Part 1: Outcome of Posterior Pelvic Ring Injuries and Associated Prognostic Factors - A Five-Year Retrospective Study of One Hundred and Sixty Five Operated Cases with Closed Reduction and Percutaneous Fixation.

Purposes: The aim of this study was to evaluate: 1. the outcome of pelvic ring fractures treated by closed reduction and percutaneous fixation, 2. the prognostic factors associated with a poor quality reduction, 3.

[One-year mortality after a hip fracture: prospective study of a cohort of patients aged over 75 years old].

Unlabelled: Hip fracture (HF) is a serious complication of the elderly who have suffered a fall. Studies focused on patients over 75 years old without excluding the most vulnerable are not frequent. Before we can think about the creation of an orthogeriatric unit, we evaluated the mortality rate one year after a HF only of patients over 75 years old and we identified associated factors with mortality, functional status and living.

Operative versus non-operative treatment of displaced acetabular fractures in elderly patients.

Background: Acetabular fracture treatments in elderly patients are not well codified.

Purpose: The aim of the study was to determine if, for active elderly patients, the clinical results after surgical treatment of displaced acetabular fractures are better than for non-operative treatment.

Methods: All active patients over 60 years with a Parker score higher than 6, managed for displaced acetabular fracture between 2005 and 2014, were included in this single-center retrospective study.

Optimization of perioperative management of proximal femoral fracture in the elderly.

Proximal femoral fracture in elderly subjects is a major event that is life-threatening in the medium-to-long term. Advanced age, male gender and number of comorbidities largely account for high mortality and require geriatric expertise. Protein-energy malnutrition and bone demineralization increase mortality.

Total Talar Prosthesis Replacement after Talar Extrusion.

Dislocation of the talus is a serious and extremely rare injury, with 86 cases reported in the published data in 20 years. The reference standard for case management involves replacement of the dislocated talus to restore the height and function of the tibiotalar joint. The risk of avascular necrosis remains very high, and the standard treatment in such cases is tibiotalar arthrodesis.

Epidemiology and treatment of acetabular fractures in a level-1 trauma centre: Retrospective study of 414 patients over 10 years.

Background: Epidemiological studies of acetabular fractures (AFs) are scarce and, to our knowledge, the most recent one from France, by Letournel and Judet, dates back to 1993. Studies have suggested a decrease in high-energy AFs contrasting with an increase in low-energy AFs due to the longer life expectancy. However, a French case-series study failed to confirm these data.

Part 2: outcome of acetabular fractures and associated prognostic factors-a ten-year retrospective study of one hundred and fifty six operated cases with open reduction and internal fixation.

Questions/purposes: The aim of this study was to identify prognostic factors associated with a poor quality of reduction and their relationships.

Methods: Data from medical charts for all patients admitted with acetabular fractures operated by open reduction and internal fixation (ORIF) from 2005 to 2014 were extracted. A total of 156 patients with a mean age of 40.

Posterior tibial slope accuracy with patient-specific cutting guides during total knee arthroplasty: A preliminary study of 50 cases.

Background: Patient-specific cutting guides were recently introduced to facilitate total knee arthroplasty (TKA). Their accuracy in achieving optimal implant alignment remains controversial. The objective of this study was to evaluate postoperative radiographic outcomes of 50 TKA procedures with special attention to posterior tibial slope (PTS), which is difficult to control intraoperatively.

Prevalence of protein-energy malnutrition in hospital patients over 75 years of age admitted for hip fracture.

Introduction: One percent of falls in over-75 years old cause hip fracture (HF). Protein-energy malnutrition (PEM) is associated with falls and fracture. PEM screening and perioperative nutritional management are recommended by the European Society of Parenteral and Enteral Nutrition, yet data on nutritional status in elderly HF patients are sparse.

Technique for reduction and percutaneous fixation of U- and H-shaped sacral fractures.

We describe an early reduction and percutaneous fixation technique for isolated sacral fractures. Strong manual traction combined with manual counter-traction on the torso is used to disimpact the fracture. Transcondylar traction is then applied bilaterally and two ilio-sacral screws are inserted percutaneously on each side.

Kyphoplasty versus vertebroplasty in osteoporotic thoracolumbar spine fractures. Short-term retrospective review of a multicentre cohort of 127 consecutive patients.

Background: Osteoporotic spine fractures induce a heavy burden in terms of both general health and healthcare costs. The objective of this multicentre study by the French Society for Spine Surgery (SFCR) was to compare outcomes after vertebroplasty and kyphoplasty in the treatment of osteoporotic thoracolumbar vertebral fractures.

Hypothesis: We hypothesised that differences existed between vertebroplasty and kyphoplasty, notably regarding operative time and reduction efficacy, from which criteria for patient selection might be inferred.

Evaluation of a computer-assisted navigation system for anterior cruciate ligament reconstruction: prospective non-randomized cohort study versus conventional surgery.

Background: Conventional reconstruction of the anterior cruciate ligament (ACL) is associated with a 15% failure rate. Computer-assisted navigation systems (CANS) have been developed to improve the accuracy of tunnel positioning.

Hypothesis: The use of a CANS for ACL reconstruction decreases the rate of failure, defined as IKDC grade C or D, compared to conventional ACL reconstruction.

Bone transport techniques in posttraumatic bone defects.

