Burden and predictions of hospitalized injuries in a low-middle income country: results from a Tunisian university hospital.

Injuries are responsible for a high premature mortality and disability. They are poorly explored in low and middle income-countries. We aimed to estimate the burden of hospitalized injuries in the Monastir governorate (Tunisia) according to the nature of the injury, trends and projections of hospitalizations for injuries up until 2024, and to identify the distribution of this disease burden based on age and sex.

Ultraviolet Photoactivation Using Synchrotron Radiation for Tandem Mass Spectrometry of Polysiloxanes.

Gas-phase decompositions of polymer ions play an important role in mass spectrometry to obtain accurate structural information. In this work, UV photoactivation experiments were performed from two poly(dimethylsiloxane)s bearing different end groups (two trimethylsilyl, or α--butyl and ω- trimethylsilyl). Precursor ions, such as [Polysiloxane+Cation] produced by an electrospray source, were stored in a linear ion trap and then submitted to synchrotron UV irradiation during different activation times and over a range of wavelengths (52 to 248 nm) from extreme UV (XUV) to deep UV.

Synchrotron UV photoactivation of trapped sodiated ions produced from poly(ethylene glycol) by electrospray ionization.

Rationale: By taking advantage of the gas-phase decompositions of polymer ions, tandem mass spectrometry of polymers allows us to obtain more accurate structural information than from a simple mass measurement. Applied to a model polymer, the goal of this work was to evaluate the performances of an activation technique based on ultraviolet (UV) irradiation, as an alternative to conventional collisional activation.

Methods: Sodiated poly(ethylene glycol) produced by electrospray ionization was isolated in a linear ion trap, then submitted to synchrotron UV irradiation over a range of wavelengths (52 to 248 nm).

[Treatments associated with scarf osteotomy for hallux valgus correction].

In view of the multiplicity of the proposed techniques for hallux valgus correction, we recommend to evaluate scarf osteotomy associated or not with phalangeal osteotomy and/or Weil osteotomy. We conducted a retrospective study of 29 patients, including a bilateral case, undergoing scarf osteotomy of the first ray with associated treatments in 80% of cases between 2011 and 2016. Results were analyzed on the basis of patients' satisfaction, Groulier index and radiological measurements.

Study of the gas-phase decomposition of multiply lithiated polycaprolactone, polytetrahydrofurane and their copolymer by two different activation methods: Collision-induced dissociation and electron transfer dissociation.

Collision-Induced Dissociation and Electron Transfer Dissociation experiments were carried out from various lithium adducts ([M+2Li], [M+3Li]) from polycaprolactone diol (pCL), polytetrahydrofurane (pTHF), and one triblock copolymer (pCL-pTHF-pCL). In both cases (pCL and pTHF), CID of triply lithiated precursors led to complex mass spectra compared to corresponding ETD spectra, which remained relatively simple because CID product ions exhibit multiple charge states whereas ETD mainly led to singly charged fragment ions. CID of pCL involves charge-remote rearrangements over the ester groups and intramolecular transesterification reactions, whereas ETD leads to radical and charge induced cleavages leading globally to structurally different product ions but accounting for the same bond cleavages: (CO)O-C and (CO)-O respectively.

Monteggia fracture with unreducable anterior dislocation of the radial head and a lesion of the external collateral ligament of the elbow.

Monteggia described a fracture of the proximal third of the ulna with anterior dislocation of the radial head from both the proximal radioulnar and radiocapitellar joints. The key treatment principle in Monteggia fractures is stable anatomic alignment of the ulna. We present an uncommon case of a Monteggia fracture-dislocation with an unreducable anterior dislocation of the radial head and associated with a lesion of the lateral collateral ligament of the elbow.

An unusual Monteggia equivalent type 1 lesion: Diaphyseal ulna and radius fractures with a posterior elbow dislocation in a child.

In this report, we describe an extremely unusual Monteggia equivalent type 1 lesion in a 10-year-old boy following a fall from a height of 1 m. On the plain radiographs, our patient had a particular Monteggia equivalent type 1 injury associating a posterior elbow dislocation with diaphyseal radius and ulna fractures. The patient was treated by closed reduction technique.

Intra-articular knee arborescent lipoma: a case treated with arthroscopic synoviectomy.

