OBJECTIVE: Malalignment of distal tibia fractures can lead to malunion/nonunion or alter the limb mechanical axis which may cause arthritis. Proposed methods to decrease malalignment include fibular fixation or multiplanar interlocking screws, however these remain controversial. This study aimed to identify factors associated with malalignment in distal tibial fractures with associated fibular shaft fractures.
METHODS: A retrospective review was performed of distal tibia fractures with associated fibular shaft fractures treated with intramedullary nailing at two level one trauma centers between 2015 and 2019. Cases involving malalignment (> 5° of deviation from anatomic axis on either coronal/sagittal axis) on final follow-up (minimum three months postoperatively) were compared to those without malalignment with regard to demographics, fracture characteristics, intraoperative characteristics, and complications.
RESULTS: The rate of malalignment was 13%. On multivariate analysis, multiplanar distal interlocking screw fixation (odds ratio [OR], 0.18; 95% confidence interval [CI] 0.03-0.92) was associated with a decreased rate of final malalignment, while nail diameter > 10 mm was associated with a higher rate (OR, 4.05; 95% CI 1.25-13.11). Fibular fixation was not associated with malalignment.
CONCLUSIONS: Multiplanar distal interlocking screws may protect against malalignment. Fibula fixation does not appear associated with a decreased rate of malalignment in distal tibia fractures treated with intramedullary nails.
METHODS: III.

Ankle fractures represent up to 9% of all fractures, with an increased incidence in the elderly population. Among these fractures, isolated fractures of the lateral malleolus are the most common, representing 65-70% of all cases. The therapeutic decision-making primarily relies on the stability of the ankle ring, considering it stable if affected at one point and unstable if two or more points are affected. Surgical treatment focuses on restoring the length of the fibula, joint reconstruction, stabilising the syndesmosis, and providing a stable fixation. It is crucial to rule out associated injuries that may influence therapeutic management. This article reviews the evaluation and management of lateral malleolus fractures, proposes a decision-making algorithm, and examines several fibular fixation options.

Ankle fractures represent up to 9% of all fractures, with an increased incidence in the elderly population. Among these fractures, isolated fractures of the lateral malleolus are the most common, representing 65-70% of all cases. The therapeutic decision-making primarily relies on the stability of the ankle ring, considering it stable if affected at one point and unstable if two or more points are affected. Surgical treatment focuses on restoring the length of the fibula, joint reconstruction, stabilizing the syndesmosis, and providing a stable fixation. It is crucial to rule out associated injuries that may influence therapeutic management. This article reviews the evaluation and management of lateral malleolus fractures, proposes a decision-making algorithm, and examines several fibular fixation options.

BACKGROUND: Maisonneuve fracture is a specific type of severe ankle injury. To our current knowledge, once a Maisonneuve fracture is diagnosed, the surgery is always recommended for fear of sequelae from inaccurate joint reconstruction. However, in this case, we treated a Maisonneuve fracture with a short leg cast, and the 41-month follow-up showed a favorable outcome with no post-traumatic osteoarthritis, chronic pain, and instability. Therefore, this case provides evidence for the feasibility of conservative treatment of Maisonneuve fracture.
METHODS: A female patient in her early twenties sprained her left ankle while running, suffering regional pain, swelling, and limited mobility.
METHODS: We diagnosed a Maisonneuve fracture with superior fibular fracture and Volkmann tuberosity fracture, a slight separation of inferior tibiofibular syndesmosis (ITS).
METHODS: The patient rejected our surgical recommendations in favor of nonsurgical treatment, in addition to refusing immobilization of the knee. Consequently, we had to treat her with a short leg cast for 8 weeks and asked her to return for regular follow-up visits.
RESULTS: At the final follow-up, the radiography showed complete healing of proximal fibula fracture. The patient reported no discernible subjective differences between her bilateral ankles. The range of motion of the left ankle was measured at 22° of dorsiflexion and 40° of plantarflexion. Functional assessments using Olerud-Molander ankle scale and American Orthopedic Foot and Ankle Society Ankle-Hindfoot scale both scored 100 points. Additionally, the radiographic assessment classified arthritis as stage 0 according to Morrey-Wiedeman classification.
CONCLUSIONS: To avoid missing and misdiagnosing, the physical examination should always extend to 2 neighboring joints. Secondly, if a Maisonneuve fracture is suspected, further computed tomography scans, radiography, and magnetic resonance imaging can help to determine the stability of the ITS and the integrity of the lateral collateral ligaments before making therapeutic decisions. Finally, considering the lateral collateral ligaments may remain intact, we recommend stabilizing ITS by repairing the medial ligaments, which can be conducted arthroscopically and be more minimally invasive, providing an elastic fixation that aligns better with the biomechanics of the ITS which is characterized as a micro-mobile rather than fully fixed joint.

