Comparison of conventional socket attachment and bone-anchored prosthesis for persons living with transfemoral amputation - mobility and quality of life.

Background: For patients with transfemoral amputation experiencing issues with their sockets, bone-anchored prosthesis systems are an alternative and sometimes the only way to be mobile and independent. The present cross-sectional study aimed to investigate the gait performance and quality of life of a group of patients treated with bone-anchored systems compared to those of participants treated with a conventional socket-suspended prosthesis.

Methods: A total of 17 participants with a socket-suspended and 20 with a bone-anchored prosthesis were included.

Photon-counting CT of elbow joint fractures: image quality in a simulated post-trauma setting with off-center positioning.

Background: Photon-counting detector computed tomography (PCD-CT) has the potential to provide superior image quality compared to energy-integrating detector computed tomography (EID-CT). We compared the two systems for elbow imaging in off-center arm positioning, 90° flexion, and cast fixation in a simulated post-trauma setting.

Methods: The institutional review board approved the study protocol.

Quality of lower limb preoperative skin preparation using colorless versus colored disinfectants-results of an experimental, randomized study in a close to reality setting.

Background: Appropriate preoperative skin cleansing is important to control surgical site infections. Both colored and colorless skin disinfectants are available, however certain types of skin preparation, such as octenidine-dihydrochloride with alcohol have a long residual antimicrobial effect but are available only in colorless form. We hypothesized that colorless skin disinfectants lead to more incomplete skin preparation of lower limbs compared to colored agents.

Twenty-four months of bacterial colonialization and infection rates in patients with transcutaneous osseointegrated prosthetic systems after lower limb amputation-A prospective analysis.

Background: Transcutaneous osseointegrated prosthesis systems (TOPS) are alternative rehabilitation methods to socket prosthetics, after limb amputation. TOPS compromise a two-step surgery: starting with the implantation of the stem which is then followed by the creation of the transcutaneous stoma through which the exoprosthesis can be connected. Immediately after surgery, this opening is permanently exposed to pathogens.

Posterior acetabular wall morphology is an independent risk factor that affects the occurrence of acetabular wall fracture in patients with traumatic, posterior hip dislocation.

Purpose: Smaller posterior acetabular walls have been shown to independently influence the risk for bipolar hip dislocation. We asked whether differences would also be observed in patients with traumatic posterior hip dislocation with and without posterior wall fractures.

Methods: Between 2012 and 2020 we observed 67 traumatic posterior hip dislocations.

Analysis of Stomal Bacterial Colonialization After Transcutaneous Osseointegrated Prosthetic Systems Surgery.

This cohort study evaluates bacterial colonization of the stoma after transcutaneous osseointegrated prosthetic systems surgery.

Comparison of functional outcome and patient satisfaction between patients with socket prosthesis and patients treated with transcutaneous osseointegrated prosthetic systems (TOPS) after transfemoral amputation.

Purpose: The aim of this retrospective analysis was to investigate and evaluate differences in functional outcome and satisfaction of patients treated with a TOPS and patients using socket prosthesis after transfemoral amputation.

Methods: This retrospective comprehensive analysis included patients from a single hospital, and was conducted between February 2017 and December 2018. Overall n = 139 patients with prosthesis were included and divided into two comparable groups (socket- and TOPS group).

Icing the Pain-Ultrasound-Guided Cryoablation of Symptomatic Post-Amputation Stump Neuroma.

Purpose: To assess the feasibility and outcome of ultrasound-guided cryoablation in patients with a sensitized stump neuroma after limb amputation.

Material And Methods: Seven patients (3 females, 4 males; mean age 42 years) were included in this retrospective study. Ultrasound-guided cryoablation of a previously identified painful stump neuroma was performed.

[Single Assessment Numeric Evaluation (SANE)-a promising and valid measuring tool related to patient-reported outcome measures (PROM)].

Patient-reported outcome measures (PROMs) are clinical measurement tools that capture the health status and outcomes of medical interventions from the patient's perspective. The aim of this study was to investigate the correlation between the Oxford Elbow Score (OES) and Single Assessment Numeric Evaluation (SANE) retrospectively. The study examined 86 patients between December 2018 and February 2019 using the Pearson correlation coefficient between SANE and OES.

Patella baja after intramedullary nailing of tibial fractures, using an infrapatellar/transtendinous approach, predicts worse patient reported outcome.

Purpose: After intramedullary nailing of tibial shaft fractures using an infrapatellar/transtendinous approach, several patients suffer anterior knee pain. We suspect that the approach is associated with soft tissue scars and the development of a postoperative patella baja. The goal of the study is to investigate whether the development of patella baja is associated with worse subjective outcomes.

The impact of lifestyle on forearm fractures in children: A retrospective cohort analysis.

Background And Objectives: Forearm fractures are frequent in children. It is important to identify predisposing factors for increased fracture risk. This retrospective analysis aimed to investigate the correlation between forearm fractures in children and co-factors such as age, TV consumption, consumption of soft drinks, the kind of soft drinks consumed as well as physical activity in daily life and BMI.

Cementless total hip arthroplasty with anatomic-shaped implants. Does the minimal invasive anterolateral technique influence the stem position or subsidence in contrast to the standard lateral approach?

