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.

Management of Infected Segmental Bone Defects with Antibiotic-Cement-Coated Nails in the First Stage of the Masquelet Technique. Implantation and Removal of the Cement Spacer around the Nail: A Technical Note.

Infected segmental bone defects (ISBD) of the femur and tibia pose a significant challenge. Traditionally, bone fixation in the first stage of the Masquelet technique involves external fixation, but intramedullary nail fixation has recently gained popularity. Despite this, little attention has been focused on the elaboration, implantation, and removal of the spacer around the nail.

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.

Distal femur fractures in elderly treated with internal fixation or distal femoral replacement - retrospective cohort study on 75 patients assessing functional outcomes, reoperations, and mortality.

Purpose: This cohort study aimed to describe the functional outcomes, complications, and mortality of patients over 65 with acute distal femur fractures treated with open reduction and internal fixation (ORIF) or distal femoral replacement (DFR).

Methods: We retrospectively analyzed all patients older than 65, operated consecutively for a distal femur fracture treated with ORIF or DFR. We included 75 patients (9 33A, 5 33B, and 61 33C AO/OTA fractures), 55 treated with ORIF, and 20 with DFR.

Bilateral simultaneous total knee arthroplasty with and without patellar resurfacing. A prospective single surgeon series with a minimum follow-up of 7 years.

Background: Total knee arthroplasty (TKA) is the most effective treatment for end-stage adult knee osteoarthritis, but it has been reported that patient satisfaction may vary. A malfunction of the patellofemoral joint may produce anterior knee pain (AKP) for several reasons. While some surgeons systematically resurface the patella despite the risk of potential complications such as fracture, loosening, or wear of the patella, others prefer to preserve it to reduce AKP and revision rates.

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.

Does the type of medial plate fixation matter for supplemental fixation of distal femur fractures manage with a lateral pre-contoured locked plate? A Biomechanical study.

Introduction: Fixation of distal femur fractures with a lateral pre-contoured locking plate provides stable fixation and is the standard treatment in most cases, allowing early range of motion with a high rate of union. However, in situations, the stability achieved with the lateral plate alone may be insufficient, predisposing to fixation failure. The objective of the study was to compare, in synthetic bone models, the biomechanical behaviour of the fixation with a distal femur lateral pre-contoured locking plate solely and associated with a 3.

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.

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.

Does the distal nail position impact the rates of misalignment and bone union in distal tibial fractures?

Purpose: This retrospective study aimed to assess the impact of distal nail placement on misalignment and healing rates in distal tibial fractures.

Methods: We reviewed all patients with distal tibial fracture treated with intramedullary nailing between 2015 and 2021, and a minimum follow-up of 12 months. Distal nail positioning was determined according to the Triantafillou zones.

Periprosthetic fracture management of the proximal femur.

The most common periprosthetic fractures occur around the hip. The most widely used classification is the Vancouver classification, and management requires careful planning and skill in both arthroplasty and fracture surgery. This article presents an overview of the diagnosis, classification, and management of periprosthetic fractures of the proximal femur.

Antibiotic cement-coated rigid locked nails in infected femoral and tibial nonunion. Reoperation rates of commercial versus custom-made nails.

Introduction: The objective of this study is to assess bone union, infection control, and reoperation rates in a series of patients with infected femoral or tibial nonunion treated with antibiotic-cement-coated rigid nails and to compare the results obtained with custom-made nails versus commercial nails.

Methods: We retrospectively analyzed a series of consecutive patients with infected nonunion of the femur or the tibia treated with antibiotic-cement-coated rigid nails between January 2010 and 2020. We assessed patients' distinctive characteristics, initial injury, type of nail used (custom-made nail with vancomycin or commercial nail with gentamicin), success rate (bone union + infection control), reoperation rate, and failure rate.

Definitive fixation in the first stage of the induced membrane technique for septic segmental bone defects. Why not?

Background: Infected segmental bone defects (I-SBD) are challenging and complex to manage. This study aimed to show the outcomes achieved in I-SBD of the femur and tibia, treated with the induced membrane technique performing a definitive bone stabilization in the first stage.

Methods: We retrospectively reviewed 30 patients with infected non-articular segmental bone defects of the femur (n = 11) and tibia (n = 19), operated consecutively between January 2015 and May 2021.

Open tibial shaft fracture management in Argentina: an evaluation of treatment standards in diverse resource settings.

Background: Argentina is a country with varying access to orthopedic surgical care. The Argentine Association of Trauma and Orthopedics (AATO) "Interior Committee" was developed to address potential regional differences and promote standardization of orthopedic trauma care. The paper assesses the level of national standardization of the management of open tibia fractures across 9 provinces in Argentina.

Peri-implant femoral fractures: Challenges, outcomes, and proposal of a treatment algorithm.

Purpose: Non-prosthetic peri-implant fractures are challenging injuries. Multiple factors must be carefully evaluated for an adequate therapeutic strategy, such as the state of bone healing, the type of implant, the time and performed personnel of previous surgery, and the stability of fixation. The aim of this study is to propose a rationale for the treatment.

Culture-negative Peri-prosthetic Joint Infection after Total Hip Arthroplasty Treatment Protocol and Outcomes in Acute and Chronic Cases.

The treatment of culture-negative periprosthetic joint infections (CN PJI) of the hip represents complex entities. We, as a result of this, report on 12 cases. Irrigation and debridement (I&D) with implant retention were performed in acute cases and two-stage revisions in chronic infections.

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.

Fragility fracture systems, Latin America perspective.

Osteoporosis is a worldwide epidemic, affecting an average of 30% to 50% of those over 50 years of age in Latin America. Resulting from it is another epidemic, that of fragility fractures, which adversely affects morbidity and mortality of this population. Increasing in their incidence, fragility fractures are expected to occur in 1 in 3 women and 1 in 5 men over 50years of age during their lifetimes.

Open Tibial Fracture Treatment in Argentina: Reoperation Rates Following Surgical Management.

Unlabelled: The purposes of the present study were (1) to characterize open tibial fractures and their treatment in trauma centers located across different regions of Argentina and (2) to evaluate the rates of and indications for reoperation after the surgical treatment of such fractures.

Methods: This retrospective multicenter study evaluated open tibial fractures in Argentina that were operatively treated by experienced orthopaedic trauma surgeon-members of the Argentine Association of Orthopedic Trauma (AATO) between January 2015 and June 2020. Data were collected from 13 hospital databases; 8 hospitals were designated as "interior," and 5 hospitals were designated as "exterior.

Effectiveness of Nail Dynamization in Delayed Union of Tibial Shaft Fractures: Relationship Between Fracture Morphology, Callus Diameter, and Union Rates.

Objective: Dynamization has already been described as a secondary intervention for delay unions of tibial shaft fractures treated with intramedullary nailing. Although it's a common procedure, it is not widely supported in the literature. The purpose of this study was to determine the union rate of nail dynamization in cases of delayed union of diaphyseal tibial fractures, and assess the effect of fracture morphology on union rates.

Distal articular involvement in tibial shaft fractures: an evaluation of 125 consecutive cases.

Purpose: To report the incidence and morphology of ipsilateral distal articular involvement (DAI) in a consecutive series of tibial shaft fractures.

Method: A retrospective review was performed on 115 patients who underwent intramedullary nailing for tibia shaft fractures. Ankle evaluations included preoperative radiographs and computed tomography (CT) scans in all patients.

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.