Incidence and timing of postoperative complications after total hip and knee arthroplasty.

Background: Follow-up protocols after total hip or knee arthroplasty (THA or TKA, respectively) have little uniformity, which can lead to emergency department (ED) visits for postoperative complications. We sought to determine the incidence and timing of postoperative complications after THA or TKA.

Methods: We conducted a population-based retrospective cohort study of all adults in Ontario who underwent primary THA or TKA between 2010 and 2019.

The antimicrobial properties of exogenous copper in human synovial fluid against Staphylococcus aureus.

Aims: The mechanism by which synovial fluid (SF) kills bacteria has not yet been elucidated, and a better understanding is needed. We sought to analyze the antimicrobial properties of exogenous copper in human SF against .

Methods: We performed in vitro growth and viability assays to determine the capability of to survive in SF with the addition of 10 µM of copper.

Pathological femoral neck fracture in a male patient due to non-simultaneous bilateral transient hip osteoporosis: A case report: Statements and Declarations.

Unlabelled: We report a case of a 31-year-old man who developed a non-simultaneous bilateral transient hip osteoporosis (THO) complicated with an atraumatic undisplaced pathological femoral neck fracture (FNF) of his left hip. He was successfully treated with internal fixation on the left hip, and a follow-up Magnetic Resonance Imaging evidenced satisfactory resolution on the right side. Diagnosis and management of THO are usually challenging as symptoms before pathological FNFs might be misdiagnosed.

Medium-term outcomes of conventional versus short uncemented femoral stems for primary total hip arthroplasty in patients younger than 55 years.

Background: Short stems are designed with a bone preservation philosophy in mind. This study aims to compare the outcomes/complications and survival of a collarless fully hydroxyapatite (HA)-coated conventional tapered stem and a HA-coated partial neck-retaining uncemented short stem in patients ⩽55 years old at medium-term follow-up.

Methods: We retrospectively studied 247 uncemented THAs operated between 2010 and 2014, comparing 146 patients treated with the fully HA-coated collarless stem (Group A) with 101 patients treated with a partial neck preserving, HA-coated short stem (Group B).

Minimum 2-Year Outcomes of All-Polyethylene Tibial Components in Patients Who Have Body Mass Index of 35 or Greater.

Background: Several studies have reported negative results after total knee arthroplasty (TKA) in obese patients. This study aims to analyze the minimum 2-year outcomes in patients who have a body mass index (BMI) > 35 undergoing cemented TKA using an all-polyethylene tibial component (APTC) at a minimum of 2 years of follow-up.

Methods: We retrospectively studied 163 obese patients (192 TKAs) who underwent a primary cemented TKA using an APTC comparing the outcomes of 96 TKA patients who had a BMI > 35 to 39.

Short-Term Results of Osteochondral Autologous Transfer and Femoral Neck Osteochondroplasty for the Treatment of Osteochondral Lesions of the Femoral Head and Concomitant Femoroacetabular Impingement Syndrome: A Case Series.

This study aimed to analyse the initial results of five patients with symptomatic osteochondral lesions (OCL) and femoroacetabular impingement (FAI) who were treated successfully with osteochondral autologous transfer (OAT) and femoral neck osteochondroplasty (OCP) through surgical dislocation of the hip. Five patients with FAI and OCL of the femoral head who underwent surgery between 2015-2018 were studied retrospectively. All patients had a grade IV OCL, and the median defect size was 2 cm (interquartile range [IQR], 2-2).

[Septic hip arthritis after a closed acetabulum fracture treated conservatively. Case report].

Necrotizing fasciitis is a life-threatening infection. Inmediate diagnosis and treatment are essential. Acetabulum fractures are a frequent identity in older adults today, associated with low-energy trauma.

Adverse Local Tissue Reaction Associated With Ceramic-On-Metal Bearing Surface in Primary Total Hip Arthroplasty: Report of Two Cases.

Unlabelled: Total hip arthroplasty (THA) is one of the most common and successful surgical procedures worldwide. At the same time, it is constantly evolving, and as a consequence, advances in implant technology have led to significant improvements in the different materials of the acetabular and femoral components. The selection of bearing surfaces and their tribology are critical to achieving a successful outcome.

[Sequelae of late diagnosis and treatment of developmental dysplasia of the hip: case report and surgical technique description].

