Persistent Median Artery and Carpal Tunnel Syndrome: A Retrospective Study.

 This study presents a retrospective study of persistent median artery associated with carpal tunnel syndrome (CTS).  A retrospective study of the persistent median artery and CTS. Exclusion criteria were patients who did not present persistent median artery, those who were diabetic, or had rheumatoid diseases, and those who decided not to do the surgery.

Total Wrist Arthrodesis: A Preoperative Test to Predict Functional Outcomes.

 The study aims to demonstrate an evaluation method to predict the functional success of total wrist arthrodesis (TWA) and assist its indication.  A prospective study including ten patients submitted to (TWA) posttraumatic arthritis. Exclusion criteria were patients who lost postoperative follow-up or incomplete information in the medical record.

Impact of COVID-19 on the Work, Health, and Quality of Life of Brazilian Hand Surgeons.

Background: To evaluate the impact of coronavirus disease 2019 (COVID-19) on the clinical practice, health, and quality of life of Brazilian hand surgeons when only essential services and emergency procedures were being provided.

Method: A questionnaire of 50 questions was sent to members of the Brazilian Society of Hand Surgery addressing work and life routines before the pandemic and during the initial quarantine period from April to August 2020.

Results: Two hundred ten hand surgeons answered the questionnaire; 55.

Evaluation of the COVID-19 Infection Rate in the Perioperative Period of Elective Surgeries of the Hand and Microsurgery.

Background: After the beginning of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic (coronavirus disease 2019 [COVID-19]), the world started reducing the number of elective surgeries to reduce the transmission of the coronavirus. Some priority elective surgeries were performed, and there was no increase in contagion rates due to safety protocols and protection measures. The study aims to present the coronavirus infection rate of elective hand surgeries and microsurgery performed during pandemics.

Diagnostic Failure Rate in Detecting Perilunate Carpal Fractures and Dislocations Using Plain Wrist X-Rays.

 The present study aimed to evaluate the diagnostic failure rate in detecting perilunate fractures and dislocations using plain wrist radiographs by orthopedists and orthopedic residents. A secondary objective was to identify possible groups with a greater or lesser chance of establishing a correct diagnosis.  An online questionnaire was sent to several orthopedists through e-mail, social networks, and smartphone-based communication applications to assess the rate of diagnostic failure in detecting perilunate fractures and dislocations using plain radiographs.

In vivo standardization of bone ultrasonometry of the clavicle.

Objective: The assessment of fracture union includes physical examination and radiographic imaging, which depend on the examiner's experience. The development of ancillary methods may avoid prolonged treatments and the improper removal of implants. Quantitative bone ultrasonometry has been studied for this purpose and will soon be included in clinical practice.

Functional outcomes of proximal row carpectomy: 2-year follow-up.

Objective: : To evaluate functional outcomes of patients submit-ted to proximal row carpectomy for the treatment of wrist arthri-tis.

Methods: : This is a retrospective study using wrist motion and grip strenght of patients diagnosed with Kienböck disease and scaphoid non-union surgically treated by this technique.

Results: : Eleven patients with 2-year follow-up were evaluated.

Influence of the osteosynthesis plate on ultrasound propagation in the bone.

Objective: To analyze the influence of steel plates for osteosynthesis on the velocity of ultrasound propagation (VU) through the bone.

Methods: The transverse coronal and sagittal velocity of ultrasound propagation underwater were measured on the intact bone and then on assemblies of the same bone with two types of osteosynthesis plates (DCP and semi tubular), fixed onto the dorsal side of the bones. The first arriving signal (FAS) was the ultrasound parameter used, taking the coronal and sagittal diameters as the distances to calculate velocity.

Congenital syndactyly: case by case analysis of 47 patients.

Objective: To assess and report clinical data from patients with syndactyly.

Methods: A retrospective review of 47 patients treated between April 2002 and April 2012.

Results: Among the 47 analyzed patients, 33 (70%) were male and 14 (30%) female.

Influence of cortical bone thickness on the ultrasound velocity.

Objective: An experimental in vitro study was carried out to evaluate the influence of cortical bone thickness on ultrasound propagation velocity.

Methods: Sixty bone plates were used, made from bovine femurs, with thickness ranging from 1 to 6 mm (10 of each). The ultrasound velocity measurements were performed using a device specially designed for this purpose, in an underwater acoustic tank and with direct contact using contact gel.