Kristian Nikolaus Schneider
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View article: Shoulder dislocations in professional male football (soccer) do not negatively affect long‐term quantitative and qualitative performance parameters: A retrospective analysis of 30 in‐match injuries of the German Bundesliga
Shoulder dislocations in professional male football (soccer) do not negatively affect long‐term quantitative and qualitative performance parameters: A retrospective analysis of 30 in‐match injuries of the German Bundesliga Open
Purpose Shoulder dislocations in professional football are increasing and regularly associated with substantial layoff times. However, research on players' postinjury performance remains limited. Therefore, the purpose of this study was to…
View article: What Is the Survivorship of Megaprosthetic Reconstruction Following the Resection of Renal Cell Carcinoma Long Bone Metastases and What Are the Potential Risk Factors for a Prosthetic Complication?
What Is the Survivorship of Megaprosthetic Reconstruction Following the Resection of Renal Cell Carcinoma Long Bone Metastases and What Are the Potential Risk Factors for a Prosthetic Complication? Open
Background: Long bone metastases are common in patients with metastatic renal cell carcinoma (RCC). One potential surgical treatment option is resection and megaprosthetic reconstruction. However, implant complications and survival are poo…
View article: Revision of medial unicompartmental knee arthroplasty—Not as uncomplicated as one thought? Analysis of survival and re‐revisions from a single centre
Revision of medial unicompartmental knee arthroplasty—Not as uncomplicated as one thought? Analysis of survival and re‐revisions from a single centre Open
Purpose Medial unicompartmental knee arthroplasty (UKA) is a treatment option for medial knee osteoarthritis, with an increase in surgeries over the last few years. However, the results of revision total knee arthroplasty (TKA) after a UKA…
View article: Systematic video analysis of shoulder dislocations in professional male football (soccer): Injury mechanisms, situational and kinematic patterns
Systematic video analysis of shoulder dislocations in professional male football (soccer): Injury mechanisms, situational and kinematic patterns Open
Purpose Shoulder dislocations in professional football are severe injuries with an increasing incidence and considerable layoff times. Unlike other football injuries, the mechanisms leading to shoulder dislocations are not well understood,…
View article: An Ergonomic Golf Grip Leads to Lower Forearm Muscle Activity - A Prospective Case Series of 30 Right-Handed Amateur and Professional Golfers
An Ergonomic Golf Grip Leads to Lower Forearm Muscle Activity - A Prospective Case Series of 30 Right-Handed Amateur and Professional Golfers Open
View article: Patients Regularly Return to Medium- and Low-Impact Types of Sporting Activities Following Distal Femoral or Proximal Tibial Replacement After Resection of a Primary Bone Sarcoma
Patients Regularly Return to Medium- and Low-Impact Types of Sporting Activities Following Distal Femoral or Proximal Tibial Replacement After Resection of a Primary Bone Sarcoma Open
The functional outcome is overall good with a regular resumption of sporting activities. Patients' age at surgery and higher preoperative sporting levels were associated with better functional outcomes and higher postoperative sporting act…
View article: Rate of Revision Surgery and Associated Risk Factors After Primary Arthroscopic ACL Repair With Additional Suture Augmentation
Rate of Revision Surgery and Associated Risk Factors After Primary Arthroscopic ACL Repair With Additional Suture Augmentation Open
Background: Recent studies have suggested promising patient-reported outcomes after primary anterior cruciate ligament (ACL) repair with additional suture augmentation (SA). Purpose: To evaluate the risk for revision surgery and identify p…
View article: Shoulder dislocations in professional male football (soccer): A retrospective epidemiological analysis of the German Bundesliga from season 2012/2013 until 2022/2023
Shoulder dislocations in professional male football (soccer): A retrospective epidemiological analysis of the German Bundesliga from season 2012/2013 until 2022/2023 Open
Purpose Injuries exert a detrimental impact on the team performance in professional football. Shoulder dislocations are known for their severity and often cause substantial lay‐off times. However, there is a notable gap in the general unde…
View article: How shoulder immobilization after surgery influences daily activity — a prospective pedometer-based study
How shoulder immobilization after surgery influences daily activity — a prospective pedometer-based study Open
Purpose Immobilization, especially of the lower extremity, after orthopaedic surgery has been associated with reduced physical activity. Previous interventions from our study group showed even in young, healthy people reduced activity leve…
View article: Endoprosthetic Reconstruction of the Proximal Humerus with an Inverse Tumor Prosthesis
Endoprosthetic Reconstruction of the Proximal Humerus with an Inverse Tumor Prosthesis Open
Reconstructing the proximal humerus after tumor removal is challenging due to muscle and bone loss. The current methods often result in poor shoulder function. This study assessed the long-term functional and oncological outcomes of using …