Introduction: Using cementless stems in total hip arthroplasty (THA) has revealed variable results. The risk for early aseptic loosening has been associated to certain surgical approaches and implant designs. This study determines misalignment of collared/collarless stems and the rate of subsidence using the anterolateral approach (ALA) compared to implantations via the direct lateral approach (DLA).

Osseoperception in transcutaneous osseointegrated prosthetic systems (TOPS) after transfemoral amputation: a prospective study.

Background: Endo-exo prosthetics (EEP), which belongs to the transcutaneous osseointegrated prosthetic systems (TOPS), provides an alternative bone-anchored rehabilitation method for transfemoral amputees. It led to the question of whether transmitted forces from prosthetic feet are perceptible by osseoperception resulting in proprioceptive feedback of ground conditions.

Objectives: The following hypotheses emerged for our trial with the null hypothesis: EEP fitting after transfemoral amputation does not influence osseoperception.

[Translation, Adaptation, Reliability and Validity of the German Version of the Prosthesis Mobility Questionnaire 2.0 (PMQ) on Patients with Major Lower Limb Amputation].

Purpose: The aim of this prospective validation study was to translate the Prosthesis Mobility Questionnaire 2.0 (PMQ) into German based on a guideline, following by psychometric testing for its validity and reliability using classical test theory.

Methods: The PMQ was translated into German according to ISPOR guidelines using double forward and double backward translations, finalized by pilot testing (N=10).

Low Diagnostic Value of Synovial Aspiration Culture Prior to Reimplantation in Periprosthetic Joint Infection.

Background/aim: We aimed to determine the diagnostic value of the synovial aspiration culture prior to reimplantation in two- (or more) stage exchange of periprosthetic joint infection.

Patients And Methods: This was a retrospective study, spanning over ten years including all synovial cultures of patients with two- (or more) stage exchange due to periprosthetic joint infection.

Results: A total of 183 patients were included, mean age was 66.

A Retrospective Analysis of the Initial Effect of COVID-19 on German Prehospital Care During Lockdown in Germany.

Introduction: This retrospective cohort analysis examines the impact of the COVID-19 pandemic in the prehospital setting in Germany. The data of two emergency physician response units of a northern German region with 1.2 million citizens was analyzed retrospectively.

Management, outcome, and novel classification system of periprosthetic fractures in patients with transcutaneous osseointegrated prosthetic systems (TOPS)-a retrospective cohort analysis.

Introduction: Transcutaneous osseointegrated prosthetic systems (TOPS) are anchored prosthetic systems for major limb loss. Sometimes TOPS patients suffer from periprosthetic fractures. The aim of this study was to analyze the management and outcomes of periprosthetic fractures in patients with TOPS and to introduce a novel classification system for this entity.

Analysis of extracorporeal membrane oxygenation in trauma patients with acute respiratory distress syndrome: A case series.

Background: Thoracic trauma is the most common injury in polytrauma patients. Often associated with the development of an acute respiratory distress syndrome (ARDS), conservative treatment options are very restricted and reach their limits quickly.

Objective: Extracorporeal membrane oxygenation (ECMO) is a wellestablished therapy in cardio-thoracic surgery and internal medicine intensive care units.

[Transcutaneous osseointegrated prosthetic systems after major amputation of the lower extremity : A retrospective 3-year analysis].

Introduction: Transcutaneous osseointegrated prosthetic systems (TOPS) are an established optional procedure for the prosthetic treatment of amputations. Under the term endo-exo-prosthesis (EEP), the endosteal adapted exo-prosthesis (Dr. Grundei®) is currently used as the only standard prosthesis for clinical application in Germany.

Risk factors for dislocation after bipolar hemiarthroplasty: a retrospective case-control study of patients with CT data.

Purpose: Bipolar hemiarthroplasty has been shown to have a lower rate of dislocation than total hip arthroplasty. However, as the influencing risk factors for bipolar hemiarthroplasty dislocation remain unclear, we aimed to analyse patient and surgeon-specific influencing risk factors for bipolar hemiarthroplasty dislocation.

Methods: We retrospectively analysed patients who were operated between 2012 and 2018 and had dislocated bipolar hemiarthroplasty and matched them to patients without a dislocated bipolar hemiarthroplasty, operated between 2018 and 2019.

[Patient volume, diagnosis and injury mechanisms in a level 1 trauma center at the beginning of the COVID-19 pandemic in comparison to the mean of the 3 previous years : A retrospective, epidemiological evaluation of 4967 patients].

Background: As part of the COVID-19 pandemic, political decisions were made to reduce social interaction and to reduce the number of infections. The aim was to create capacities for the in-hospital care of the patients.

Objective: The aim of the study was to check whether a reduction in the number of trauma patients compared to the mean of the previous 3 years could be observed.

Fluoroscopic Intraoperative Images Produce Higher Image Quality and Decrease Total Radiation Exposure Compared to Radiographic X-ray Images in Patients After Primary Total Knee Arthroplasty.

Background/aim: Proper radiographic documentation of implant alignment is needed to analyse malrotation and malpositioning. We examined whether intraoperative fluoroscopic images can achieve more accurate image quality than postoperative radiographic X-ray images.

Patients And Methods: We prospectively analysed 30 consecutive patients after total knee arthroplasty (TKA).