Olecranon

INTRODUCTION: Isolated trochlear fractures are very rarely reported in the orthopedic literature; moreover, most of the cases reported are of patients in the younger age group. Due to its anatomical position, trochlear fractures are usually associated with other bony injuries around the distal humerus and with elbow dislocation, and so, its extremely rare to find an isolated trochlear fracture reported in postmenopausal lady with osteoporotic bone. CASE REPORT: Here, we report a postmenopausal elderly lady suffering from isolated trochlear fracture of humerus trochlea...

The purpose of our study was to determine differences in adaptative and injury patterns in the elbow related to valgus extension overload (VEO) in overhead throwing athletes by age. A total of 86 overhead throwing athletes and 23 controls underwent MRI or MR arthrography (MRA) of the elbow. Throwing athletes were divided by age into three groups: ≤16 years (26 subjects), 17-19 years (25 subjects), and ≥20 years (35 subjects). Consensus interpretation of each MRI was performed, with measurements of ulnar collateral ligament (UCL) thickness and subchondral sclerosis at the radial head, humeral trochlea, and olecranon process...

We describe a case report of a 13 year-old a gymnastic athlete who was diagnosed with an olecranon stress fracture associated with mild medial epicondyle apophysitis, Following a brief review of the literature on this case, the researchers call attention to the significance of and imaging assessment especially MR in determining the correct diagnosis and identifying concomitant injuries. MRI findings concluded firstly a marked bone marrow edema seen at the posterior medial aspect of the olecranon with linear low signal traversing the olecranon related to a stress fracture...

In the elbow joint, occurrences of intra-articular osteoid osteoma are uncommon. We detail the case of a 21-year-old male who experienced pain, inflammation, and a restricted ability to move his elbow. For a few months, the diagnoses was missed and the patient was treated for idiopathic synovitis. After a contrast MRI, the tumor was revealed. During an arthroscopic examination of the elbow, a distinct red lesion was observed after the removal of the pale reactive bone in the olecranon cavity. This was subsequently removed in its entirety with the aid of a specialized bone tool...

PURPOSE: The goal of this study was to use image analysis recordings to measure the carrying angle of elite male tennis players during the forehand stroke, with the hypothesis that elite tennis players overstress their elbow in valgus over the physiological degree in the frontal plane just before ball contact on forehand groundstrokes. METHODS: The carrying angle of male tennis players ranked in the top 25 positions in the ATP ranking was measured on selected video frames with the elbow as close as possible to full extension just before the ball-racket contact in forehands...

Posteromedial elbow impingement due to valgus extension overload often develops as a result of excessive valgus and extension force during repetitive overhead throwing activities. Impingement classically occurs in throwing athletes such as baseball, tennis, softball, or lacrosse players. If isolated, arthroscopic removal of the posteromedial olecranon osteophytes shows excellent postoperative satisfaction, return to sport rates, and return to previous level of activity. This Technical Note describes treatment of posteromedial elbow impingement syndrome and associated olecranon stress fracture treated with arthroscopic removal of posteromedial osteophytes and arthroscopic-assisted screw fixation...

BACKGROUND: Traumatic coronoid deficiency with persistent elbow instability is a challenging condition. Autologous bone graft reconstruction is often associated with a range of additional clinical problems and the outcome is often unpredictable. The purpose of this study was to design a prosthetic device that can reconstruct coronoid deficiency of any height and to evaluate its mechanical properties using finite element analysis. MATERIALS AND METHODS: A customized coronoid prosthesis was designed based on image registration, automatic measurement and computer-aided design...

BACKGROUND: Forearm and olecranon fractures are a common orthopaedic injury. This study aimed to analyse whether the incidence of forearm injury is changing and identifying trends in the number of forearm and olecranon fractures using public aggregated data in Sweden. METHODS: The number of forearm and olecranon fractures as defined by the number of registered diagnoses with the ICD-10 code of S52 were collected and normalized per 100,000 inhabitants and stratified per sex, age, and month...

INTRODUCTION: Dematiaceous fungi are a group of fungi characterized by the presence of melanin in their cell walls. These fungi are known to cause a wide range of infections in humans, including skin and soft-tissue infections, sinusitis, and meningitis. Infections caused by dematiaceous fungi are typically seen in immunocompromised hosts and manifest most commonly as cutaneous or subcutaneous disease. Systemic infections are exceedingly rare and associated with significant morbidity and mortality...

Diarthrognathus broomi is a transitional taxon between non-mammaliaform cynodonts and Mammaliaformes that occurred during the Late Triassic to Early Jurassic. All known specimens of Diarthrognathus represent juveniles, and the postcrania have not been thoroughly described. The palatal, basicranial and postcranial elements of the referred specimen NMQR 1535 are described here for the first time using 3D reconstructions generated from X-ray micro-computed tomography (μCT) data. The presence of a large interpterygoid vacuity, open medial suture between the vomers and medially unossified secondary palate all support the interpretation that NMQR 1535 is a juvenile...

