radio radial fractures

PURPOSE: The proximal radio-ulnar joint allows supination and pronation of the forearm and the humeroradial joint allows flexion and extension movements at the elbow joint. Although the proximal end of the radius is less common than other fractures, it is more common nowadays due to the prolongation of life expectancy, increased incidence of osteoporosis. There have been reports in the literature that success has not been achieved due to the lack of anatomical fit of the prosthesis. Knowledge of the morphometric features of the proximal end of the radius is important for the design of anatomically and biomechanically appropriate prostheses...

Objective:  This study evaluated sociodemographic and radiographic features of patients with distal radial fractures treated at a trauma hospital in southern Brazil, comparing those treated by hand surgery specialists (group 1) and non-specialists (group 2). Methods:  This study consists of a retrospective cohort of 200 patients treated in 2020. After reviewing medical records and radiographs, the following parameters were analyzed: age, gender, trauma mechanism, laterality, associated comorbidities and fractures, fracture classification (AO), radial height, radial inclination, and volar inclination...

INTRODUCTION: Pyrocarbon promises to be an optimal material choice for radial head arthroplasty (RHA) due to an elastic modulus comparable to the radial diaphysis and thus providing higher biocompatibility. Primary objective was to determine the complications and revision rates related to the usage of these prostheses. The secondary objective was to assess the clinical and radiological outcomes of Pyrocarbon RHAs. HYPOTHESIS: Pyrocarbon RHAs have good clinical and radiological outcomes with low complications and revisions...

Essex-Lopresti injuries are characterized by injuries to the proximal radio-ulnar joint, the distal radio-ulnar joint, and the interosseous membrane. This can lead to osteoarthritis, impaction syndrome, or instability. If all three structures are injured and lead to instability, the situation is almost unmanageable and many times ends in a one-bone forearm. In this article, we demonstrate a new way to reconstruct the proximal and distal radio-ulnar joint with two patient-specific coupled prostheses. These have been developed with the biomechanical conditions of the forearm in mind, where there are very large forces between the bones...

The term Monteggia-like lesions or Monteggia equivalent injuries includes fractures of the proximal ulna with dislocation and dislocation fractures of the radial head from the proximal radio-ulnar joint. The complexity of the injury requires a dedicated understanding of the anatomical structures and their biomechanical properties. Particularly due to the rarity, the complication and revision rates are high. A conservative treatment is not usually effective. Three-dimensional imaging by computed tomography is part of the surgical preparation...

INTRODUCTION: The divergent elbow dislocation represents a rare lesion where the proximal radioulnar joint is torn and the distal part of the humerus goes between the radius and the ulna, the forearm dislocates posteriorly. CASE REPORT: We report the case of a 37-year-old male patient who had a traumatic divergent dislocation of the left elbow, associated with ipsilateral fractures of the ulnar diaphysis and the radial styloid process. The elbow joint was reduced under general anesthesia with internal fixation of the ulnar diaphysis fracture and a pinning of the radial styloid fracture...

INTRODUCTION: Few multicenter studies have analyzed the outcome of revision surgery of radial head arthroplasties (RHA) in the medium term follow up. The objective is twofold: to determine the factors associated with revision of RHAs and to analyze the results of revision with 2 surgical techniques: isolated removal of the RHA or revision with a new RHA (R-RHA). HYPOTHESIS: There are associated factors of RHA revision and RHA revision results in satisfactory clinical and functional outcomes...

BACKGROUND: Only few methods treating comminuted radial head fractures have been established providing sufficient joint reconstruction, restoring radial length and enabling early joint mobilization. When an anatomical reconstruction using open reduction and internal fixation is not possible, radial head resection or primary arthroplasty is often conducted. An "Ex situ/on-table" reconstruction is widely disregarded but can be an option. The purpose of this study was to evaluate the functional and radiological outcome of comminuted radial head fractures treated with an "on-table" reconstruction and internal fixation using a low profile plate...

Several classification systems for radial head fractures discuss the number of fragments and their displacement, but not the exact location. This study aimed to evaluate the location of the radial head fracture fragments and the influence of the Mason type on the size of the fracture fragment. Forty-one radial head fractures (31 Mason type I and 10 type II) with an elliptical radial head were included in this retrospective study and 3D reconstructed. First, the fragments were repositioned to their original location...

A 4.3-kg, 11-month-old, spayed female poodle was presented for treatment of a right radio-ulnar nonunion fracture. Clinical history included failed surgical correction of a radius fracture with internal fixation 1 mo before presentation. Radiographic examination revealed a 1.5-cm lytic lesion on the right distal radius. Surgery was planned with a coccyx autograft and platelet-rich plasma. A 2.8-cm-long bone defect was created, and the lytic lesion was removed. Caudectomy was performed; the 6th and 7th coccygeal bones were harvested, placed into the defect, and fixed to the radius with a locking plate...

