Wearable technology for mobility measurement in orthopedics and traumatology: a comparison of commercially available systems.

Background: Wearable activity sensors offer valuable insights into physical activity and are increasingly used in clinical and rehabilitation settings. However, most are designed for healthy individuals, necessitating a thorough evaluation of their applicability for pathological gait patterns. This study aims to assess the accuracy of commercially available wearables in measuring gait patterns among patients with lower limb injuries compared to healthy individuals.

Fulfillment of expectations and patient satisfaction following surgical treatment of complex proximal tibial fractures.

Aim: The aim of this study was to investigate on fulfillment of expectations and patient satisfaction after surgical treatment of complex proximal tibial fractures.

Methods: In this prospective study 114 patients who suffered a complex tibial fracture (AO/OTA-Type B and C) were enrolled. At follow-up, based on the Hospital For Special Surgery-Knee Surgery Expectations Survey (HFSS-KSES), an individualized questionnaire was used to evaluate whether the preoperative formulated expectations had been fulfilled.

Return to Skiing After Proximal Tibial Fracture: Postoperative Reality and Initial Expectations.

The aim of this study was to investigate patient-reported outcomes of patient expectations and fulfillment of expectations in alpine skiers who had a skiing accident and suffered a complex proximal tibial fracture (AO/OTA-Type B or C) which was treated surgically with open reduction and internal fixation. In this prospective study, 38 consecutive patients who suffered a complex tibial fracture (AO/OTA-Type B and C) caused by a skiing accident were evaluated. Before surgical treatment with open reduction and internal fixation, patient expectations were evaluated regarding outcomes on knee functionality (e.

Long-Term Outcomes Following Single-Stage Reamed Intramedullary Exchange Nailing in Apparently Aseptic Femoral Shaft Nonunion with Unsuspected Proof of Bacteria.

The aim of this study was to evaluate detection rates and risk factors for unsuspected proof of bacteria, as well as clinical and radiologic outcomes following femoral shaft nonunion without clinical signs of infection treated by a single-stage surgical revision procedure including reamed intramedullary exchange nailing. A retrospective cohort study was performed in a European level I trauma center between January 2015 and December 2022. Fifty-eight patients were included who underwent reamed intramedullary exchange nailing as a single-step procedure for surgical revision of posttraumatic diaphyseal femoral nonunion without any indications of infection in medical history and without clinical signs of local infection.

Sailing through the southern seas of air-sea CO flux uncertainty.

The Southern Ocean is among the largest contemporary sinks of atmospheric carbon dioxide on our planet; however, remoteness, harsh weather and other circumstances have led to an undersampling of the ocean basin, compared with its northern hemispheric counterparts. While novel data interpolation methods can in part compensate for such data sparsity, recent studies raised awareness that we have hit a wall of unavoidable uncertainties in air-sea [Formula: see text] flux reconstructions. Here, we present results from autonomous observing campaigns using a novel platform to observe remote ocean regions: sailboats.

Adjunct treatment with ketamine enhances the therapeutic effects of extinction learning after chronic unpredictable stress.

Post-traumatic stress disorder (PTSD) is a debilitating illness characterized by dysfunction in the medial prefrontal cortex (mPFC). Although both pharmacological and cognitive behavioral interventions have shown some promise at alleviating symptoms, high attrition and persistence of treatment-resistant symptoms pose significant challenges that remain unresolved. Specifically, prolonged exposure therapy, a gold standard intervention to treat PTSD, has high dropout rates resulting in many patients receiving less than a fully effective course of treatment.

Impact of keel saw blade design and thickness on the incidence of tibial plateau fracture and tibial implant-loosening in cementless medial UKR.

Background: Tibial plateau fractures and tibial implant- loosening are severe complications in cementless unicompartmental knee replacement (UKR). The tibial keel preparation is particularly demanding and different saw blades can be used. It was hypothesized that different blade designs and thickness have an influence on the frequency of tibial plateau fractures and implant-loosening in cementless medial UKR.

The role of low-grade infection in the pathogenesis of apparently aseptic tibial shaft nonunion.

Purpose: Aim of this study was to determine the rate of low-grade infection in patients with primarily as aseptic categorized tibial shaft nonunion and lack of clinical signs of infection.

Methods: In a retrospective study between 2006 and 2013, all patients who underwent revision surgery for treatment of tibial shaft nonunion without clinical evidence of infection were assessed. Bacterial cultures harvested during nonunion revision, C-reactive protein (CRP) and/or white blood cell (WBC) values at hospital admission, outcome, and epidemiological data were analyzed.

Implantation Accuracy of a Lateral Unicompartmental Knee Arthroplasty: A Hoffa´s Fat Pad-Preserving Medial Approach Versus the Transpatellar Lateral Approach.

Background: A small proportion of patients suffer from isolated lateral osteoarthritis where the sole lateral unicompartmental knee arthroplasty (UKA) is a possible treatment option. There, both a medial and a lateral surgical approach can be considered. This study should answer the question whether the lateral approach is superior to a modified medial approach in terms of implantation accuracy and subjective outcome.

