Validation of mediCAD® software for fully digital preoperative planning of total hip arthroplasty: a retrospective study.

Introduction: The planning step that precedes a total hip arthroplasty (THA) procedure is crucial. Digital planning software programs are being increasingly used, although few studies have reported on the reliability of such tools. Furthermore, no studies have been conducted on the mediCAD® software, despite it being widely used in France.

High Rates of Return to Play and Low Recurrence Rate After Arthroscopic Latarjet Procedure for Anterior Shoulder Instability in Rugby Players.

Purpose: To analyze the rate of return to play, changes in athletic level, and recurrence rate and to report subjective outcomes in a series of rugby players with anterior shoulder instability who underwent an arthroscopic Latarjet procedure.

Methods: A multicenter retrospective study done in 2 centers on rugby players who were operated on between January 2011 and December 2020 was performed. Rugby players who underwent arthroscopic Latarjet procedure for anterior shoulder stabilization with a minimum follow-up period of 2 years were included.

Comparative efficacy of the different cutting guides in unicompartmental knee arthroplasty: A systematic-review and network meta-analysis.

Background: Several cutting guides including conventional, navigation, patient specific instrumentation (PSI) and robotic are currently used in unicompartmental knee arthroplasty (UKA). A network meta-analysis was conducted to compare the most widely used cutting guides regarding the improvement of radiological, functional outcomes and the rate of complications.

Methods: Randomised controlled trials (RCTs) comparing UKA cutting guides were searched in electronic databases, major orthopaedics journals, and oral communications in major orthopaedics meetings, until May 1st, 2022.

Systematic alignments yield balanced knees without additional releases in only 11% of knee arthroplasties: a prospective study.

Purpose: The literature suggests that "forgotten" knees are the most stable knees postoperatively. The main objective of our study was to determine whether a systematic alignment (mechanical, anatomical or kinematic) makes it possible to stabilise the operated joint in extension and in flexion.

Methods: This monocentric prospective cohort study was conducted between May 1st, 2021 and October 31st, 2021.

Mid- to long-term clinical outcomes after press-fit short stem reverse shoulder arthroplasty.

Background: To date, a limited number of studies report mid- to long-term outcomes of press-fit short stem shoulder arthroplasty. The purpose of this study was to report and analyze mid- to long-term outcomes in a series of patients that received press-fit short stem reverse shoulder arthroplasty (RSA). The hypothesis was that press-fit short stem RSA would be a safe and effective treatment with satisfactory mid- to long-term outcomes.

Does delayed weight bearing in the surgical management of fractures of the upper end of the femur in the elderly lead to more complications? A prospective study.

Introduction: Fractures of the upper end of the femur (FUEF) lead to increased mortality and dependence in the elderly. However, mechanical complications after surgery persist in up to 20% of cases, which may justify a delayed resumption of full weight bearing to protect the osteosynthesis during consolidation.

Hypothesis: Our hypothesis was that the late resumption of weight bearing in an elderly population after a FUEF would be limited by a higher frequency of medical complications.

Specific Design of a Press Fit Humeral Stem Provides low Stress Shielding in Reverse Shoulder Arthroplasty at minimum 5 Years FU.

Unlabelled: Press fit fixation is becoming more popular in RSA to preserve, in theory, bone capital. Several studies report that bone resorption can be very high around humeral stems depending on their size, shape and mode of fixation. The aim of the current study is to mid-term follow-up clinical and radiological result of a press fit ovoid regular stem RSA in non acute trauma cases.

Use of a locking stem for reverse shoulder arthroplasty is a rare but reliable option.

Introduction: RSA is widely used in the treatment of complex trauma or degenerative changes of the shoulder. Strong primary fixation of the stem is necessary to prevent any loosening of the stem and subsequent revision. Presently, cement fixation or press-fit fixation are two options for humeral fixation, though each has its own limitations and risks.

Resection and extemporaneous coverage of a soft tissue sarcoma with a pedicled groin flap in the trochanteric region: Technical note.

The main issues pertaining to oncological surgery of the musculoskeletal system are tumour resection with sufficient margins, and the coverage of inherent defects. We report the use of a pedicled cutaneous groin flap as coverage for a trochanteric defect following an oncological resection of a grade III pleomorphic soft tissue sarcoma in a 75-year-old patient. This flap is not routinely used in the coverage of a defect in this region.

Ankle CT scan allows better management of posterior malleolus fractures than X-rays.

Purpose: Undiagnosed and undertreated posterior malleolus fractures lead to early ankle instability and arthritis. A preoperative CT scan could improve the management of those fractures. This study assessed the benefits of a systematic ankle CT scanner to diagnose and manage posterior malleolus fracture.

Comparative Efficacy of the Different Surgical Approaches in Total Knee Arthroplasty: A Systematic-Review and Network Meta-Analysis.

Background: Several surgical approaches including midvastus, subvastus, mini-parapatellar, quadriceps-sparring (QS) and parapatellar are currently used to perform total knee arthroplasty (TKA). Since none of published study exhibited a simultaneous comparison of all of them, a network meta-analysis has been conducted to compare the most widely used knee surgical approaches regarding the improvement of functional outcomes and the range of motion (ROM).

Methods: Randomised controlled trials (RCTs) comparing TKA approaches were searched in electronic databases, major orthopedics journals, and oral communications, ClinicalTrials.

Are There Differences in Accuracy or Outcomes Scores Among Navigated, Robotic, Patient-specific Instruments or Standard Cutting Guides in TKA? A Network Meta-analysis.

Background: Several kinds of cutting guides, including patient-specific instrumentation, navigation, standard cutting guides, accelerometer-based navigation, and robotic guidance, are available to restore a planned alignment during TKA. No previous study has simultaneously compared all of these devices; a network meta-analysis is an especially appealing method because it allows comparisons across approaches that were not compared head-to-head in individual randomized controlled trials.

Questions/purposes: We performed a network meta-analysis to determine whether novel approaches to achieving implant alignment, such as patient-specific instrumentation, navigation, accelerometer-based navigation, and robotic guidance, provide any advantage over standard cutting guides in terms of: (1) hip-knee-ankle (HKA) alignment outliers greater than ± 3°, (2) outcome scores (1989 - Knee Society Score and WOMAC score) measured 6 months after surgery, or (3) femoral and tibial implant malalignment (greater than ± 3°), taken separately, in the frontal and sagittal plane, as well as other secondary outcomes including validated outcome scores 1 and 2 years after surgery.

Custom-made macroporous bioceramic implants based on triply-periodic minimal surfaces for bone defects in load-bearing sites.

The architectural features of synthetic bone grafts are key parameters for regulating cell functions and tissue formation for the successful repair of bone defects. In this regard, macroporous structures based on triply-periodic minimal surfaces (TPMS) are considered to have untapped potential. In the present study, custom-made implants based on a gyroid structure, with (GPRC) and without (GP) a cortical-like reinforcement, were specifically designed to fit an intended bone defect in rat femurs.

Is the position of dual-mobility cup in THA for femoral neck fractures optimal? A retrospective study.

Introduction: Few studies have examined the relationship between the indication of total hip arthroplasty (THA) and the quality of its technical achievement. Implants mispositioning could happen more frequently while THA is performed on acute proximal femur fracture cases. The purpose of this study was to compare the frontal inclination (FTA) of double-mobility cups (DMC) in patients undergoing THA for hip osteoarthritis or fracture.