Semiconstrained arthroplasty of the distal radioulnar joint (DRUJ) (Scheker prosthesis, Aptis Medical, Glenview, KY, USA) is a treatment option in case of irreparable destruction of the DRUJ. In our unit, a Scheker endoprosthesis was implanted in 5 wrists in 4 patients. 3/5 wrists (60%) in 3/4 patients (75%) underwent revision surgery. Reasons for revision surgery were implant loosening, periprosthetic fracture of the radius and suspicion of periprosthetic infection. Asymptomatic loosening of the screw of the radial head cover was detected in one wrist...

A catastrophic fracture of the radial carpal bone experienced by a racehorse during a Palio race was analyzed. Computational modelling of the carpal joint at the point of failure informed by live data was generated using a multibody code for dynamics simulation. The circuit design in a turn, the speed of the animal and the surface characteristics were considered in the model. A macroscopic examination of the cartilage, micro-CT and histology were performed on the radio-carpal joint of the limb that sustained the fracture...

Radial head and neck fractures represent up to 14% of all pediatric elbow fractures and can be a difficult challenge in the pediatric patient. In up to 39% of proximal radius fractures, there is a concomitant fracture, which can easily be overlooked on the initial standard radiographs. The treatment options for proximal radius fractures in children range from non-surgical treatment, such as immobilization alone and closed reduction followed by immobilization, to more invasive options, including closed reduction with percutaneous pinning and open reduction with internal fixation...

BACKGROUND: Monteggia fractures are uncommon injuries in paediatric age. Treatment algorithms assert that length-unstable fractures are treated with plate fixation. In this case report, intramedullary fixation of an acute length-unstable Monteggia fracture allowed a stable reduction to be achieved, along with an appropriate ulnar length and alignment as well as radio capitellar reduction despite the fact that the orthopaedic surgeon did not use a plate for the ulnar fracture. The scope of treatment is to avoid the use of a plate that causes periosteal stripping and blood circulation disruption around the fracture...

Background: Since the Sauvé-Kapandji procedure was introduced in 1936, many modifications were created using dynamic stabilizer, such as the ECU (extensor carpi ulnaris), the FCU (flexor carpi ulnaris), pronator teres to solve proximal ulnar stump pain. We believe that this modification is also another option for distal ulnar stump instability. Methods: From January 1998 to February 2017, there were 13 patients received the Sauvé-Kapandji (S-K) procedure with tenodesis of the ECU to the carpus and interosseous membrane...

PURPOSE: In the last two decades, a strong interest on the interosseous membrane (IOM) has developed. METHODS: The authors present a review of the new concepts regarding the understanding of forearm physiology and pathology, with current trends in the surgical management of these rare and debilitating injuries. RESULTS: Anatomical and biomechanical studies have clarified the anatomy of forearm constrains and their role in forearm longitudinal and transverse stability...

Distal radial fractures are very common. Vicious consolidation can occur in up to one third of these fractures, resulting in wrist pain, restricted movement, and, eventually, physical limitation or disability. The treatment of this condition consists in corrective osteotomy, which requires careful preoperative planning due to its three-dimensional complexity, especially in injuries with joint involvement. Recently, prototyping based on three-dimensional (3D) reconstruction of computed tomography (CT) scans has been used for osteotomy planning in a 3D anatomical model...

The literature on forearm overgrowth after plating in traumatic conditions is relatively poor though this technique can be useful when intra-medullary nailing is not sufficient in pediatric cases. The goal of this study was to assess a potential overgrowth after plating and identify impact on function. We conducted a retrospective study of all pediatric patients who underwent open surgery of the radius and/or ulna diaphysis with internal fixation by plating, in our institution, between October 2013 and July 2019...

The Galeazzi fracture is an unstable fracture-dislocation of the forearm. There have been reports of non-union of the radius despite rigid internal fixation with a plate. We present the case of a 25-year-old male who fell from his bicycle, sustaining a closed Galeazzi fracture-dislocation. Definitive surgical fixation involved internal fixation using a six-hole dynamic compression plate. Post-operatively, the patient noted a significant reduction in pronation. The fracture had united but with approximately 5 mm of radial shortening...

BACKGROUND: The purpose of this paper is to evaluate the usefulness of radiographic indices of humero-radial joint instability in order to predict treatment outcomes in Monteggia fractures. MATERIAL AND METHODS: A retrospective analysis was conducted in a group of patients who underwent closed reduction and internal titanium elastic nail (TEN) fixation of the ulna and closed reduction of a dislocation of the radial head between 2016 and 2018. The indications for intrame-dullary fixation comprised transverse or short oblique fractures...