View article: Distal Humeral Replacement in Patients with Primary Bone Sarcoma: The Functional Outcome and Return to Sports
Distal Humeral Replacement in Patients with Primary Bone Sarcoma: The Functional Outcome and Return to Sports Open
Distal humeral replacement (DHR) is a limb-salvage option for the endoprosthetic reconstruction of bone defects following the resection of a primary bone sarcoma. As primary bone sarcomas are only occasionally located around the distal hum…
View article: The Role of Single Positive Cultures in Presumed Aseptic Total Hip and Knee Revision Surgery—A Systematic Review of the Literature
The Role of Single Positive Cultures in Presumed Aseptic Total Hip and Knee Revision Surgery—A Systematic Review of the Literature Open
(1) Background: Prior to revision hip (THA) or knee arthroplasty (TKA), periprosthetic low-grade infection (PJI) should be ruled out. Despite advances in preoperative diagnosis, unsuspected positive cultures (UPCs) may occur in initially p…
View article: What Is the Risk of Dislocation and Revision in Proximal Femoral Replacement with Dual-mobility Articulation After Two-stage Revision for Periprosthetic Hip Infection?
What Is the Risk of Dislocation and Revision in Proximal Femoral Replacement with Dual-mobility Articulation After Two-stage Revision for Periprosthetic Hip Infection? Open
Background Dislocation is a major complication of revision THA after two-stage exchange for periprosthetic joint infection (PJI). The likelihood of dislocation can be particularly high if megaprosthetic proximal femoral replacement (PFR) h…
View article: Function and return to sports after proximal humeral replacement in patients with primary bone sarcoma
Function and return to sports after proximal humeral replacement in patients with primary bone sarcoma Open
Background Improved patient and limb survival rates have led to an increased interest in the functional outcome and return to sports of patients undergoing megaprosthetic reconstruction in musculoskeletal oncology. This study evaluates the…
View article: MUTARS® Humero pro Femur replacement: A novel reconstructive procedure after malignant bone tumor resection of the femur in young children
MUTARS® Humero pro Femur replacement: A novel reconstructive procedure after malignant bone tumor resection of the femur in young children Open
Limb-preserving surgery in young children suffering malignant bone tumor of the femur is challenging due to the specific anatomical conditions. Extendable tumor endoprostheses are often oversized, while custom-made endoprostheses do not pr…
View article: Diffusion-Weighted Imaging Prior to Percutaneous Sclerotherapy of Venous Malformations—Proof of Concept Study for Prediction of Clinical Outcome
Diffusion-Weighted Imaging Prior to Percutaneous Sclerotherapy of Venous Malformations—Proof of Concept Study for Prediction of Clinical Outcome Open
Prediction of response to percutaneous sclerotherapy in patients with venous malformations (VM) is currently not possible with baseline clinical or imaging characteristics. This prospective single-center study aimed to predict treatment ou…
View article: Erratum to ’Fungal Periprosthetic Knee Joint Infection in a Patient With Metamizole-Induced Agranulocytosis’ [Arthroplasty Today 6 (2020) 726-730]
Erratum to ’Fungal Periprosthetic Knee Joint Infection in a Patient With Metamizole-Induced Agranulocytosis’ [Arthroplasty Today 6 (2020) 726-730] Open
View article: Der belastungsinduzierte Hitzeschlag – Ein Fallbeispiel von einem Halbmarathon
Der belastungsinduzierte Hitzeschlag – Ein Fallbeispiel von einem Halbmarathon Open
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View article: Implant Survival, Clinical Outcome and Complications of Megaprosthetic Reconstructions Following Sarcoma Resection
Implant Survival, Clinical Outcome and Complications of Megaprosthetic Reconstructions Following Sarcoma Resection Open
Megaprosthetic reconstruction of segmental bone defects following sarcoma resection is a frequently chosen surgical approach in orthopedic oncology. While the use of megaprostheses has gained popularity over the last decades and such impla…
View article: Surgeons’ non-transparent facemasks challenge the physician–patient relationship in the orthopedic outpatient clinic of a tertiary university hospital during the COVID-19 pandemic: a prospective cohort study of 285 patients
Surgeons’ non-transparent facemasks challenge the physician–patient relationship in the orthopedic outpatient clinic of a tertiary university hospital during the COVID-19 pandemic: a prospective cohort study of 285 patients Open
Background and purpose — Facemasks play a role in preventing the respiratory spread of SARS-CoV-2, but their impact on the physician–patient relationship in the orthopedic outpatient clinic is unclear. We investigated whether the type of s…
View article: Prevalence of Musculoskeletal Diseases of the Upper Extremity Among Dental Professionals in Germany
Prevalence of Musculoskeletal Diseases of the Upper Extremity Among Dental Professionals in Germany Open
There is a high prevalence of musculoskeletal disorders among dentists. Suitable interventions are therefore needed to prevent musculoskeletal diseases and pain among dental professionals, with particular attention to female dentists.