Pediatric ankle fractures are prevalent injuries that make up a notable portion of all periphyseal injuries. The Salter-Harris classification is the most popular classification about physeal and periepiphyseal injuries. Ogden expanded on this and described type 7 fractures which are completely intraepiphyseal and include propagation of the fracture from the articular surface through the epiphyseal cartilage and do not involve the physis. These injuries are common about the distal fibula in pediatric patients with supination-inversion type injuries. There are no specific guidelines or recommendations on treatment of these injuries in the literature. We present three cases of this injury pattern and describe our chosen management that leads each patient to full, painless ankle range of motion and return to all prior activities and sports without complication. Supination-inversion type pediatric ankle fractures are common injuries that all orthopaedic surgeons will encounter at some point throughout their practice or training. Recognizing fracture variants and understanding treatment options of pediatric ankle fractures are important for the orthopaedic community as a whole.

BACKGROUND Lateral malleolus fractures, typically from trauma, sports, or accidents, are common, with supination external rotation (SER) injuries being most prevalent. SER injuries involve complex joint mechanics and often necessitate surgical intervention for instability. This study compares intramedullary nail and plate fixation for fibula fractures in SER type IV ankle injuries, considering their biomechanical properties and influence on fracture healing. MATERIAL AND METHODS A prospective, randomized study was conducted between January 2021 and December 2021. A total of 81 patients with SER injuries were included in the study. Surgical procedures were performed using either intramedullary nails or plates. The following parameters were recorded and analyzed: postoperative complications, operation times, bone healing times, American Orthopaedic Foot & Ankle Society (AOFAS) scores, visual analog scale (VAS) scores for pain, and ankle range of motion. RESULTS Out of the 81 cases, 42 were treated with intramedullary nails, while 39 received plate fixation. Statistical analysis revealed a significantly lower rate of postoperative complications in the intramedullary nail group than in the the plate fixation group (9.52% vs 30.77%, P<0.0164). However, there were no significant differences between the 2 groups in terms of operation time, bone healing time, AOFAS scores, VAS scores, and functional evaluations (P>0.05). CONCLUSIONS Plate fixation and intramedullary nail fixation are effective techniques for treating fibula fractures in SER type IV injuries. However, intramedullary nail fixation demonstrates a lower rate of complications. Therefore, intramedullary nails may be preferable to plate fixation for the management of fibula fractures in SER type IV ankle injuries.

BACKGROUND: The standard of care for tibial shaft fractures in young children is nonoperative management, while in adults, operative treatment is considered the mainstay. There are no clear guidelines on preferred treatment for adolescents.
OBJECTIVE: This paper aims to 1) identify clinical and radiographic characteristics predictive of malalignment and 2) determine if treatment type affects malalignment risk.
METHODS: This retrospective cohort study identified patients aged 12 to 16 years old with a tibial shaft fracture at a Level 1 pediatric trauma center. The primary outcome of interest was malalignment, classified as meeting one or more of the following: >5° coronal angulation, >5° sagittal angulation, translation (cortical width or 100% displaced), and/or rotational deformity. Comparative analyses were done to identify risk factors for malalignment.
RESULTS: A total of 162 patients were included-initial treatment was \"planned nonoperative\" for 102 patients and \"planned operative\" for 60 patients. The malalignment rate was 34% in the planned nonoperative group versus 32% in the planned operative group. In a multivariate regression, older patients [odds ratio (OR)=-0.07, 95% CI: -0.13 to -0.01; P =0.024] and those with 100% initial displacement (OR=-0.35, 95% CI: -0.64 to -0.05; P =0.021) had decreased odds of malalignment, and having increased sagittal angulation (OR=0.02, 95% CI: 0.01-0.04; P =0.002) and a fibula fracture (OR=0.22, 95% CI: 0.03-0.41; P =0.023) increased the odds of malalignment. There was no difference in the rate of malalignment by initial treatment ( P =0.289). Having a planned nonoperative treatment (OR=22.7, 95% CI: 14.0-31.5; P <0.001) and having a fibula fracture (OR=8.52, 95% CI: 0.59-16.45; P =0.035) increased the time immobilized.
CONCLUSIONS: This study provides insight into factors affecting tibial shaft fracture alignment among patients aged 12 to 16 years. This study suggests that the risk of malalignment is higher among patients with increased initial sagittal angulation and concomitant fibula fractures, but the risk of malalignment is comparable in patients initially treated nonoperatively and operatively. Although healing parameters on average were similar, nonoperative treatment results in longer immobilization time and time for unrestricted weight bearing.
METHODS: Level III-retrospective comparative study.

