Clinical evidence indicates that an unintended increase in the medial proximal tibial angle (MPTA) can occur during slope-reducing osteotomies, which is most relevant anterior cruciate ligament (ACL) deficient knees. Therefore, purpose of this three-dimensional (3D) simulation study to assess how axial or coronal hinge axis rotation affect alignment parameters closing wedge osteotomies (ACWO). The hypothesis states a neutral (NHA) ACWO prevents changes and alignment. A 3D surgical was used...

A. This study aimed to evaluate the relationship between femoral component positioning and incidence of periprosthetic fractures in Oxford unicompartmental knee arthroplasty (UKA), as well effects size preoperative coronal lower limb alignment on fracture risk. B. A retrospective single-center was conducted, including 1,642 cases medial UKA performed July 2015 December 2022. Patients with symptomatic isolated osteoarthritis meeting specific selection criteria underwent surgery using either...

Abstract Purpose While medial closing wedge distal femoral osteotomy (MCWDFO) has been used to address patella instability combined with valgus malalignment, its impact on patellofemoral parameters remains uncharted. Hence, this study seeks establish a three‐dimensional (3D) planning of MCWDFO and measure effect the tibial tubercle ‐ trochlear groove distance (TTTG) through simulation calculation. Methods stepwise increment one‐degree varisation (1°–15°) was performed 3D surface models 14...

Background: Patients with complex proximal tibial plateau fractures (TPFs) tend to overestimate the prognosis of their injury, potentially due factors such as a limited understanding, optimism, and influence pain intensity. Understanding reasons behind this misperception is crucial for healthcare providers effectively communicate patients establish realistic expectations treatment outcomes. The purpose study was analyze outcomes TPFs, particular focus on patient-reported outcome measures...

Abstract Purpose Preoperative planning for medial open wedge high tibial osteotomies (HTOs) and lateral distal femur (DFOs) commonly uses height to guide accurate correction. However, it is unclear if this parameter influenced by intraoperative variations in osteotomy entry point or length. This study hypothesized that angle remains constant during planning, while varies depending on hinge points. Methods Whole leg radiographs of 40 patients who underwent HTO DFO (2018–2024) were analysed...

Abstract Arthroscopy has emerged as a crucial technique in modern orthopedic surgery, offering significant advantages over traditional open procedures. However, the steep learning curve and need for advanced psychomotor skills presents challenges training residents effectively. This study aimed to assess development of arthroscopic skills, research involvement, impact COVID-19 pandemic among Germany. A prospective cross-sectional survey was conducted members German-speaking Society Joint...

Background: The evaluation of tibial plateau fractures (TPF) encompasses the assessment clinical–functional and radiological parameters. In this study, authors aimed to investigate potential correlation between these parameters by utilizing both modified Rasmussen score. Methods: retrospective monocentric study conducted at a level-I trauma center, patients who underwent surgery January 2014 December 2019 due TPF were included. score prior injury, 1-year postoperatively, during last...

Background: Various studies have shown the benefit of three-dimensional (3D) computed tomography (CT) reconstruction and especially 3D printing in treatment tibial plateau fractures (TPFs). This study aimed to investigate whether mixed-reality visualization (MRV) using glasses can provide a for CT and/or planning strategies complex TPFs. Methods: Three TPFs were selected processed imaging. Subsequently, presented specialists trauma surgery (including reconstruction), MRV (hardware: Microsoft...

Abstract Objective In recent years, the trauma mechanisms and fracture types in tibial plateau fractures (TPF) have changed. At same time, treatment strategies expanded with establishment of new classification systems, extension diagnostics surgical strategies. Evidence-based recommendations for are rare. The aim this study is to assess extent standardization complex TPF. Material methods For study, specialists surgery/orthopaedics were presented thin-slice CT data sets three TPFs including...

: Aseptic loosening is one of the leading causes stem revision. Einzel Bild Röntgen Analyse-Femoral Component Analysis allows for detection distal migration, which used as a predictive factor implant longevity. This study aims to demonstrate migration behavior cemented collared anatomical stem.

Abstract Purpose This retrospective single-center study aimed to investigate incidence and risk factors influencing tibial periprosthetic fractures (TPF) in Oxford unicompartmental knee arthroplasty (UKA), with a specific focus on component positioning sizing. Methods A total of 2063 patients medial UKA using the Oxford® mobile partial implant were analyzed between July 2014 September 2022. Various preoperative postoperative radiographic parameters determining pre- alignment positioning,...

Although treatment strategies of knee joint dislocations have evolved, there is still no consensus on the best method and timing. New therapeutic concepts suggest that early one-stage treatment, including suturing bracing cruciate ligaments in acute dislocation, are leading to improved functional results. This study aimed evaluate midterm outcome following traumatic dislocation determine whether influenced by surgical management, patient habitus or concomitant injuries. In this retrospective...

Background: Aseptic loosening is one of the most-common causes failure cementless stems. Einzel Bild Röntgen Analyse-Femoral Component Analysis (EBRA-FCA) allows diagnosis stem migration, which can be considered a factor in predicting implant survival. The current study aimed to present migration behavior tapered proximally anchored straight stem. Methods: This retrospective reviewed all consecutive patients who received CBC (Mathys AG, Bettlach, Switzerland) between 2005 and 2019. We...

Abstract Background The ascending or descending extended biplanar tibial cut in open wedge high osteotomy (owHTO) not only changes the lower limb anatomy coronal plane but also leads to different three-dimensional (3D) patellofemoral joint. This study aimed perform a comprehensive analysis of dynamic biomechanical knee joint using multibody simulation model. Methods Thirteen 3D computer models derived from tomography scans were used for owHTO. Osteotomies with simulated each height 6 12 mm...

Abstract Purpose Cartilage defects are a common pathology in active people and affect quality of life. A treatment option is with minced cartilage (MC). As conservative therapy has limited effect, surgical treatments vary terms procedure results. modified technique for autologous repair presented here. Method MC was by adding synovial sealant. This improves the stability graft, allowing to proliferate. The tissue potential stimulate implanted cartilage, which promotes healing regeneration....