The local molecular signature of human peripheral neuropathic pain.

Focal nerve injuries are often associated with neuropathic pain. Preclinical research suggests altered neuroimmune signalling underlies such neuropathic pain; however, its cause remains poorly understood in humans. In this multicentre cohort study, we describe the local cellular and molecular signature of neuropathic pain at the lesion site, using Morton's neuroma as a human model system of neuropathic pain (n = 22; 18 women) compared with nerves from participants without nerve injury (n = 11; 4 women).

Complex regional pain syndrome after distal radius fracture: A survey of current practices.

Introduction: Complex regional pain syndrome (CRPS) is a common complication following distal radius fractures that is difficult to diagnose and can lead to permanent disability. While various proposed prophylaxis and treatment modalities exist, high-quality evidence guiding practice is limited. This survey of Orthopaedic Trauma Association (OTA) and Canadian Orthopaedic Association (COA) members was conducted with the primary aim of assessing practice patterns in distal radius fractures complicated with CRPS.

Evaluating family-centred care at BC Children's Hospital: Healthcare providers' perspectives.

Background: Family-centred care (FCC) emphasizes a partnership approach to care between healthcare providers (HCPs), patients, and families. FCC provides significant benefits to both children and families; however, challenges exist in implementing FCC into practice. This study aimed to explore HCPs' FCC behaviours in multidisciplinary specialty clinics at a tertiary pediatric health care center in Canada.

A Scoping Review of Mental Practice in Athletes: How can Surgeons Learn?

Introduction: Mental imagery is a dynamic mental state involving the cognitive visualization and rehearsal of motor movements or positions without overt motor output. Mental imagery is known to have numerous benefits for skill acquisition within athletic performance and is often incorporated into elite athletic training programs. The literature on the effects of mental imagery in surgery, which shares many of the high-performance qualities of elite athletics, remains limited.

Multicentre analysis of severe perioperative adverse events in children undergoing surgery who were infected with SARS-CoV-2: a propensity score-adjusted analysis.

Background: The incidence of severe adverse events in children with SARS-CoV-2 undergoing anaesthesia has not been well established. We examined the relationship between SARS-CoV-2 infection and severe perioperative adverse events in children.

Methods: This multicentre (21 North American institutions), retrospective cohort study included children <18 years old, with American Society of Anesthesiologists physical status (ASA PS) of 1-4 and non-severe SARS-CoV-2, who underwent general anaesthesia between April 1, 2020, and March 31, 2021.

Should the C7-T1 Junction Be Feared? The Effect of a T1 Upper Instrumented Vertebra on Development of Proximal Junctional Kyphosis.

Purpose: Proximal junctional kyphosis is an infrequent complication in AIS; however, equipoise remains on the effects of ending a fusion proximally at the C7-T1 junction on the future development of PJK. The purpose of this study was to determine the rate of PJK in patients with AIS who had a UIV of T1 vs those with a UIV of T2 at 5 years of follow-up.

Methods: A query was performed of a prospective, multi-center AIS database of patients who received a PSF with at least 5 years of follow-up.

Compensatory thoracic curve correction in lumbar anterior vertebral body tether (VBT) versus lumbar posterior spinal fusion (PSF).

Purpose: Anterior vertebral body tethering (VBT) is a non-fusion surgical option for skeletally immature patients with idiopathic scoliosis. Prior studies demonstrated compensatory correction of the thoracic curve after lumbar posterior spinal fusion (PSF); however, no studies have examined thoracic curve correction after lumbar VBT.

Methods: Patients with Lenke 5 + 6 lumbar scoliosis who underwent VBT and at least 2 years' follow-up were compared to matched lumbar PSF patients.

A comparison of orthopaedic surgery training across five English-speaking countries.

Introduction: There is undocumented and unjustified variability in orthopaedic surgery training between countries. This study compares and contrasts the main features of orthopaedic training in Australia, New Zealand, the United Kingdom, United States, and Canada.

Methods: Comparisons included: competition for, and selection into, training; training pathway structures; training requirements, and; training length.

Granzyme B cleaves tenascin-C to release its C-terminal domain in rheumatoid arthritis.

Rheumatoid arthritis (RA) is a common autoimmune disorder characterized by exacerbated joint inflammation. Despite the well-documented accumulation of the serine protease granzyme B (GzmB) in RA patient biospecimens, little is understood pertaining to its role in pathobiology. In the present study, tenascin-C (TNC) - a large, pro-inflammatory extracellular matrix glycoprotein - was identified as a substrate for GzmB in RA.

Who gets better after surgery for degenerative cervical myelopathy? A responder analysis from the multicenter Canadian Spine Outcomes and Research Network.

Background Context: Degenerative cervical myelopathy (DCM) is the most common cause of acquired nontraumatic spinal cord injury worldwide. Surgery is a common treatment for DCM; however, outcomes often vary across patients.

Purpose: To inform preoperative education and counseling, we performed a responder analysis to identify factors associated with treatment response.

Gender differences in spine surgery for degenerative lumbar disease: prospective cohort study.

Objective: Despite efforts toward achieving gender-based equality in clinical trial enrollment, females are frequently underrepresented and gender-specific data analysis is lacking. Identifying and addressing gender bias in medical decision-making and outcome reporting may facilitate more equitable healthcare delivery. This study aimed to determine if gender differences exist in the clinical evaluation and surgical management of patients with degenerative lumbar conditions.

Screening, diagnosis, treatment and outcomes of developmental dysplasia of the hip in Brazilian population: a scoping review protocol.

Introduction: Developmental dysplasia of the hip (DDH) includes a spectrum of clinical and imaging findings at birth or early infancy. The circumstances in which this condition is detected and managed may be heterogeneous in Brazil owing to its large territory and regional socio-economic differences. Mapping DDH perspectives in a country is fundamental for designing guidelines and strategies for public policy.