Karl‐Heinz Frosch
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View article: Winkelstabile Plattenosteosynthese bei Patellafrakturen
Winkelstabile Plattenosteosynthese bei Patellafrakturen Open
View article: Muscle Injuries in 90 Professional Football Players Over 10 Consecutive Seasons: A Comparison of Two Classification Systems and Their Association With Return‐to‐Play Time
Muscle Injuries in 90 Professional Football Players Over 10 Consecutive Seasons: A Comparison of Two Classification Systems and Their Association With Return‐to‐Play Time Open
The British Athletics Muscle Injury Classification (BAMIC) and the Munich consensus statement (MCS) are both commonly used classification systems and have been established in recent years to categorize muscle injuries and estimate return‐t…
View article: Mixed reality enhances interobserver reliability in tibial plateau fracture classification compared to computed tomography, 3D computed tomography and 3D printing
Mixed reality enhances interobserver reliability in tibial plateau fracture classification compared to computed tomography, 3D computed tomography and 3D printing Open
Purpose Tibial plateau fractures present a diagnostic challenge due to complex morphology and demanding anatomy. Reliable diagnosis is essential for treatment planning and clinical outcomes. Prior studies showed benefits of 3D computed tom…
View article: Influence of the SARS-CoV-2 pandemic and infection on musculoskeletal function
Influence of the SARS-CoV-2 pandemic and infection on musculoskeletal function Open
As of September 2023, the number of SARS-CoV-2 infections worldwide has exceeded 770 million, with ongoing research recognizing its long-term health effects. This study investigates the effects of the pandemic on participants with and with…
View article: The aberrant anterior tibial artery should be respected and can be protected in high tibial osteotomy surgery
The aberrant anterior tibial artery should be respected and can be protected in high tibial osteotomy surgery Open
View article: Long-term follow-up after cervical en bloc resection as salvage surgery of spinal chondrosarcoma: illustrative case
Long-term follow-up after cervical en bloc resection as salvage surgery of spinal chondrosarcoma: illustrative case Open
BACKGROUND Chondrosarcomas are rare malignancies arising from the bone, primarily from the mobile spine. Multimodal treatment is the standard of care, with surgery as a cornerstone for local control since incomplete resection is the main d…
View article: Bone metabolism in heterotopic ossification is primarily influenced by the time after trauma or surgery, independent of anatomic location
Bone metabolism in heterotopic ossification is primarily influenced by the time after trauma or surgery, independent of anatomic location Open
Although several risk factors and prophylactic measures for heterotopic ossification (HO) have been identified in the past, knowledge about its growth and metabolic activity over time remains limited. This study aimed to identify specific …
View article: 3D printing improves preoperative decision making for patient positioning and surgical approach selection for tibial plateau fractures
3D printing improves preoperative decision making for patient positioning and surgical approach selection for tibial plateau fractures Open
Treatment of complex tibial plateau fractures remains a challenging task in clinical practice. Sufficient and appropriate preoperative decision making is essential for optimal treatment success and ultimately influences patient outcomes. R…
View article: Injury of the posterolateral corner of the knee does not lead to higher intra‐articular external tibial rotation in the MRI
Injury of the posterolateral corner of the knee does not lead to higher intra‐articular external tibial rotation in the MRI Open
Purpose The aim of this study was to evaluate external tibial rotation using magnetic resonance imaging (MRI) in patients with injuries to the posterolateral corner (PLC) of the knee. Methods A retrospective analysis of 26 patients with PL…
View article: Improvement of Accuracy of Femoral Tunnel Positioning in ACL Surgery for Low-Volume Surgeons Using Intraoperative Fluoroscopy
Improvement of Accuracy of Femoral Tunnel Positioning in ACL Surgery for Low-Volume Surgeons Using Intraoperative Fluoroscopy Open
Background: Less experienced surgeons have an increased risk for tunnel malpositioning as a predominant risk factor for failure of anterior cruciate ligament reconstruction (ACLR). Fluoroscopic guidance can improve the precision of tunnel …
View article: The Incidence of Posterolateral Tibial Plateau Fractures in the Setting of Knee Dislocations
The Incidence of Posterolateral Tibial Plateau Fractures in the Setting of Knee Dislocations Open
