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Dive into the research topics where Christian Konrads is active.

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Featured researches published by Christian Konrads.


SICOT-J | 2016

Gorham-Stout syndrome of the shoulder

Ulrich Brunner; Kilian Rückl; Christian Konrads; Maximilian Rudert; Piet Plumhoff

Introduction: Gorham-Stout syndrome (GSS) is a rare but severe subtype of idiopathic osteolysis. There are no guidelines for the treatment of GSS. We analysed different diagnostic and therapeutic regimes and we describe the sucessful treatment of GSS considering individual patient factors. Methods: We diagnosed three patients with shoulder-specific GSS using clinical, radiological and histopathological examinations. Two out of three patients with similar clinical appearances were treated non-operatively. One patient was treated by reverse shoulder arthroplasty. All patients were analysed retrospectively using clinical and radiological evaluation with a mean follow-up of 42 (range 30–50) months. Results: Two patients had few symptoms of GSS and were treated conservatively. One patient underwent arthroplasty, with a good clinical result. No additional therapy, such as radiation or anti-resorptive medications, was needed for the stable fixation of the prosthesis and the termination of osteolysis. In all patients we found good clinical outcomes with high patient satisfaction. Discussion: GSS is diagnosed after exclusion of infectious, malignant, and systemic disorders. The diagnosis should be supported by clinical, radiological, and histopathological characteristics of patients. Different humoral and cellular changes have been reported in GSS, but lack sufficient supporting evidence. GSS is associated with angiomatous and lymphatic malformations. The changes in GSS and the theories of its pathophysiology may reveal.


Mmw-fortschritte Der Medizin | 2015

Warum tut das Knie so weh

Christian Konrads; Jürgen Schultheiß; Stephan Reppenhagen; Maximilian Rudert; Thomas Barthel

ZusammenfassungDie Osteochondrosis dissecans des Kniegelenkes ist die häufigste osteochondrale Läsion überhaupt. Sie betrifft eher junge Menschen. Ihre Ursachen sind letztlich nicht geklärt. Sie lässt sich jedoch — rechtzeitig erkannt — gut behandeln. Verschaffen Sie sich einen Einblick in dieses Krankheitsbild!


Archive | 2018

Neutral-0-Methode

Christian Konrads; Piet Plumhoff

In diesem Kapitel sind die Prinzipien der Dokumentation von Gelenkbewegungen dargestellt. Hierfur stehen die Messblatter fur obere und untere Gliedmasen, fur die Finger sowie fur die Wirbelsaule zur Verfugung.


Archive | 2018

Sprunggelenk und Fuß

Christian Konrads; Matthias Walcher

Der strukturierte Weg zur orthopadischen Diagnose von Sprunggelenk und Fus beginnt mit der Uberprufung des Schuhwerks. Dann folgt die Inspektion, welche Gewolbeformen (unter Belastung), die Fersenbeinachse (Kalkaneusstellung), die Knochelachse (Talusstellung), die Vorfusstellung, die Stellung von Klein- und Groszehen umfasst, bevor eine Ganganalyse durchgefuhrt wird. Wahrend der Palpation werden palpatorische »landmarks« am medialen und lateralen Fus untersucht und eine Metatarsalgiediagnostik durchgefuhrt. Die Bewegungsprufung umfasst Groszehengrundgelenk, Dorsalextension/Plantarflexion im oberen Sprunggelenk, Supination/Pronation des Vorfuses und die Eversion/Inversion (subtalare Beweglichkeit). Spezielle Funktionstests stehen zur Verfugung: Ausenrotationstest nach Frick, Untersuchung von seitlicher Aufklappbarkeit, Talusvorschub und der intermetatarsale Drucktest bei Morton-Neurom sowie der Thompson-Drucktest (Wadenkneiftest). Die neurologische Untersuchung rundet die Diagnostik ab.


Archive | 2018

Brust- und Lendenwirbelsäule

Christian Konrads; Peter Raab

Der strukturierte Weg zur orthopadischen Diagnose von Brust- und Lendenwirbelsaule umfasst zunachst die Inspektion des Wirbelsaulenprofils in der Frontal- und Sagittalebene und den Kibler-Hautfaltentest. Ebenfalls gehoren Zehen- und Hackengang dazu. Des Weiteren werden der Ruckenindex nach Stagnara (Fleche cervicale, Fleche lombaire) und der Haltungstest nach Matthias erhoben. Mittels Palpation beurteilt man die Beckenstellung und pruft einen orientierenden Klopfschmerz, einen segmentalen Federungsschmerz, einen Facettendruckschmerz und die paravertebrale Muskulatur inkl. Muskelinsertionen. Eine Bewegungsprufung erhebt die Werte fur den Finger-Boden-Abstand, das Schober- und Ott-Zeichen sowie das Aussmas von Lateralflexion und Rotation. Im Rahmen der neurologischen Untersuchung werden ein eventuell vorliegendes Nervenwurzelkompressionssyndrom beurteilt und die Tests nach Lasegue und Bragard, der umgekehrte Lasegue-Test (Femoralisdehnungsschmerz) sowie eine neurologische Etagendiagnostik durchgefuhrt.


