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Correct positioning of the calcar screw leads to superior results in proximal humerus fractures treated with carbon-fibre-reinforced polyetheretherketone plate osteosynthesis with polyaxial locking screws
BackgroundPlate osteosynthesis with implants made of carbon-fibre-reinforced polyetheretherketone (CFR-PEEK) has recently been introduced for the...
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The proximal humeral locking plate positioning to the pectoralis major tendon in achieving the proper calcar screw location: a cadaveric study
BackgroundProximal humeral fracture is the third most common of osteoporotic fracture. Most surgical cases were treated by fixation with anatomical...
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Trochanteric fractures: Tip-Apex distance, Calcar Tip-Apex distance, and Chang criteria—a multiple variable analysis
Failure of osteosynthesis is a common complication of the nailing of trochanteric fractures which typically occurs through form of cut-out. Tip-Apex...
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The effect of integrity of lesser tuberosity-medial calcar on postoperative outcome in the proximal humeral fracture
BackgroundIn proximal humeral fractures, the medial calcar is often considered an important stabilizing structure. When the medial calcar is...
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A biomechanical comparison of three fixation methods for unstable femoral neck fractures with medial calcar defect
BackgroundUnstable femoral neck fractures with medial calcar defects are difficult to manage. The optimal fixation methods for these fractures have...
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The effect of long calcar screws on the primary stability of 3-part, varus impacted proximal humeral fractures compared to short calcar screws: a real fracture simulation study
BackgroundComplex proximal humeral fracture ranks among the most common fracture types, especially in elderly patients. In locked plate fixation of...
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Investigation of Novel Radiological Parameters to Predict Treatment Failure and Ideal Surgical Interventions in Young Femoral Neck Fractures Treated with Triple Cannulated Screw: A Retrospective Analysis
IntroductionTreatment failure remains a challenge in young femoral neck fractures treated with triple cannulated screws (TCS). This study aims to...
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The effect of medial calcar support on proximal humeral fractures treated with locking plates
BackgroundStudies have reported mixed results on the importance of medial calcar support for the treatment of proximal humeral fractures. The purpose...
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Application of Intramedullary Calcar Support Plate and Lateral Locking Plate in Elderly Patients with Neer 3 and 4-Part Fractures of Proximal Humerus Through a Deltoid Splitting Approach
BackgroundThe reduction and fixation of Medial humeral calcar is difficult in the treatment of elderly proximal humerus Neer 3 and 4-part fractures...
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Efficacy of poller screw in addition to lag screw in the treatment of intertrochanteric fractures with proximal femoral nail: a biomechanical evaluation
PurposeThe most common type of failure in treating intertrochanteric fractures with proximal femoral nails is cut-out due to varus collapse. We aim...
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Calcar-guided short-stem total hip arthroplasty in fractures of the femoral neck: a prospective observational study of 68 hips
IntroductionThe indications for cementless short-stem total hip arthroplasty (THA) have been expanded due to encouraging results. However, no...
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Letter to the editor: Calcar fracture gap**: a reliable predictor of anteromedial cortical support failure after cephalomedullary nailing for pertrochanteric femur fractures
A recently published article by Song H et al. investigated the risk factors for anteromedial cortical support loss in pertrochanteric fractures...
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Calcar fracture gap**: a reliable predictor of anteromedial cortical support failure after cephalomedullary nailing for pertrochanteric femur fractures
BackgroundMaintaining anteromedial cortical support is essential for controlling sliding and decreasing postoperative implant-related complications....
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Preventing secondary screw perforation following proximal humerus fracture after locking plate fixation: a new clinical prognostic risk stratification model
IntroductionAfter locking plate (LP) fixation, secondary screw perforation (SSP) is the most common complication in proximal humerus fracture (PHF)....
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Strategies for managing the destruction of calcar femorale
BackgroundThe calcar femorale was identified long ago. However, our current understanding of the calcar is insufficient, and its related concepts are...
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Should cannulated screws be removed after a femoral neck fracture has healed, and how? A finite element analysis of the femur before and after cannulated screw removal
PurposeThe removal of three inverted triangular parallel cannulated screws after the femoral neck fracture healing is sometimes accompanied by...
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Conversion of failed internal fixation in proximal femur fractures using calcar-guided short-stem total hip arthroplasty
PurposeReoperations for secondary osteoarthritis, osteonecrosis, or hardware failure following failed internal fixation after intertrochanteric...
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Which head element is more effective for cement augmentation of TFNA? Helical blade versus lag screw
BackgroundEarly fixation and rehabilitation is the gold standard treatment for intertrochanteric femur fractures. Cement augmentation through...
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Predictive value of the deltoid tuberosity index for assessing the risk of screw cut-out
BackgroundReconstruction of the proximal humerus with a locking plate is often the first surgical approach for proximal humerus fractures. Screw...
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Compressive buttress compared with off-axial screw fixation for vertical femoral neck fractures in young adults: a prospective, randomized controlled trial
BackgroundTo compare the clinical outcomes of compressive buttress screw (CBS) fixation, a novel screw fixation strategy, to off-axial screw fixation...