METHODS: A 12-year-old adolescent boy presented with a proximal fibula fracture and lateral ankle dislocation consistent with a Maisonneuve fracture (MF) associated with a transsyndesmotic ankle dislocation. The dislocation was reduced under conscious sedation in the emergency department. Postreduction imaging studies demonstrated a Tillaux fracture. The patient underwent surgical stabilization of the Tillaux fragment and of the distal tibiofibular syndesmosis. At the 26-month follow-up, the patient remained active without restrictions.
CONCLUSIONS: Operative treatment of a concurrent MF, Tillaux fracture with lateral ankle dislocation, or a pediatric \"logsplitter\" injury resulted in satisfactory alignment and function of the ankle joint.

METHODS: - A 31yo female is involved in a fall while climbing on some wet rocks. She was brought into the emergency department and was found to have suffered a closed fracture of the right fibula with a deltoid ligament injury. Distal neurovascular exam was normal. She is otherwise unhurt. She had ORIF of her ankle injury and it has gone onto heal with good results. She comes back at 6 months and complains of vague pain over her lateral ankle and hardware with a normal physical exam. She wonders about hardware removal, (Figs. 1 and 2). PAST MEDICAL HISTORY: - previous history of breast reduction surgery and she has delivered one child vaginally. No chronic diseases and she takes no pills except the birth control pill. SOCIAL HISTORY: - married with one child and works as an administrative assistant for a manufacturing company; she is a social drinker and nonsmoker. Has a history of using some recreational drugs but none for 10 years. She is moderately active.

BACKGROUND: Indirect reduction of minimally invasive plate osteosynthesis (MIPO) can often result in delayed union in tibia fractures. This study evaluated several factors in MIPO in relation to bone union.
OBJECTIVE: We hypothesized that the fracture gap, plate - tibia distance, or working length would have a substantial effect on the tibia union rate.
METHODS: Forty-one patients with simple diaphyseal or distal metaphyseal tibia fractures who underwent internal fixation surgery using the MIPO technique were divided into two groups: patients with delayed union and patients without delayed union. Non-actionable factors involving AO/OTA classification, fibula fracture and actionable factors including postoperative fracture gap, plate - tibia distance, working length in relation to parameters of bone union were compared between the two groups. Also cumulative rates of bone union and risk factors of delayed union according to variables of interest were investigated.
RESULTS: AO/OTA classification, site of fibula fracture, postoperative fracture gap, working length, and bone union rate of the two groups significantly differed (p<0.05). The cumulative rate of bone union during 1-year follow-up according to 43A tibia fracture, distal fibula fracture, fracture gap, and working length significantly differed between the two groups (p<0.05). By univariate Cox proportional hazards model, 43A tibia fracture, distal fibula fracture, facture gap, and short working length were risk factors for delayed union (p<0.05).
CONCLUSIONS: Non-actionable factors involving AO/OTA classification, distal fibula fracture and actionable factors including postoperative fracture gap, working length were significant factors affecting bone union after MIPO. The present study indicated that small fracture gap and long working length during MIPO might facilitate bone healing in tibia fracture.
METHODS: IV; single-center retrospective cohort study.