Werner Anderl

• Dr.
• Head of Department at St. Vincent Hospital

In unserem Fallbeispiel kam es zum Auftreten eines Pyoderma gangraenosum nach der Implantation einer Schulterendoprothese bei einer Patientin mit einem Non-Hodgkin-Lymphom in Remission. Nach initialer Fehldiagnose eines Frühinfekts mit frustraner Behandlung konnte schließlich gemeinsam mit einem mit dem Fall vertrauten Dermatologen die Diagnose ges...

Aims: The purpose of the present study was to evaluate the impact of intravenous tranexamic acid on the reduction of blood loss, transfusion rate, and early post-operative clinical outcome in total shoulder arthroplasty. Patients and methods: A randomised, placebo-controlled trial which included 54 patients undergoing unilateral primary stemless...

The purpose of the present study was to evaluate the impact of intravenous tranexamic acid on the reduction of blood loss, transfusion rate, and early post-operative clinical outcome in total shoulder arthroplasty. Patients and Methods A randomised, placebo-controlled trial which included 54 patients undergoing unilateral primary stemless anatomica...

Rotatorenmanschettenrerupturen stellen trotz fortgeschrittener arthroskopischer Technik und neuen Materialien nach wie vor ein Problem dar. Grund ist insbesondere die Narbengewebeheilung der Sehne am Knochen nach der Refixation. Neben dem technischen Fortschritt stellt die biologische Verbesserung der Sehnenheilung ein großes Ziel für die Zukunft d...

Abstract BACKGROUND: Acromial morphology has previously been defined as a risk factor for some shoulder pathologies. Yet, study results are inconclusive and not all major shoulder diseases have been sufficiently investigated. Thus, the aim of the present study was to analyze predictive value of three radiological parameters including the critica...

Background Especially in young and active patients severe focal, chondral lesions of the shoulder are a therapeutic challenge due to expected functional deficits and future revision surgeries. Objectives The purpose of this article is to illustrate the rationale for using arthroscopic partial humeral head resurfacing, demonstrate the surgical tech...

Background: The number of arthroscopic rotator cuff surgeries is consistently increasing. Although generally considered successful, the reported number of retears after rotator cuff repair is substantial. Short-term clinical outcomes are reported to be rarely impaired by tendon retears, whereas to our knowledge, there is no study documenting long-...

Purpose: The primary aim of the present study was to determine the incidence of infections following arthroscopic rotator cuff repair in a single department over a 10-year period. Secondary goals included the evaluation of potential risk factors for infections and to investigate the efficacy of perioperative antibiotic prophylaxis in the reduction...

Background Adequate three-dimensional component positioning and restoration of overall limb alignment are primary goals in total knee arthroplasty. Patient-specific instrumentation (PSI) is a potential way to improve accuracy of knee reconstruction surgery. However, currently available literature regarding the reliability of PSI shows inconsistent...

Background: Posttraumatic anteroinferior shoulder dislocations with concomitant glenoid bone loss show high recurrence rates. The open J-bone graft technique for implant-less anatomic restoration of bony glenoid structure has previously been described, whereas results of arthroscopic techniques are currently not available. Purpose: To evaluate c...

To evaluate the effectiveness of arthroscopic debridement (DB), partial (PR), and complete repair (CR) for massive rotator cuff tears (mRCT) in terms of functional and subjective parameters, and repair integrity. For this single-centre study, 68 consecutive shoulders with mRCT involving at least three tendons and treated with arthroscopic DB (n = 2...

Hintergrund: Im Falle eines knöchernen Glenoiddefekts ist bei rezidivierender Instabilität des Schultergelenks die bloße Weichteilrekonstruktion (Bankart-Operation) nicht ausreichend. Unterschiedliche offene Techniken zur knöchernen Augmentation zeigen gute Langzeitresultate, arthroskopische Verfahren spiegeln diese in Kurzzeituntersuchungen wider....

Restoring optimal strength and biomechanics of a pathologic shoulder knowledge of activity patterns of healthy glenohumeral muscles is mandatory. Yet, data on normal shoulder muscle activity are not always conclusive. The study was undertaken (a) to evaluate muscle activity patterns in the healthy shoulder using surface and fine-wire electromyograp...

Zusammenfassung: Wir berichten über den Fall einer 25-jährigen Patientin mit rezidivierenden Schulterluxationen. Nach arthroskopischer Kapselraffung und -refixation kam es nach einem beschwerdefreien Intervall zu einem Rezidiv aufgrund eines Glenoiddefekts, der mittels arthroskopischer J-Span-Implantation versorgt wurde. Zwei Jahre nach Reoperation...

Purpose The aim of this prospective study was to compare early clinical outcome, radiological limb alignment, and three-dimensional (3D)-component positioning between conventional and computed tomography (CT)-based patient-specific instrumentation (PSI) in primary mobile-bearing total knee arthroplasty (TKA). Methods Two hundred ninety consecuti...