Archive | 2018

Der strukturierte Weg zur orthopädischen Diagnose

Christian Konrads; Piet Plumhoff

Der strukturierte Weg zur orthopadischen Diagnose beschreibt den allgemeinen Ablauf, die Anamnese mit aktuellen und fruheren Beschwerden, ggf. Erfragen des Unfallmechanismus sowie die klinische Untersuchung.


Knee Surgery and Related Research | 2018

Mesenchymal Stem Cells Isolated from the Anterior Cruciate Ligament: Characterization and Comparison of Cells from Young and Old Donors

Patrick Prager; Manuela Kunz; Regina Ebert; Ludger Klein-Hitpass; Jakob T. Sieker; Thomas Barthel; Franz Jakob; Christian Konrads; Andre F. Steinert

Purpose Mesenchymal stem cells (MSCs) isolated from the anterior cruciate ligament (ACL) share multiple characteristics of bone marrow-derived mesenchymal stem cells (BMSCs), allowing their use for regenerative therapies. Injuries to the ACL can affect people of all ages. This study assesses whether the regenerative potential of ACL-derived MSCs (ACL-MSCs) from old donors is as high as the potential of ACL-MSCs from young donors. Materials and Methods ACL-MSCs were isolated from ACL tissues obtained from young and old donors at the time of ACL reconstruction or arthroplasty. Proliferative capacity, multilineage differentiation potential (chondrogenic, osteogenic, and adipogenic lineages), and transcriptome-wide gene expression were assessed and compared between young and old donors. BMSCs of middle-aged donors served as an additional comparator. Results No substantial differences between ACL-MSCs from young and old donors were observed in their proliferative capacity and multilineage differentiation potential. The latter did not substantially differ between both ACL-MSC groups and BMSCs. Differential expression of genes related to the cytoskeleton and to protein dephosphorylation amongst other pathways was detected between ACL-MSCs from young and old donors. Conclusions Regenerative potential of ACL-MSCs from old donors was not substantially lower than that from young donors, suggesting that regenerative therapies of ACL tears are feasible in both age groups. In vivo studies of the effect of age on the efficacy of such therapies are needed.


Journal of orthopaedics | 2018

Surgical technique and clinical outcome of arthroscopic shoulder stabilization via suture anchors using the lasso-loop stitch

Christian Konrads; Sebastian Jovic; Kilian Rueckl; Annabel Fenwick; Thomas Barthel; Maximilian Rudert; Piet Plumhoff

During arthroscopic Bankart-repair the lasso-loop-stitch can be used. The clinical outcome of this technical modification to a broadly used procedure is not known. We followed-up 24 patients treated with this technique over 30 months. We found an excellent clinical outcome in 96% of all cases. The average Rowe-score was 96.3 points. The mean QuickDash was 2.8 points. Using the lasso-loop-stitch in arthroscopic Bankart-repair is safe and results in very good clinical outcomes. It might lead to an accentuated labral bump and enables secure knot-tying with knot-positioning away from the articular cartilage while avoiding the suture cutting through the tissue.


Zeitschrift Fur Orthopadie Und Unfallchirurgie | 2017

Arthroskopische Therapie bei spinoglenoidalem Ganglion

Kilian Rueckl; Christian Konrads; Thomas Barthel; Maximilian Rudert; Friedrich Boettner; Piet Plumhoff

Aims and Indications A paralabral ganglion cyst of the shoulder can cause neuropathy of the inferior branches of the suprascapular nerve. This can lead to atrophy of the infraspinatus muscle. Arthroscopic decompression of the cyst in combination with repair of the associated labrum tear appears to be an effective treatment option. Methods Initially the connection of the cyst to the joint in the area of the posterior rim of the glenoid is identified arthroscopically. Following the decompression of the cyst the labrum tear is repaired to avoid recurrence. The goal is the complete decompression of the ganglion cyst carefully protecting the infraspinatus branch. Concomitant intraarticular pathologies are also addressed. Conclusions In the literature arthroscopic treatment is superior to open surgical treatments. The degree of muscle atrophy at the time of surgery determines the prognosis for functional recovery. There is a lack of long-term outcome studies and publications of larger case series.


Mmw-fortschritte Der Medizin | 2017

Mit gezielten Injektionen gegen die Schmerzen

Yama Kamawal; Peter Raab; Maximilian Rudert; Christian Konrads

Rückenschmerzen können manchmal hartnäckig sein und die Betroffenen lange Zeit quälen. Wenn die üblichen konservativen Maßnahmen erfolglos waren, fragen einige Patienten nach einer Injektionstherapie. Nachfolgend ein Überblick über die gängigen Methoden.

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Maik Hoberg

University of Würzburg

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Peter Raab

University of Würzburg

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Franz Jakob

University of Würzburg

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