Arborescent lipoma is an unusual intra-articular lesion that typically develops in the knee and has to be evoked before chronic effusion. It corresponds to hyperplasia of mature fatty tissue and hypertrophy of synovial villi, developing within a joint. The reference treatment is synovectomy by arthrotomy.

Uncommon Floating Knee in a Teenager: A Case Report of Ipsilateral Physeal Fractures in Distal Femur and Proximal Tibia.

Introduction: The concomitance of ipsilateral physeal fractures of the distal femur and the proximal tibia is an extremely scarce entity. It is conceptually similar to floating knee in pediatric population.

Case Report: One case with this injury is reported in a 16-year-old teenager.

Uncommon Floating Knee in a Teenager: A Case Report of Ipsilateral Physeal Fractures in Distal Femur and Proximal Tibia.

Introduction: The concomitance of ipsilateral physeal fractures of the distal femur and the proximal tibia is an extremely scarce entity. It is conceptually similar to floating knee in the pediatric population.

Case Report: One case with this injury is reported in a 16-year-old teenager.

Chondroblastic osteosarcoma of the distal tibia: a rare case report.

Chondroblastic osteosarcoma, representing about 25% of osteosarcoma, is a fatal primary malignancy of the skeleton if not diagnosed and treated appropriately. It most commonly occurs in the long bones of the extremities near the metaphyseal growth plates. In this report, we describe the occurrence of chondroblastic osteosarcoma involving the left distal tibia in a 14-year-old male.

Coracoid fracture combined with distal clavicle fracture without coracoclavicular ligament rupture: A case report.

Distal clavicle fracture accompanied by coracoid process one is a rare injury. Surgical and/or conservative treatments are proposed. We report the case of a 49-year-old woman presenting a distal clavicle fracture associated with a coracoid process one due to a fall on the left shoulder.

Obturator dislocation of the hip with ipsilateral femoral neck fracture: A case report.

Obturator dislocation of the hip associated with ipsilateral femoral neck fracture is an unusual injury. We report a case of a 40-year-old man with such a combination of injuries which was treated with an open reduction and internal fixation. He has a good follow-up result.

[Idiopathic ulnar nerve entrapment at the elbow: report of 20 cases].

We report a retrospective study of 20 patients treated for idiopathic cubital tunnel syndrome in a period of 10 years (2002-2011). The average age was 46 years. A profession at risk was present in the majority of cases.

Osteochondritis dissecans of the capitellum: autologous osteochondral mosaicplasty: a case report.

The etiology of osteochondritis dissecans (OCD) of the capitellum is unknown but has generally been attributed to repetitive microtrauma or ischemia. We present a case report of a handball player with OCD of the capitellum. Preoperatively, he complained of elbow pain.

Isolated greater tuberosity fracture: Short-term functional outcome following a specific rehabilitation program.

Background: Evaluate the functional outcome of a specific program of rehabilitation during conservative treatment of fracture of the greater tuberosity.

Methods: We retrospectively studied the records of 22 patients, with minimally displaced greater tuberosity fracture, according to inclusion criteria. All patients have received an early (one week after the injury) rehabilitation program based on physical analgesic therapy means, techniques for recovering range of motion, strengthening exercises, proprioceptive stabilization exercises and usability advices.

[Soft tissue chondroma of the thumb. A case report].

Background: Soft-tissue chondroma is a rare and benign cartilaginous tumour often localised in the extremities. The thumb is very rarely affected.

Aim: We report a new case typical for this lesion with review of literature.

[Ulnar nerve compression at the elbow and heterotopic ossification: a report of five cases].

Aim: Heterotopic ossification (HO) is common in head-injured patients. Ulnar nerve compression by HO at the elbow is rare. The purpose of this study was to establish a strategy for the management of ulnar nerve compression secondary to HO at the elbow.

[Pseudarthrosis of the coracoid process after dislocation of the shoulder].

Purpose Of The Study: The aim of this study is to present an unusual lesion combining instability of the shoulder with a fracture of the coracoid process.

Material And Methods: The authors have treated one case of recurrent anterior dislocation of the shoulder associated with pseudarthrosis of the coracoid process. The shoulder was stabilised by surgery using the Latarjet procedure.

Intercondylar fracture of the distal humerus in youth: two case reports.

Intercondylar fracture of the distal humerus in youth is an extremely rare injury. Three cases have been reported in the literature to date. We describe two cases, aged 15 and 14 years, both of whom were boys.