View article: The Bateman-Type Soft Tissue Reconstruction around Proximal or Total Humeral Megaprostheses in Patients with Primary Malignant Bone Tumors—Functional Outcome and Endoprosthetic Complications
The Bateman-Type Soft Tissue Reconstruction around Proximal or Total Humeral Megaprostheses in Patients with Primary Malignant Bone Tumors—Functional Outcome and Endoprosthetic Complications Open
We aimed to evaluate the functional outcome and endoprosthetic complications following the Bateman-type soft tissue reconstruction around proximal or total humeral replacements in patients undergoing resection of a primary malignant bone t…
View article: Periprosthetic Stress Shielding of the Humerus after Reconstruction with Modular Shoulder Megaprostheses in Patients with Sarcoma
Periprosthetic Stress Shielding of the Humerus after Reconstruction with Modular Shoulder Megaprostheses in Patients with Sarcoma Open
(1) Background: Modular megaprosthetic reconstruction using a proximal humerus replacement has emerged as a commonly chosen approach after bone tumor resection. However, the long-term risk for revision surgery is relatively high. One facto…
View article: Ist die Polytraumaversorgung im aG-DRG-System defizitär?
Ist die Polytraumaversorgung im aG-DRG-System defizitär? Open
View article: Does the Duration of Primary and First Revision Surgery Influence the Probability of First and Subsequent Implant Failures after Extremity Sarcoma Resection and Megaprosthetic Reconstruction?
Does the Duration of Primary and First Revision Surgery Influence the Probability of First and Subsequent Implant Failures after Extremity Sarcoma Resection and Megaprosthetic Reconstruction? Open
Complications in megaprosthetic reconstruction following sarcoma resection are quite common. While several risk factors for failure have been explored, there is a scarcity of studies investigating the effect of the duration of surgery. We …
View article: Anchor Site Fracture Following Arthroscopic Rotator Cuff Repair – A Case Report and Review of the Literature
Anchor Site Fracture Following Arthroscopic Rotator Cuff Repair – A Case Report and Review of the Literature Open
Introduction: Fractures at the anchor site following arthroscopic rotator cuff repair are rare and only a few case reports have been described. We report two additional well-documented cases of this uncommon post-operative complication and…
View article: Melorheostosis of the Fossa Intercondylaris Femoris – A Case Report and Review of the Literature
Melorheostosis of the Fossa Intercondylaris Femoris – A Case Report and Review of the Literature Open
Introduction: Melorheostosis is a rare benign bone condition characterized by excessive segmental sclerosis of cortical bone being reminiscent of dripping candle wax. It typically affects the long bones and can cause impingement and nerve …
View article: The change in plasma D-dimer does not help to guide the timing of reimplantation in two stage exchange for periprosthetic joint infection
The change in plasma D-dimer does not help to guide the timing of reimplantation in two stage exchange for periprosthetic joint infection Open
View article: [Imminent fracture of the tibia due to an osteolytic lesion caused by an intraosseous tenosynovial giant cell tumor : An unusual clinico-histopathological constellation].
[Imminent fracture of the tibia due to an osteolytic lesion caused by an intraosseous tenosynovial giant cell tumor : An unusual clinico-histopathological constellation]. Open
View article: Acrodermatitis chronica atrophicans
Acrodermatitis chronica atrophicans Open
Ein 60-jahriger Patient stellte sich aufgrund einer seit etwa sechs Wochen bestehenden, schmerzlosen, rechtsseitigen Unterschenkelschwellung in der Notfallsprechstunde vor.