Patients with complex proximal tibial fractures overestimate the prognosis of their injury.

Purpose: To investigate, if patients with complex proximal tibial fracture have realistic expectations on open reduction and internal fixation.

Methods: 114 patients (mean 49 years, SD ± 13) with closed AO-type B and C proximal tibial fracture were grouped (group B, respectively C). Prior to surgery expectations concerning knee function, pain, return to work/sports, and the risk for osteoarthritis was assessed with the Hospital for Special Surgery-Knee Surgery Expectations Survey (HFSS-KSE) and a non-validated ten-item survey.

No Need to Worry? Anxiety and Coping in the Entrepreneurship Process.

Understanding experiences of and responses to anxiety is foundational to developing robust theories of entrepreneurial behavior. Using open-ended, vignette and graphical elicitation interviews with 77 entrepreneurs, we inductively investigate the experience of and coping responses to anxiety during the entrepreneurship process. We develop a comprehensive and dynamic goal-striving model to explain experiencing and coping with entrepreneurial anxiety by integrating empirical findings with appraisal and control theories.

Regional Wind Variability Modulates the Southern Ocean Carbon Sink.

The Southern Ocean south of 35°S accounts for approximately half of the annual oceanic carbon uptake, thereby substantially mitigating the effects of anthropogenic carbon dioxide (CO) emissions. The intensity of this important carbon sink varies considerably on inter-annual to decadal timescales. However, the drivers of this variability are still debated, challenging our ability to accurately predict the future role of the Southern Ocean in absorbing atmospheric carbon.

A review of platelet derived growth factor playing pivotal role in bone regeneration.

This article is focused on the literature review and study of recent advances in the field of bone grafting, which involves platelet-derived growth factor (PDGF) as one of the facilitating factors in bone regeneration. This article includes a description of the mechanism of PDGF for use in surgeries where bone grafting is required, which promotes future application of PDGF for faster bone regeneration or inhibition of bone growth if required as in osteosarcoma. The important specific activities of PDGF include mitogenesis (increase in the cell populations of healing cells), angiogenesis (endothelial mitoses into functioning capillaries), and macrophage activation (debridement of the wound site and a second phase source of growth factors for continued repair and bone regeneration).

Accuracy of patient-specific guided glenoid baseplate positioning for reverse shoulder arthroplasty.

Background: The accuracy of reproducing a surgical plan during shoulder arthroplasty is improved by computer assistance. Intraoperative navigation, however, is challenged by increased surgical time and additional technically difficult steps. Patient-matched instrumentation has the potential to reproduce a similar degree of accuracy without the need for additional surgical steps.

Bone morphogenic protein: an elixir for bone grafting--a review.

Bone morphogenetic proteins (BMPs) are multifunctional growth factors that belong to the transforming growth factor beta superfamily. This literature review focuses on the molecular biology of BMPs, their mechanism of action, and subsequent applications. It also discusses uses of BMPs in the fields of dentistry and orthopedics, research on methods of delivering BMPs, and their role in tissue regeneration.

The role of modularity in primary total hip arthroplasty.

A combined series of 795 primary SROM (DePuy, Warsaw, Ind) stems have been reviewed. The mean follow-up is 11 years; 2 (0.25%) were revised for aseptic stem loosening.

MR imaging of the thrower's shoulder. Internal impingement, latissimus dorsi/subscapularis strains, and related injuries.

In conclusion, internal impingement apparently occurs in nearly all patients and is demonstrable on MR imaging. Pathologic changes associated with internal impingement seem to develop with repetitive placement of the arm into a position of extreme external rotation and abduction. Findings may include lesions of the posterior superior labrum, undersurface irritation, or tearing of the supraspinatus-infraspinatus junction near the attachment site and cystic changes of the posterior superior glenoid and posterior lateral greater tuberosity.

Seven-year follow-up of vertebral excision and reconstruction for malignant hemangioendothelioma of bone.

Study Design: This study reports the 7-year follow-up of an L5 vertebral hemangioendothelioma treated with tumor excision and allograft reconstruction stabilized with transpedicular fixation.

Objectives: A review of vertebral hemangioendotheliomas is provided to outline the rationale for surgical excision in such cases.

Summary Of Background Data: Radiation therapy has been the mainstay of therapy in surgically inaccessible lesions of the spine.

Posterior transvertebral osteotomy for adult thoracolumbar kyphosis.

Study Design: A retrospective case study was performed on the single-stage posterior transvertebral closing-wedge osteotomy for treatment of adult thoracolumbar kyphosis.

Summary Of Background Data: Forty-one consecutive cases in 38 patients available for follow-up, averaging 33 months (range 4-87 months), are included. All patients had severe pain and/or deformity; 51% of cases had previous fractures, and 49% had postlaminectomy failed back syndromes with kyphosis.

Artificial disc replacement. Preliminary report with a 3-year minimum follow-up.

Artificial disc replacement was performed in six patients with an average age of 55 years and average follow-up of 3.4 years. Four of the six patients had juxtafusion degeneration, one had multilevel disc degeneration, and one patient had isolated disc resorption.