- Pelvic and Acetabular Injuries
- Hip and Femur Fractures
- Orthopedic Surgery and Rehabilitation
- Spinal Fractures and Fixation Techniques
- Bone fractures and treatments
- Orthopaedic implants and arthroplasty
- Total Knee Arthroplasty Outcomes
- Shoulder Injury and Treatment
- Elbow and Forearm Trauma Treatment
- Pregnancy-related medical research
- Hip disorders and treatments
- Orthopedic Infections and Treatments
- Foot and Ankle Surgery
- Osteoarthritis Treatment and Mechanisms
- Shoulder and Clavicle Injuries
- Tendon Structure and Treatment
- Trauma Management and Diagnosis
- Abdominal Trauma and Injuries
- Musculoskeletal Disorders and Rehabilitation
- Spine and Intervertebral Disc Pathology
- Urological Disorders and Treatments
- Hernia repair and management
- Sports injuries and prevention
- Management of metastatic bone disease
- Rheumatoid Arthritis Research and Therapies
Katholisches Krankenhaus St. Johann Nepomuk
2025
Friedrich Schiller University Jena
2013-2024
Helios Klinikum Erfurt
2024
Jena University Hospital
2014-2024
Center for Clinical Studies
2011-2019
Unfallkrankenhaus Berlin
2014
Saarland University
2011
BG Klinikum Bergmannstrost Halle
2000-2008
Universitätsklinikum Erlangen
2006
Wittenberg University
2001-2002
Screw fixation of pelvic ring fractures is a common, but demanding procedure and navigation techniques were introduced to increase the precision screw placement. The purpose this case series was evaluation misplacement rate functional outcome percutaneous disruptions using 2D system.Between August 2004 December 2007, 44 442 patients with injuries included for closed reduction disrupted lesions an optoelectronic 2D-fluoroscopic based system. Operating fluoroscopy time measured, as well peri-...
Abstract The major burden of knee joint osteoarthritis (OA) is pain. Since in elder patients diabetes mellitus an important comorbidity OA, we explored whether the presence has a significant influence on pain intensity at end stage and aimed to identify factors possibly related changes diabetic patients. In 23 47 nondiabetic with OA undergoing total arthroplasty, assessed before operation using “Knee Injury Osteoarthritis Outcome Score”. Furthermore, synovial tissue, fluid (SF), cartilage,...
Culemann, Ulf MD, PhD; Marintschev, Ivan DM; Gras, Florian MD; Pohlemann, Tim PhD Author Information
The standard for operative treatment of acetabular fractures is open reduction and plate fixation. Recently, screw fixation-only methods through less invasive approaches are reported, but biomechanical data missing. Questions posed in this study (1) the static fixation strength different types equivalent to anterior column acetabulum? (2) does placement an additional infra-acetabular corridor increase independent used implant?Three groups screws (group II, titanium; group III, stainless...
Percutaneous iliosacral screw placement is the standard procedure for fixation of posterior pelvic ring lesions, although a transsacral path being used more frequently in recent years owing to increased fracture-fixation strength and better ability fix central bilateral sacral fractures. However, biomorphometric data osseous corridors are limited. Because these screws safe effective manner crucial using screws, we sought address precise anatomy detail look anatomic variation general...
Objectives: Screw navigation techniques with different image guidance [2-dimensional (2D) vs. 3-dimensional (3D) fluoroscopy] were evaluated for acetabular fracture surgery. Methods: Two-dimensional and 3D images analyzed visualization of osseous corridors: supra-acetabular, anterior column, posterior infra-acetabular. Forty guide wires per group placed in synthetic pelvis a prefabricated soft tissue envelope (10 group) using 2D or fluoroscopic procedure. Duration the single steps each...
An infraacetabular screw path facilitates the closure of a periacetabular fixation frame to increase plate strength in acetabular fractures up 50%. Knowledge variance corridor sizes and axes has substantial surgical relevance for safe placement.(1) What proportion healthy pelvis specimens have an that is 5 mm or larger diameter? (2) Does universal axis specific entry point exist? (3) Are there sex-specific differences size are these correlated with anthropometric parameters like age, body...
Background: Sacroiliac screw fixation in elderly patients with pelvic fractures remains a challenging procedure for stabilization due to impaired bone quality. To improve it, we investigated the biomechanical properties of combined oblique sacroiliac and transiliosacral versus additional cement augmentation this construct cadaver model osteoporotic bone, specifically respect maximal force stability fracture-site motion displacement rotation fragments. Methods: Standardized complete sacral...
Anatomical acetabular plates the anterior intrapelvic approach (AIP) were recently introduced to fix fractures through approach. Therefore, we asked following: (1) Does preshaped 3-dimensional suprapectineal plate interfere with or even impair fracture reduction quality? (2) How often does AIP need be extended by first (lateral) window of ilioinguinal approach?Observational case series.Two Level 1 trauma centers.Patients unstable in 2014.Fracture fixation anatomical-preshaped, ±...
It is hypothesized that ilio-sacro-iliacal corridors for a new envisioned pelvic ring implant (trans-sacral nail with two iliacal bolts = ISI-nail: nail) exists on the level of S1- or S2-vertebra in each patient. The 84 healthy human pelves (42x ♂; 42x ♀, 18-85 years) were measured high resolution CT scans using Merlin Diagnostic Workcenter Software. Trans-sacral (≥ 9 mm diameter) S1 and S2 found 62% 54% mean length [mm ± SD] 164 12.9 142 10.2. Corresponding iliac present all specimens...
The aim of this study was to detect characteristic structural changes in the cartilage composition osteoarthritis (OA), hereby improving arthroscopic identification pathology by use a non-destructive technique - NIRS (Near-Infrared Spectroscopy). 682 samples out 25 knees with OA were classified visually, using ICRS system, biophotonically, histologically (n = 66), Score Mankin and Otte, biochemically 616), determining content glycosaminoglycan (GAG) hydroxyproline (HP). Significant...
Background: Retrograde drilling of symptomatic osteochondral lesions (OCL) is usually controlled by fluoroscopy. Due to the limited visualization OCLs in acquired images and narrow access talar dome, this approach can be demanding. Several navigation procedures have been reported (2D- or 3D- fluoroscopy intraoperative CT-based) increase accuracy reduce radiation exposure. We developed a new arthroscopic-controlled procedure which free exposure reference base rigidly fixed bone. 17...
ABSTRACT (1) Can iliosacral osseous corridor diameters in sacral dysmorphism be enlarged by in‐out‐in screw placement at the posterior recessus? (2) Are lumbosacral transitional vertebra (LSTV) anatomical cause for dysmorphism? (3) there sex‐specific differences 594 multislice CT scans were screened and 55 data‐sets selected. Each pelvis was segmented manually cylindrical corridors (on level of S1 S2 vertebra) semi‐automatically determined. Corridor trajectories, −diameters −lengths...
Einführung: Der Goldstandard einer operativ behandelten Azetabulumfraktur ist die offene Reposition und interne Osteosynthese. In dieser Studie berichten wir über ersten Ergebnisse perkutanen Schraubenosteosynthese von 14 Azetabulumfrakturen unter Anwendung 2D‐fluoroskopisch basierten Navigation zur Reduktion der Strahlenbelastung, Implantatfehllage zugangsbedingten Komplikationen. Ergebnisse: Alle 36 Azetabulumschrauben konnten ohne perioperative Komplikationen bei mittleren...