[Translated article] Total hip arthroplasty in patients under 50 years old: Does cementless fixation have better results?

Background: Cementless fixation for hip arthroplasties has increased in the last decades, particularly in younger patients. The purpose of this study was to compare the long-term results three different types of fixations in patients under 50years old.

Methods: Cemented, hybrid and cementless fixations were assessed in patients under 50years old with a minimum follow-up of 8years.

Predicting cut-out in intertrochanteric fractures fixed with cephalomedullary nails: the role of tip-to-apex distance referenced to calcar (calTAD)--A retrospective analysis of 158 cases.

Introduction: The optimal positioning of the cephalic screw in intertrochanteric fractures (ITFs) is crucial for minimizing the risk of cut-out. This study assesses the predictive value of the tip-to-apex distance (TAD) and tip-to-apex distance referenced to calcar (calTAD) for cut-outs in patients undergoing fixation with cephalomedullary nails.

Method: We analyzed 158 consecutive patients aged over 65 years (mean 83.

Functional and radiological outcomes of total knee arthroplasty using posterior-stabilized U2 knee system: A retrospective study in 560 cases at five years of follow-up.

Purpose: The purpose of this study was to assess clinical and functional outcomes as well as the prosthesis survival rates of the U2 Knee system in primary total knee arthroplasty (TKA) with a minimum follow-up of four years.

Methods: We retrospectively analyzed 560 consecutively primary TKA performed between 2015 and 2019 due to osteoarthritis with a mean follow-up of 5.4 ± 1.

Maintenance of joint reduction and allograft incorporation in treating tibial plateau fractures. Retrospective case series using cortico-cancellous, non-irradiated, bone allograft.

Background: Restoring joint congruence and maintaining reduction until healing is imperative in treating tibial plateau fractures (TPF). The main objective of this study was to evaluate the feasibility of augmentation with impacted bone allograft (IBA) to prevent loss of reduction in tibial plateau fractures during healing and to evaluate its incorporation.

Methods: We retrospectively analyzed all patients with an acute, closed tibial plateau fracture (Schatzker II, III, IV) treated between 2010 and 2019 with open reduction and internal fixation (ORIF) and impacted bone allograft (IBA), with a minimum follow-up of 24 months.

Total hip arthroplasty in patients under 50 years old: Does cementless fixation have better results?

Background: Cementless fixation for hip arthroplasties has increased in the last decades, particularly in younger patients. The purpose of this study was to compare the long-term results three different types of fixations in patients under 50years old.

Methods: Cemented, hybrid and cementless fixations were assessed in patients under 50years old with a minimum follow-up of 8years.

Early appearance of radiolucent lines around total knee arthroplasty in rheumatoid arthritis patients. How does it impact the aseptic failure rate and functional outcomes at 13 years of follow-up?

Introduction: Aseptic total knee arthroplasty (TKA) failure has been associated with radiolucent lines. This study aimed to determine the impact of the early appearance of radiolucent lines (linear images of 1, 2, or > 2mm at the cement-bone interface) around the TKA on prosthetic survival and functional outcomes in rheumatoid arthritis (RA) patients during a 2-20 years follow-up.

Methods: We retrospectively analyzed a consecutive series of RA patients treated with TKA between 2000 and 2011.

Two-Stage Treatment of Chronic Periprosthetic Knee Infections With the Use of Gentamicin-Articulated Spacers: Success Rate and Predictors of Failure at the Minimum Seven-Year Follow-Up.

Background: The purpose of this study was to assess the survivorship rates of 2-stage treatment with gentamicin-impregnated polymethylmethacrylate articulated knee spacer in patients with chronic periprosthetic joint infection and to identify risk factors associated with failure.

Methods: We conducted a retrospective study among 73 patients with chronic periprosthetic joint infection after primary total knee replacement with articulated polymethylmethacrylate gentamicin-impregnated spacers (Subiton, Medical Labs, Ind Argentina), performed in a single institution with a minimum follow-up of 7 years. Clinical and functional assessment was performed with Knee Society Score and Western and Ontario McMaster Universities Osteoarthritis Index.

The polymicrobial infection affects the infection recurrence rate (not failure) in treating femoral and tibial bone defects with the Masquelet technique-a comparative retrospective analysis of 54 patients with mono- and polymicrobial infections.

Introduction: This study evaluated whether polymicrobial infection affects reoperation rates due to infection recurrence and treatment failure with the Masquelet technique in infected posttraumatic segmental bone defects of the femur and tibia.

Methods:  We retrospectively analyzed patients treated between 2012 and 2021 in two trauma referral centers. We evaluated demographic data, injury, treatment, infection recurrence, failures, and bone healing rates according to whether the infection was mono- or polymicrobial.

[Impact of the nail diameter on consolidation of tibial diaphyseal fractures. Retrospective analysis of 96 patients].

Introduction: the gold standard for tibial diaphyseal fracture treatment is represented by the intramedullary nail (IMN). This study aimed to assess the relevance of nail diameter in bone healing of tibial diaphyseal fractures.

