of these fractures, but there is no level I evidence for optimal management. The current management and recommendations for treatment will be reviewed in this article.

Anatomical reduction of the fracture, restoration of joint congruence and reconstruction of the posterior column with a correct limb axis minimising the soft-tissue insult are the key points to a good outcome when treating pilon fractures.

Even when these goals are achieved, there is no guarantee that results will be acceptable in the mid-term due to the frequent progression to post-traumatic arthritis.

In high-energy fractures with soft-tissue compromise, a staged treatment is generally accepted as the best way to take care of these devastating fractures and is considered a local ‘damage control’ strategy.

The axial cuts from the CT scan images are essential in order to define the location of the main fracture line, the fracture pattern (sagittal or coronal) and the number of fragments. All of this information is crucial for pre-operative planning, incision placement and articular surface reduction.

No single method of fixation is ideal for all pilon fractures, or suitable for all patients. Definitive decision making is mostly dependent on the fracture pattern, condition of the soft-tissues, the patient’s profile and surgical expertise.

Cite this article: Tomás-Hernández J. High-energy pilon fractures management: state of the art. EFORT Open Rev 2016;1:354-361. DOI: 10.1302/2058-5241.1.000016.

Mid-Term Results of Minimally Invasive Plate Osteosynthesis and Circular External Fixation in the Treatment of Complex Distal Tibia Fractures

BACKGROUND

The treatment of pilon tibia fractures is challenging. Anatomical reduction of the joint surface is essential. Excessive soft-tissue dissection may interfere with the blood supply and can result in nonunion. We sought to compare the outcomes of distal tibia fractures treated with medial locking plates versus circular external fixators.

METHODS

We retrospectively evaluated 41 consecutive patients with closed pilon tibia fractures treated with either minimally invasive locking plate osteosynthesis (n = 21) or external fixation (EF) (n = 20). According to the Ruedi and Allgower classification, 23 fractures were type B and 18 were type C. Soft-tissue injury was evaluated according to the Oestern and Tscherne classification. Time to fracture union, complications, and functional outcomes were assessed annually for 3 years with the American Orthopaedic Foot and Ankle Society (AOFAS) ankle score.

RESULTS

Mean ± SD values in the plate group were as follows: age, 42.4 ± 14 years; union time, 19.4 ± 2.89 weeks (range, 12-26 weeks); and AOFAS ankle scores, 86.4 ± 2.06, 79.5 ± 1.03, and 77.9 ± 0.80 at 1, 2, and 3 years, respectively. Four patients in the plate group needed secondary bone grafting during follow-up. In the EF group (mean ± SD age, 40.7 ± 12.3 years), all of the patients achieved union without secondary bone grafting at a mean ± SD of 22.1 ± 1.7 weeks (range, 18-24 weeks). In the EF group, mean ± SD AOFAS ankle scores were 86.6 ± 1.69, 82.1 ± 0.77, and 79.7 ± 1.06 at 1, 2, and 3 years, respectively. There were no major complications. However, there were soft-tissue infections over the medial malleolus in five patients in the plate group and grade 1-2 pin-tract infections in 13 patients and grade 3 pin-tract infections in one patient in the EF group. Post-traumatic arthritis was detected in eight plate group patients and seven EF group patients.

CONCLUSIONS

Minimally invasive plating and circular EF methods have favorable union rates with fewer complications.

Bone Mass Distribution of the Distal Tibia in Normal, Osteopenic, and Osteoporotic Conditions: An Ex Vivo Assessment Using HR-pQCT, DXA, and Computational Modelling

Osteoporosis leads to bone loss and structural deterioration, which increase the risk of fractures. The aim of this study was to characterize the three-dimensional (3D) bone mass distributions of the distal tibia in normal, osteopenic, and osteoporotic conditions. High-resolution peripheral quantitative computed tomography (HR-pQCT) of the 33 % of the distal tibia and local dual-energy X-ray absorptiometry were applied to 53 intact, fresh-frozen tibiae. The HR-pQCTs were graded to assign local T-scores and merged into three equally sized average normal, osteopenic, and osteoporotic surface models. Volumetric bone mineral density (vBMD) was determined using categorized T-scores, volumetric visualization, and virtual bore probes at the dia-, meta-, and epiphyseal sites (T-DIA, T-META, and T-EPI). We observed a distinct 3D bone mass distribution that was gradually uninfluenced by T-score categories. T-DIA was characterized by the lowest bone mass located in the medullary cavity and a wide homogenous cortex containing the maximum vBMD. The T-META showed decreased cortical thickness and maximal vBMD. At the T-EPI, the relatively low vBMD of the mostly trabecular bone was similar to the maximal cortical vBMD in this sub-region. Four trabecular regions of low bone mass were identified in the recesses. The bone content gradually decreased at all sites, whereas the pattern of bone mass distribution remained essentially unchanged, with the exception of disproportionate losses at T-DIA, T-META, and T-EPI that consistently showed increased endocortical, intracortical, and trabecular bone loss. Extra information can be obtained from the specific pattern of bone mass distribution, potential disproportionate bone losses, and method used.

Hybrid external fixation in the treatment of tibial pilon fractures: A retrospective analysis of 162 fractures

OBJECTIVES

To determine the efficacy of hybrid external fixation in the treatment of tibial pilon fractures.

DESIGN

Retrospective, multicentre study.

PATIENTS/PARTICIPANTS

Adult patients with tibial pilon fractures treated with hybrid external fixation.

INTERVENTION

Fracture reduction with ligamentotaxis and fixation with XCaliber hybrid external fixator.

MAIN OUTCOME MEASUREMENTS

Fracture union, complications, functional outcome (Mazur Ankle Score).

RESULTS

Union was obtained in 159 fractures at an average of 125days; there were three delayed unions and three non-unions. The most frequent complication was superficial pin-track infections (48), all of which responded to local wound care and antibiotics. There were no deep infections and no DVT. Only one fracture had loss of reduction that required frame revision. The overall functional scores were 91 (excellent) for AO/OTA type A fractures, 89 (good) for type B fractures, and 75 (satisfactory) for type C fractures.

CONCLUSIONS

Hybrid external fixation is an effective method of stabilising tibial pilon fractures, particularly those with marked comminution. The minimally-invasive technique and stable fixation enable early mobilisation, with good functional results and minimal complications.

LEVEL OF EVIDENCE

Level IV Case series.