Background: Acute knee dislocations are devastating injuries that can be challenging for surgeons to treat. The bony integrity of the tibial plateau and the lateral femoral condyle has a fundamental meaning for translational and rotational…
View article: Geriatric Type II Fractures of the Dens Axis: Biomechanical Superiority of a New Osteosynthesis Plate Compared to Common Anterior Screw Fixation
Geriatric Type II Fractures of the Dens Axis: Biomechanical Superiority of a New Osteosynthesis Plate Compared to Common Anterior Screw Fixation Open
Study Design Biomechanical Basic Research. Objectives Type II Fractures of the dens axis (DFTII) are common fractures of the cervical spine in geriatric patients. A surgical approach is the anterior screw fixation (ASF). However, a disadva…
View article: Lateral epicondyle osteotomy results in improved radiologic and functional outcomes in severe lateral tibial plateau fractures: a retrospective cohort study
Lateral epicondyle osteotomy results in improved radiologic and functional outcomes in severe lateral tibial plateau fractures: a retrospective cohort study Open
Background This study evaluated the clinical and radiological outcomes of lateral tibial plateau fractures involving the central and postero-lateral regions, comparing an extended lateral approach with lateral epicondyle osteotomy (ECO) to…
View article: Whole-Organ Magnetic Resonance Imaging Score (WORMS) of the Knee in Professional Soccer Players
Whole-Organ Magnetic Resonance Imaging Score (WORMS) of the Knee in Professional Soccer Players Open
Objective The goal of our study was to assess the prevalence of osteoarthritis in the knee joint of active male professional soccer players by means of the semi-quantitative Whole-Organ Magnetic Resonance Imaging Score (WORMS). Design Magn…
View article: Analysis of Genu Varum in Young Male Professional Soccer Players
Analysis of Genu Varum in Young Male Professional Soccer Players Open
Background: Bowlegs (Genu varum) are well-known leg axis deformities in adult soccer players and are associated with an increased risk of knee osteoarthritis. The time of onset of genu varum is unknown. Purpose: To analyze the static and d…
View article: Cxcl9-deficiency attenuates the progression of post-traumatic osteoarthritis in mice
Cxcl9-deficiency attenuates the progression of post-traumatic osteoarthritis in mice Open
View article: Patientenspezifische 3D-Druck-Implantate und -Schablonen für Ellenbogen und Unterarm
Patientenspezifische 3D-Druck-Implantate und -Schablonen für Ellenbogen und Unterarm Open
Zusammenfassung Der 3D-Druck hat Einzug in die Orthopädie und Unfallchirurgie gehalten, insbesondere bei komplexen Eingriffen an Ellenbogen und Unterarm. Durch die Herstellung patientenspezifischer Implantate und chirurgischer Schablonen k…
View article: Dose-dependent association of hyperoxia and decreased favorable outcomes in mechanically ventilated patients with traumatic brain injury, a retrospective cohort study
Dose-dependent association of hyperoxia and decreased favorable outcomes in mechanically ventilated patients with traumatic brain injury, a retrospective cohort study Open
View article: The use of four K‐wires does not lead to a reduction of the MPTA in the context of a one‐dimensional tibial deflection correction of patients with ACL re‐rupture and pathologically increased tibial slope
The use of four K‐wires does not lead to a reduction of the MPTA in the context of a one‐dimensional tibial deflection correction of patients with ACL re‐rupture and pathologically increased tibial slope Open
Purpose Anterior tibial closing wedge osteotomy (ATCWO) has been shown to significantly reduce failure rates of revision anterior cruciate ligament (ACL) reconstructions in patients with a posterior tibial slope (PTS) ≥12°. Recent findings…
View article: Thin flap sulcus‐deepening trochleoplasty in patellar instability yields good functional outcomes without progressive cartilage deterioration in the short‐term follow‐up—A retrospective single‐surgeon cohort study
Thin flap sulcus‐deepening trochleoplasty in patellar instability yields good functional outcomes without progressive cartilage deterioration in the short‐term follow‐up—A retrospective single‐surgeon cohort study Open
Purpose Sulcus‐deepening trochleoplasty (TP) effectively treats patellofemoral (PF) instability (PFI) caused by high‐grade trochlear dysplasia (TD), but current evidence is based on small case series. We hypothesised, that TP would result …
View article: MCL augmentation using a peroneus longus split tendon autograft satisfactorily restores knee stability with no impairment in foot function and with a low failure rate for concurrent ACL reconstruction
MCL augmentation using a peroneus longus split tendon autograft satisfactorily restores knee stability with no impairment in foot function and with a low failure rate for concurrent ACL reconstruction Open