BACKGROUND: Approach need to be considered when surgeons dealt with complex elbow injuries and the choice of the approach is a challenge for surgeons due to the complex anatomy. On the basis of releasing the lateral collateral ligament, we modified the dislocation technique to pursue the superior exposure including not only the distal humeral surface but also the anterior facet of the coronoid process. METHODS: A total of 4 cadaver specimens and 8 elbows were included in the study...

PURPOSE: This study aimed to compare the biomechanical pull-out strength of the three different tension band wiring (TBW) methods employed to fix transverse olecranon fractures on bone models. METHODS: Three different fixation models were created in groups of seven synthetic olecranon fractured bone models. The first technique was fixed the olecranon with the traditional TBW method. The second technique was fixed the olecranon with a large intramedullary screw TBW method...

OBJECTIVE: This study aimed to biomechanically compare the maximum rotational, axial movements, and compression forces between fracture fragments before and after 1-4 mm fracture site resorption among interlocking nails, compression nails, and newly designed compressive anti-resorption (CARES) nails compressed with tube and coil spring. METHODS: We determined the maximum axial/rotational movements and interfragmentary compression loads between fragments on 10 interlocking nails, 10 compression nails, and 10 CARES nails with 30 composite femurs...

OBJECTIVE: This study aimed to present the clinical outcomes and establish a safe range for olecranon wedge osteotomy combined with internal fixation in treating Mayo IIB-type olecranon fractures. METHODS: Ten consecutive patients (10 elbows) underwent treatment involving wedge osteotomy combined with internal fixation. Primary outcome measures included the evaluation of the Oxford Elbow Score (OES), Mayo Elbow Performance Score (MEPS), pain severity assessed via a visual analogue scale (VAS), elbow mobility, and the extent of osteotomy at the final follow-up...

BACKGROUND: Research into artificial intelligence (AI)-based fracture detection in children is scarce and has disregarded the detection of indirect fracture signs and dislocations. OBJECTIVE: To assess the diagnostic accuracy of an existing AI-tool for the detection of fractures, indirect fracture signs, and dislocations. MATERIALS AND METHODS: An AI software, BoneView (Gleamer, Paris, France), was assessed for diagnostic accuracy of fracture detection using paediatric radiology consensus diagnoses as reference...

Elbow fractures are among the most common fractures sustained in pediatric patients. A specific set of pediatric elbow fractures (olecranon, radial neck, and lateral condyle fractures) comprises the ones that occur most often. It is important to review commonly accepted principles in the evaluation and treatment of these injuries as well as highlight some debates that exist within the literature regarding the optimal management of these injuries. Although management of pediatric olecranon, radial neck, and lateral condyle fractures has been well described, controversy persists among orthopaedic surgeons regarding the surgical indications and preferred fixation techniques for these injuries...

BACKGROUND: Displaced olecranon fractures constitute a challenging problem for elbow surgeons. The purpose of this study is to evaluate the role of suture anchor fixation for treating patients with displaced olecranon fractures. METHODS: A retrospective review was performed for all consecutive patients with displaced olecranon fractures treated with suture anchor fixation with at least 2 years of clinical follow-up. Surgical repair was performed acutely in all cases with nonmetallic suture anchors in a double-row configuration utilizing suture augmentation via the triceps tendon...

INTRODUCTION: Complex elbow dislocations in which the dorsal cortex of the ulna is fractured can be difficult to classify and therefore treat. These have variably been described as either Monteggia variant injuries or trans-olecranon fracture-dislocations. Additionally, O'Driscoll et al classified coronoid fractures that exit the dorsal cortex of the ulna as "basal coronoid, subtype 2" fractures. The Mayo classification of trans-ulnar fracture-dislocations categorizes these injuries in three types according to what the coronoid remains attached to: Trans-olecranon fracture-dislocations, Monteggia variant fracture-dislocations, and trans-ulnar basal coronoid fracture-dislocations...

BACKGROUND: Our experience with the surgical flip-dislocation of the bicolumnar (SFDB) approach for type AO 13C3 humeral fractures indicates that this surgical approach can be performed safely and effectively in appropriately selected patients. We aimed to evaluate the clinical outcomes of the SFDB approach without olecranon osteotomy (OO) for type AO 13C3 distal humeral fractures. METHODS: We retrospectively reviewed 65 cases of type AO 13C3 distal humeral fractures treated between April 2008 and July 2018; 33 patients were treated with the SFDB approach, and the remaining were treated with OO...

OBJECTIVE: Combined fractures of the lateral condyle of the humerus and the ipsilateral ulnar olecranon are rarely seen in children. Therefore, the mechanism and suitable treatments remain debatable. This study describes the possible mechanism of combined humeral lateral condyle and ipsilateral ulnar olecranon fractures and presents the treatment results. METHODS: Children diagnosed with combined fractures of the humeral lateral condyle and ipsilateralulnar olecranon from July 2010 to July 2020 were retrospectively analyzed...