Introduction: The treatment of posttraumatic diaphyseal bone defects (BD) calls on a number of techniques including bone transport techniques: isolated shortening, compression-distraction at the fracture site, shortening followed by lengthening in a corticotomy distant from the site and segmental bone transport.

Patients And Methods: The multicenter retrospective study combined 38 cases: 22 cases of initial diaphyseal bone defect and 16 cases of secondary diaphyseal BD, sometimes associated with metaphyseal or metaphyseal-epiphyseal BD, involving the humerus, the forearm, the femur and the tibia. These techniques were mainly used on the lower extremity (33 cases), for the most part on the tibia (22 cases) in young men.

Analysis of anatomic positioning in computer-assisted and conventional anterior cruciate ligament reconstruction.

Introduction: Anterior cruciate ligament (ACL) reconstruction should be anatomic while achieving favorable anisometric behavior to avoid impingement with the femoral notch. Computerization enables these biomechanical conditions to be optimally fulfilled; but what of anatomic positioning? The present study compared the positioning of tibial and femoral tunnels, drilled using either a conventional ACL guide or a navigation system, using the anatomic foot-print areas of the native ACL.

Material And Methods: This cadaver study used computerized recording to compare tibial and femoral ACL attachment areas to the positioning of tunnels created either conventionally or under computer-guided navigation.

Macroscopic and microscopic process of long bone fracture healing.

The growth of each type of callus (cortical, medullary and periosteal) depends on the mechanical condition of fracture fixation (elastic fixation and instability or rigid immobilization), the type of treatment (non-operative, close or open surgical procedure, intra-medullary nailing, external fixation, plate...

Bone regeneration and limb lengthening.

Regeneration of bone in the presence of stable fixation and the maintenance of the osteogenic tissue (marrow, endosteum, nutrient artery, and periosteum) required another factor to stimulation of bone regeneration: incremental distraction produces bone of both endosteal and periosteal origin. The soft tissues undergo to same growth phenomenon. The mechanism of ossification occurs without intermediate fibrocartilage.

Anterior cruciate ligament reconstruction: assessment of the hamstring autograft femoral fixation using the EndoButton CL.

Unlabelled: The objective of this study was to evaluate the clinical and radiological results of a prospective, continuous series of 105 ACL reconstructions using the STG tendons fixed to the femur by an EndoButton CL, with more than 4 years of follow-up.

Hypothesis: The subjective and objective clinical results as well as the radiological results (tunnel enlargement) obtained by a cortical, extra-anatomic femoral fixation are at least equivalent to the results obtained with other types of femoral fixation systems.

Material And Methods: One hundred and five patients aged with a mean 26 years (range, 12-56 years) were operated on for an anterior cruciate ligament rupture using the same technique and by the same operator: four-strand STG fixed to the tibia by a double fixation--BioRCI-HA screw and staple--and on the femur by an EndoButton CL (Smith and Nephew).

Assessment of a percutaneous iliosacral screw insertion simulator.

Background: Navigational simulator use for specialized training purposes is rather uncommon in orthopaedic and trauma surgery. However, it reveals providing a valuable tool to train orthopaedic surgeons and help them to plan complex surgical procedures.

Purpose: This work's objective was to assess educational efficiency of a path simulator under fluoroscopic guidance applied to sacroiliac joint percutaneous screw fixation.

Simultaneous bilateral femoral neck fractures secondary to epileptic seizures: treatment by bilateral total hip arthroplasty.

Simultaneous bilateral femoral neck fracture following an epileptic seizure attack are rare. Open reduction and internal fixation remains the most used therapeutic option. Arthroplasty, carrying a high risk of dislocation is less often recommended.

Superficial femoral artery injury resulting from intertrochanteric hip fracture fixation by a locked intramedullary nail.

Unlabelled: Iatrogenic vascular injuries are uncommon during the course of proximal femur surgical procedures. We report the case of an 85-year-old female presenting with an intertrochanteric fracture, treated by anterograde (cephalocondylic) intramedullary nailing (Stryker gamma 3 nail) and complicated by a superficial femoral artery laceration at the level of the distal locking screw. Lower limb traction in adduction and internal rotation on the operating table might put at risk the superficial femoral artery during distal screw drilling and insertion.

Epiphyseal stapling of the proximal tibia for idiopathic genu valgum.

Purpose: The purpose of this study is to evaluate the clinical and radiological outcomes of hemiepiphysiodesis with a single medial staple of the proximal tibia in idiopathic genu valgum angular correction.

Methods: A retrospective review was performed identifying nine adolescents (18 knees) treated for idiopathic adolescent genu valgum by means of a bilateral hemiepiphysiodesis with a single staple of the proximal tibia. The intermalleolar distance (IMD) and hip-knee-ankle angle were measured at skeletal maturity.

[Computer assisted systems for arthroscopic reconstruction of anterior cruciate].

Objective: To introduce several navigation systems in anterior cruciate ligament reconstruction and to investigate the application of navigation systems for the improvement in reconstruction of the anterior cruciate ligament.

Methods: The related literature was reviewed extensively, and the main current computer assisted surgery systems (OthoPilot system, Bone Morphing system, Fluoroscopic-based system, etc) for utilization in the anterior cruciate ligament reconstruction were analyzed.

Results: The computer-assisted systems can enhance the accurate placement of tunnels.