Osteoarthritis (OA) of the shoulder is a chronic, progressive, and multifactorial disease characterized by degenerative and inflammatory processes affecting the glenohumeral joint. The incidence of primary OA has been reported as approximately 5 % of patients with shoulder complaints. Although OA in the shoulder is less common than OA of the knee o...

Effective pain therapy after shoulder surgery is the main prerequisite for safe management in an ambulatory setting. We evaluated adverse events and hospital re-admission using a database of 509 interscalene catheters inserted during ambulatory shoulder surgery. Adverse events were recorded for 34 (6.7%) patients (9 (1.8%) catheter dislocations dia...

The purpose of this study was to report patients' clinical and subjective outcomes 2 years after arthroscopic-assisted partial resurfacing of the humeral head. In this prospective case series, 11 patients (4 females, 7 males; median age, 59 years; range 47-72) underwent arthroscopic-assisted partial shoulder resurfacing between April 2010 and March...

Proper alignment of the components aimed at accurately reconstructing the mechanical leg axis has gained crucial importance in total knee replacements. Any deviation from the mechanical leg axis by more than 3° varus or valgus will have a negative impact on the outcome (Fang et al. 2009). Computer-assisted surgery (CAS) has markedly improved the ac...

Purpose The purpose of our study was to evaluate the initial fixation strength of bridging techniques compared to other suture techniques for rotator cuff repair using a biomechanical animal model, which incorporated pretesting of intact tendons. Methods Seventy-six fresh bovine shoulders were used for testing seven suture configurations including...

Glenoid bone loss is a recognized risk for recurrent instability. Open J-graft augmentation has been reported as a well-established procedure for anterior shoulder instability. Few data are available on arthroscopic techniques for the repair of bony Bankart lesions. We describe an all-arthroscopic implant-free iliac crest bone grafting technique an...

  In studies concerning the stability of surgical tendon fixation techniques, a large variety of test configurations is found resulting in a broad scatter of results. The goal of this study was to establish a reliable test protocol for the investigation of the stability of repair techniques. At 88 fresh bovine shoulders, four different suture confi...

Tremendous advance has been made with arthroscopic treatment of rotator cuff tears within the last years. Biological and biomechanical factors like the new developed footprint reconstructions (Suturebridge and Speed-bridge) improve significantly the outcome of arthroscopic rotator cuff repairs. The clinical results are similar to open technique wit...

The main purpose of our study was to evaluate intra-articular lesions in glenohumeral-instability with arthroscopy and correlate them with clinical findings as well as history of instability. In this prospective multi-centre study, we evaluated arthroscopic findings in 303 patients with posttraumatic anterior-inferior instability of the shoulder. T...

Tremendous advancement has been made in the surgical treatment of the shoulder within the last years. Arthroscopic techniques for treatment of rotator cuff lesions, instability problems and biceps tendon lesions are today established because of significant improvement of instruments, suture materials and anchor techniques. The 4th generation of sho...

Die Schulterchirurgie hat sich in den letzten Jahren enorm weiterentwickelt. Arthroskopische Techniken zur Behandlung von Rotatorenmanschettenlsion, Instabilitt und Bizepssehnenlsion haben sich durch verbesserte Instrumente, Anker und Nahtmaterialen etabliert. Die 4. Generation anatomischer Schulterprothesen zeigt anatomische und biomechanische Vor...

To investigate the initial fixation strength and to assess the value of tibial press-fit fixation of the bone-tendon-bone graft in anterior cruciate ligament reconstruction. Type of Study: Nonrandomized control trial. For tibial press-fit fixation, the tibial bone block of the bone-tendon-bone graft is countersunk in a bony groove at the distal tun...

Bei der AGA-Schulterluxationsstudie handelt es sich um eine prospektive Multizenterstudie mit großer Fallzahl (371 Schulterstabilisierungen), die derzeit noch nicht abgeschlossen ist. Eines der Hauptziele der Studie ist die Standardisierung des Operationsbefunds bei der instabilen Schulter insbesondere durch eine modifizierte Typisierung nach Haber...

The results of arthroscopic transglenoid suture repair for traumatic unidirectional shoulder instability were evaluated and compared in this retrospective study. We used a transglenoid suture repair in single hole or double hole technique. Between June 1991 and January 1994 44 selected patients who had experienced traumatic injury underwent arthros...

Between the years 1971 and 1975 a surgical treatment of hallux rigidus according to Keller Brandes was performed on 293 patients. From 100 patients with 137 operated feet a clinical and roentgenological examination was evaluated 12 to 16 years after surgery. The subjective assessment showed in 92% of the feet very good or good results. Important fo...