Developmental hip dysplasia (DHD) is a common entity that affects 4 out of every 1000 live births and is a recognized cause of secondary hip osteoarthritis despite routine perinatal controls. In most patients, the early diagnosis of the pathology allows an evolution without sequelae. However, in the basis that patients diagnosed late and with multiple surgeries are patients with open physis, ossification nuclei present and previous surgeries in the approach area, the late diagnosis represents a real challenge for the orthopedist.

Preliminary outcomes of the cementless UNITED hip system for primary total hip arthroplasty at a minimum 2-year follow-up.

Introduction: This study aimed to report the initial results of the cementless UNITED hip system in primary total hip arthroplasty (THA) with a minimum follow-up of 2 years.

Methods: We retrospectively studied a consecutive series of 203 cementless THAs in 180 patients operated between 2015-2017. We included 89 female and 91 male patients with a mean age of 67 (28 to 89) years.

[Intramedullary nail for the surgical treatment of unstable fractures of the femur in previously amputated patients].

Introduction: Femoral fractures in previously amputated patients (PAP) have been poorly reported in international literature, however it is worth mentioning that advances in the manufacture of orthotics for lower limbs have allowed these patients to remain functionally active. Surgery is then an option but difficulties may appear in positioning the patient for surgery due to the absence of the foot or ankle from where to pull and optimize the fracture reduction.

Objective: We report 3 cases of PAP with ipsilateral unstable femur fractures, treated surgically with cervicodiaphyseal endomedular nail.

[Are lateral view radiographs necessary to properly classify femoral neck fractures? Intra and interobserver analysis using Garden's classification system].

Introduction: Femoral neck fractures have been historically diagnosed by anteroposterior (AP) and lateral (L) radiographic views. We analyzed the importance of the L view for management of femoral neck fractures, using the Garden's classification system.

Materials And Methods: Slides were elaborated with AP and L radiographic views of 100 patients with femoral neck fractures admitted to our emergency department.

[Isolated elbow dislocation in pediatric patients: non-operative treatment and complications associated with an infrequent pathology. Series of 4 cases].

Even though the elbow is the most often dislocated joint in children, this injury accounts for 3-6 % of elbow pathology. Dislocations without associated fractures are extremely rare. They result from a fall onto an outstretched hand.

Who Restores Hip Biomechanics More Effectively after a Femoral Neck Fracture? Comparison of Total Hip Arthroplasties Performed by Either Hip Surgeons or Orthopaedic Residents.

Background: This study aims to analyze the ability to restore hip biomechanics in patients who undergo total hip arthroplasty for displaced femoral neck fractures operated by either hip surgeons (HSs) or orthopaedic residents (ORs).

Methods: We retrospectively compared 95 patients treated by HSs (group A) with 110 patients treated by ORs (group B). Leg-length discrepancy, femoral offset (FO), center of rotation (COR), acetabular inclination, and acetabular anteversion were evaluated on postoperative radiographs using the healthy contralateral hip as control.

Conversion total hip arthroplasty with a proximally modular, distal fixation reconstruction prosthesis following cephalomedullar nail failure.

Background: The goals of intertrochanteric hip fracture (IHF) treatment are stable fixation, early mobilisation and function restoration. If the attempt to reduce, stabilise and fracture healing utilising a femoral cephalomedullar nail (CMN) fails, options for subsequent attempts are limited.

Purpose: Evaluate the clinical and radiographic outcomes of conversion total hip arthroplasty (THA) using a modular stem following a CMN failure.

Simultaneous Bilateral Femoral Neck Fracture Due to a Tonic-Clonic Seizure and High-Dose Steroid Therapy.

Simultaneous bilateral femoral neck fractures (FNFs) are extremely rare and usually associated with an underlying condition affecting the bone quality and mineralization. Convulsions have also been described as a possible cause, mostly as a consequence of epilepsy, hyponatremia, and hypocalcemia. We present a 52-year-old female patient, with bilateral displaced FNFs due to a tonic-clonic seizure and high-dose steroid therapy related to a frontal lobe anaplastic oligodendroglioma brain tumor resection.

Unusual hematogenous infection in total knee replacement treated with one-stage revision surgery.

Septic arthritis due to (LM) is extremely rare and most infections due to this organism are seen in immunocompromised patients. We describe a patient without immunological compromise, with a late total knee arthroplasty infection caused by LM treated with one-stage revision surgery. She had an elevated erythrocyte sedimentation rate (79 mm/h) and C-reactive protein (13 mg/dL).

Cement leakage into the hip joint during TFN-A cement augmentation in a revision surgery of an extra-capsular hip fracture.

