High Incidence of Intraoperative Fractures With a Specific Cemented Stem Following Intracapsular Displaced Hip Fracture.

Background: To reduce costs of orthopedic implants, the government decided to standardize implants used across different specialties in a group of hospitals located in the same geographic area. The usual cemented stem used in the context of intracapsular displaced geriatric hip fractures was replaced by another stem. Abnormal intraoperative calcar and trochanteric fractures were noted.

Impairment of chemical hypoxia-induced sphingosine kinase-1 expression and activation in rheumatoid arthritis synovial fibroblasts: A signature of exhaustion?

Sphingosine kinase 1 (SphK1) and 2 (SphK2) have been shown contribute to synovial inflammation in animal models of arthritis. However, low levels of intracellular sphingosine-1 phosphate (S1P) were reported in fibroblast-like synoviocytes (FLS) from patients in the end stage of rheumatoid arthritis (RA) compared to normal FLS. Moreover, the S1P receptor-mediated chemokine synthesis was altered in RAFLS in response to chemical hypoxia.

Risk Factors for Removal of Calcaneus Screws: A Retrospective Study.

Although techniques using calcaneus screws have shown high union rates, posterior heel pain due to prominent hardware at the posterior and plantar aspect of the calcaneal tuberosity seems to be a significant complaint that often leads to hardware removal. The purpose of the present study was to identify the clinical and radiologic risk factors associated with calcaneus screw removal. A retrospective study of adult patients who required calcaneus screw fixation from January 2008 to December 2016 was conducted.

Retrospective cohort study on radial head replacements comparing results between smooth and porous stem designs.

Background: When necessary, radial head integrity after a fracture can be re-created by the use of a radial head arthroplasty if the radial head is judged irreparable. The purpose of this study was to compare the clinical and radiographic outcomes of metal modular radial head replacements with a smooth vs. a porous stem.

Ankle Lead Arthropathy and Systemic Lead Toxicity Secondary to a Gunshot Wound After 49 Years: A Case Report.

Intra-articular bullet wounds have been found to cause both local and systemic consequences, in particular, when retained over many years. Only a few such cases have been described in published reports, each with different implications, depending on the joint involved and whether the patient experienced lead toxicity. We report the rare case of a 63-year-old male with lead arthropathy of the ankle secondary to a gunshot wound 49 years earlier.

Incipient malunion of an isolated humeral trochlea fracture treated with an elbow hemiarthroplasty: case report.

We report the case of a 49-year-old woman with severe elbow ankylosis 10 weeks after a trochlea fracture treated with open reduction and internal fixation. Imaging confirmed failure of open reduction and internal fixation with a displaced and severely damaged trochlea. We treated the nascent malunited trochlea and associated elbow ankylosis with a distal humeral hemiarthroplasty and circumferential elbow arthrolysis.

A prospective randomized multicenter trial comparing clinical outcomes of patients treated surgically with a static or dynamic implant for acute ankle syndesmosis rupture.

Objectives: To compare the clinical and radiographic outcome after stabilization of an acute syndesmosis rupture with either a static implant (a 3.5-mm metallic screw through 4 cortices) or a dynamic device (TightRope; Arthrex).

Design: Multicenter randomized double-blind controlled trial.

Irreducible Fracture-Dislocation of the Ankle Associated With Interposition of the Tibialis Posterior Tendon in the Syndesmosis: A Case Report.

Although ankle fracture-dislocations are common orthopedic injuries, it is very uncommon for them to be irreducible, and such cases require special attention. We report the case of a closed fracture-dislocation of the ankle in a 17-year-old male that required 3 surgeries because of persistent anterior subluxation of the talus on the postoperative radiographs. After advanced radiologic investigations, tibialis posterior tendon interposition in the syndesmosis was identified as the cause of the subluxation.