Material And Methods: a retrospective study was conducted analyzing patients with closed 42 OTA/AO tibial fractures, treated with a reamed and locked IMN between January 2014 and December 2020.

Effectiveness of two-stage revision with commercial polymethylmethacrylate articulated hip spacer: similar outcomes against monomicrobial and polymicrobial hip periprosthetic joint infections.

: orthopaedic surgeons still struggle against a devastating complication - periprosthetic joint infection (PJI). A two-stage revision is considered the gold standard for chronic PJI for several authors, with success rates over 90 %. This strategy implies the remotion of the prosthesis and the implantation of an antibiotic-impregnated cement spacer in the joint.

Early appearance of radiolucent lines around total knee arthroplasty in rheumatoid arthritis patients. How does it impact the aseptic failure rate and functional outcomes at 13 years of follow-up?

Introduction: Aseptic total knee arthroplasty (TKA) failure has been associated with radiolucent lines. This study aimed to determine the impact of the early appearance of radiolucent lines (linear images of 1, 2, or >2mm at the cement-bone interface) around the TKA on prosthetic survival and functional outcomes in rheumatoid arthritis (RA) patients during a 2-20 years follow-up.

Methods: We retrospectively analyzed a consecutive series of RA patients treated with TKA between 2000 and 2011.

Pre-fracture ambulation capacity, Charlson comorbidity index, and dementia as predictors of functional impairment after bipolar hemiarthroplasty for unstable intertrochanteric fracture. A retrospective analysis in 158 octogenarian patients.

Unlabelled: Background: the primary purpose of this study was to assess the ambulatory capacity 12 months after surgery in patients that underwent bipolar hemiarthroplasty (BH) due to unstable intertrochanteric fractures (UITF). Secondly, to identify which preoperative variables influenced these modifications.

Methods: We retrospectively analyzed a consecutive series of patients older than 80 years with UITF treated with BH between 2010 and 2019.

The relevance of the number of distal locking planes and nail to canal ratio in bone healing after intramedullary nailing in tibial shaft fractures.

Introduction: The objective of this retrospective study was to assess the effect of the nail to canal ratio and the number and configuration of distal locking screws in bone healing in tibial shaft fractures.

Methods: We analyzed 223 consecutive tibial shaft fractures treated with reamed intramedullary nailing between January 2014 and December 2020. We recorded and evaluated the nail to canal ratio (NCR) and the number and configuration of distal locking screws.

Stress shielding in total knee replacements: Comparative analysis between titanium and all-polyethylene bases at 10 years follow-up.

Objective: The aim of this retrospective study was to assess bone resorption due to stress shielding in total knee replacement (TKR), comparing titanium bases (TiB) versus all polyethylene bases (APB), analyzing its incidence, progression and mechanical consequences after 10 years of follow-up.

Methods: We evaluated two groups of patients undergoing TKR, one treated with TiB and the other with APB, operated consecutively between 2004 and 2009 with a diagnosis of idiopathic gonarthrosis and a minimum of 10 years of follow-up. Deen's radiographical method was used to assess tibial bone resorption.

Bipolar hemiarthroplasty in unstable intertrochanteric fractures in elderly patients. The predictive value of the Charlson Comorbidity Index in 1-year mortality.

Background: Hip fractures have a significant impact on morbidity and mortality in the elderly. : We retrospectively evaluated the predictive role of the Charlson Comorbidity Index (CCI) for 1-year mortality in elderly patients with unstable intertrochanteric hip fractures (ITHF) treated with bipolar hemiarthroplasty. The secondary objective was to identify other relationships, if any, between the variables recorded and mortality.

The effectiveness of antibiotic cement-coated nails in post-traumatic femoral and tibial osteomyelitis - comparative analysis of custom-made versus commercially available nails.

: The first objective of this retrospective study was to assess infection control rates in patients with chronic post-traumatic osteomyelitis (CPTO) of the femur or tibia treated with antibiotic cement-coated nails. The second objective was to compare the efficacy of custom-made nails versus commercially available antibiotic-coated nails in terms of infection control and need for reoperation. : We reviewed a consecutive series of CPTO patients treated with antibiotic-coated nails who had a minimum follow-up of 24 months.

Distal fixation stems for revision of total hip replacement.

The purpose of this study was to retrospectively assess patients treated with modular, non-cemented, tapered, fluted, distal fixation stems. We included patients with 24 months mínimum follow-up. Diagnosis that led to revisions were described.

How do the new Olympic sports compare with the traditional Olympic sports? Injury and illness at the 2018 Youth Olympic Summer Games in Buenos Aires, Argentina.

Objective: To describe injuries and illnesses across traditional and new sports among the participating athletes of the Buenos Aires 2018 Youth Olympic Summer Games (BA YOG) (6-18 October 2018).

Methods: We recorded the daily number of athlete injuries and illnesses (1) through the reporting of all National Olympic Committee (NOC) medical teams and (2) in the polyclinic and medical venues manned by the BA YOG 2018 medical staff.

Results: In total, 3.