Introduction: The intra-articular migration of the spiral lamina or screw, after close reduction and internal fixation (CRIF) with an intramedullary cervicodiaphyseal nail (cut-through), is one of the most frequent postoperative complications. We present a patient with a cut-through and cement leakage into the hip joint after TFN-A cement augmentation and spiral lamina replacement.

Methods: A 83-year-old man, suffered a cut-through after CRIF of his left extracapsular hip fracture during the third postoperative month.

Unaddressed arterial injuries in revision total hip arthroplasty: mortality outcomes of a low-prevalence complication.

Purpose: Peri-operative major arterial haemorrhage after revision total hip arthroplasty (RTHA) is an odd but limb- and life-threatening complication. In this retrospective analysis, we sought to determine the prevalence of such injuries requiring selective catheter embolization or bypass after RTHA and to evaluate the associated mortality rate.

Methods: Between 1995 and 2016, 2524 RTHAs were performed at a high-volume centre (1031 one-stage revisions, 1370 two-stage revisions and 123 resection arthroplasties).

Impaction Bone Grafting or Uncemented Modular Stems for the Treatment of Type B3 Periprosthetic Femoral Fractures? A Complication Rate Analysis.

Background: Because the gold standard for the treatment of Vancouver type-B3 periprosthetic femoral fractures (PFFs) is yet to be defined, we sought to analyze the complication rate between the impaction bone grafting (IBG) technique with a cemented stem and reconstruction with an uncemented distally-fixed modular stem (DFMS).

Methods: We retrospectively studied 54 B3 PFFs operated between 2000 and 2016, comparing the complication rate of 33 patients treated with the IBG technique (group A) with 21 patients treated with a DFMS (group B). Median follow-up of groups A and B were 75 months (interquartile range [IQR], 36-111 months) and 55 months (IQR, 32-73 months), respectively (P = .

Are there any risk factors for developing complications with the use of retrievable vena cava filters in orthopaedic surgery?

Background: In high-risk patients, common prophylaxis may be insufficient to prevent thromboembolic events after orthopaedic procedures. In this scenario, a retrievable vena cava filter (VCF) could be considered as an alternative, although it's use remains controversial. Therefore, we asked: (1) what is the overall mechanical complication rate associated with the use of retrievable VCFs in orthopaedic surgery?, (2) what is the association with thromboembolic disease (TED) recurrence, post-thrombotic syndrome and/or major bleeding according to different surgical characteristics?, (3) What is the overall mortality rate attributed to VCF use?

Methods: We retrospectively analyzed a cohort of 68 patients who underwent orthopaedic surgery with a previous diagnosis of TED, in whom a retrievable VCF was placed.

THA conversion rate comparing decompression alone, with autologous bone graft or stem cells in osteonecrosis.

Introduction: Core decompression (CD) with or without the addition of autologous bone graft (CDBG) is currently the most widely accepted treatment for hip osteonecrosis in stages of pre-collapse. The use of bone marrow mesenchymal stem cells (CDSC) is emerging as a promising biological alternative. We sought to determine the total hip arthroplasty (THA) conversion rate for patients treated with CD, CDBG or CDSC.

Return to Sports and Recurrences After Arthroscopic Anterior Shoulder Stabilization in Martial Arts Athletes.

Background: The high demands to the glenohumeral joint and the violent shoulder blows experienced during martial arts (MA) could compromise return to sports and increase the recurrence rate after arthroscopic stabilization for anterior shoulder instability in these athletes.

Purpose: To report the functional outcomes, return to sports, and recurrences in a series of MA athletes with anterior shoulder instability treated with arthroscopic stabilization with suture anchors.

Study Design: Case series; Level of evidence, 4.

Outcomes of nondisplaced intracapsular femoral neck fractures with internal screw fixation in elderly patients: a systematic review.

Introduction: Although the preferred treatment for displaced femoral neck fractures in the elderly is hip arthroplasty, the treatment for impacted or undisplaced femoral neck fractures (UFNF) is still a subject of controversy. Our purpose was to systematically review studies of elderly patients with UFNF treated with internal fixation using screws: (i) what is the reported mortality; (ii) what is the reoperation rate; (iii) what are the clinical and radiological outcomes; and (iv) what is the methodological quality of the included studies?

Methods: This systematic review was performed through a search of PubMed and the Cochrane database using a structured search algorithm including studies enrolling patients older than 60 years old, with UFNF treated with internal fixation using screws. Our literature search returned 950 studies and 11 were selected for final abstraction.