Purpose Addressing grade 2 and 3 medial‐sided instabilities during anterior cruciate ligament (ACL) reconstruction is crucial to reduce the risk of ACL graft failure. This study introduced a minimally invasive, medial collateral ligament (…
View article: Surgically treated acute knee dislocations with knee stiffness perform equally as well as non-stiff knees when treated with arthroscopic arthrolysis
Surgically treated acute knee dislocations with knee stiffness perform equally as well as non-stiff knees when treated with arthroscopic arthrolysis Open
Patients, whether undergoing LOA or not, performed equally well in terms of ROM and clinical scores at final follow up, while timing of LOA appears less critical. LOA is a simple, durable and safe method of treating ROM deficits in patient…
View article: Arthroscopic Shaver-based Harvest of Minced Cartilage Results in Reduced Chondrocyte Viability and Reduced Quality of Cartilaginous Repair Tissue Compared With Open Harvest and Conventional Fragmentation
Arthroscopic Shaver-based Harvest of Minced Cartilage Results in Reduced Chondrocyte Viability and Reduced Quality of Cartilaginous Repair Tissue Compared With Open Harvest and Conventional Fragmentation Open
On the basis of our findings, arthroscopic harvest of minced cartilage leads to reduced chondrocyte viability and ReCT quality. Accordingly, CMC and AMC cannot be regarded as synonymous techniques, as arthroscopic techniques seem to be les…
View article: Autologous matrix‐induced chondrogenesis provides better outcomes in comparison to autologous minced cartilage implantation in the repair of knee chondral defects
Autologous matrix‐induced chondrogenesis provides better outcomes in comparison to autologous minced cartilage implantation in the repair of knee chondral defects Open
Purpose In symptomatic mid‐sized focal chondral defects, autologous matrix‐induced chondrogenesis (AMIC) and minced cartilage implantation (MCI) offer two versatile treatment options. This study aimed to conduct a matched‐patient analysis …
View article: Does the extent of bone defects affect the time to reach full weight-bearing after treatment with the Masquelet technique?
Does the extent of bone defects affect the time to reach full weight-bearing after treatment with the Masquelet technique? Open
View article: Personalised blood pressure management during major noncardiac surgery and postoperative neurocognitive disorders: a randomised trial
Personalised blood pressure management during major noncardiac surgery and postoperative neurocognitive disorders: a randomised trial Open
View article: Influence of variable hinge positioning on coronal and sagittal alignment in uniplanar medial open‐wedge high tibial osteotomy
Influence of variable hinge positioning on coronal and sagittal alignment in uniplanar medial open‐wedge high tibial osteotomy Open
Purpose There is a high risk of increasing the posterior tibial slope (PTS) during medially opening‐wedge high tibial osteotomy (mowHTO). Most recently, the idea of intentional simultaneous coronal and sagittal correction, using uniplanar …
View article: Impact of body mass index on fracture severity, clinical, radiological and functional outcome in distal radius fractures: a retrospective observational study after surgical treatment
Impact of body mass index on fracture severity, clinical, radiological and functional outcome in distal radius fractures: a retrospective observational study after surgical treatment Open
Introduction Distal radius fracture (DRF) is one of the three most common fractures of the human body with increasing incidences in all groups of age. Known causes of increasing incidence, such as ageing of the population or increased obes…
View article: Arthroscopic and open reconstruction of the posterolateral corner of the knee have equally good clinical results: first results of a prospective 12-month follow-up study
Arthroscopic and open reconstruction of the posterolateral corner of the knee have equally good clinical results: first results of a prospective 12-month follow-up study Open
Purpose Arthroscopic reconstruction techniques for higher-grade posterolateral corner (PLC) injuries (Fanelli Type B, PoLIS LI-B) have not yet been validated in clinical studies. The open reconstruction technique described by Arciero is we…
View article: Enhancing Preoperative Planning in Tibial Plateau Fractures: A Comparative Study of 3D Printing's Impact on Surgical Decision-Making
Enhancing Preoperative Planning in Tibial Plateau Fractures: A Comparative Study of 3D Printing's Impact on Surgical Decision-Making Open
Background: Treatment of complex tibial plateau fractures remains a challenging task in clinical practice. Sufficient and appropriate preoperative decision making is essential for optimal treatment success and ultimately influences patient…