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Walther M, Gottschalk O, Aurich M. Operative management of osteochondral lesions of the talus: 2024 recommendations of the working group 'clinical tissue regeneration' of the German Society of Orthopedics and Traumatology (DGOU). EFORT Open Rev 2024; 9:217-234. [PMID: 38457916 PMCID: PMC10958247 DOI: 10.1530/eor-23-0075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/10/2024] Open
Abstract
The working group 'Clinical Tissue Regeneration' of the German Society of Orthopedics and Traumatology (DGOU) issues this paper with updating its guidelines. Literature was analyzed regarding different topics relevant to osteochondral lesions of the talus (OLT) treatment. This process concluded with a statement for each topic reflecting the best scientific evidence available with a grade of recommendation. All group members rated the statements to identify possible gaps between literature and current clinical practice. Fixation of a vital bony fragment should be considered in large fragments. In children with open physis, retrograde drilling seems to work better than in adults, but even there, the revision rate reaches 50%. The literature supports debridement with bone marrow stimulation (BMS) in lesions smaller than 1.0 cm² without bony defect. The additional use of a scaffold can be recommended in lesions larger than 1.0 cm². For other scaffolds besides AMIC®/Chondro-Gide®, there is only limited evidence. Systematic reviews report good to excellent clinical results in 87% of the patients after osteochondral transplantation (OCT), but donor site morbidity is of concern, reaching 16.9%. There is no evidence of any additional benefit from autologous chondrocyte implantation (ACI). Minced cartilage lacks any supporting data. Metallic resurfacing of OLT can only be recommended as a second-line treatment. A medial malleolar osteotomy has a minor effect on the clinical outcome compared to the many other factors influencing the clinical result.
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Affiliation(s)
- Markus Walther
- Schön Klinik München Harlaching – FIFA Medical Centre of Excellence, Harlachinger Straße, Munich, Germany
- Ludwig Maximilian University Munich, Klinik für Orthopädie und Unfallchirurgie, Muskuloskelettales Zentrum München (MUM), Marchionostraße, Munich, Germany
- Justus Maximilian University Wuerzburg, König-Ludwig-Haus, Brettreichstraße, Würzburg, Germany
- Paracelsus Medizinische Privatuniversität, Strubergasse, Salzburg, Austria
- Working Group Clinical Tissue Regeneration of the German Society of Orthopaedics and Traumatology (DGOU), Berlin, Germany
| | - Oliver Gottschalk
- Schön Klinik München Harlaching – FIFA Medical Centre of Excellence, Harlachinger Straße, Munich, Germany
- Ludwig Maximilian University Munich, Klinik für Orthopädie und Unfallchirurgie, Muskuloskelettales Zentrum München (MUM), Marchionostraße, Munich, Germany
- Working Group Clinical Tissue Regeneration of the German Society of Orthopaedics and Traumatology (DGOU), Berlin, Germany
| | - Matthias Aurich
- Working Group Clinical Tissue Regeneration of the German Society of Orthopaedics and Traumatology (DGOU), Berlin, Germany
- Martin-Luther-University Halle-Wittenberg, Universitätsklinikum Halle (Saale), DOUW - Abteilung für Unfall- und Wiederherstellungschirurgie, Ernst-Grube-Straße, Halle, Germany
- BG-Klinikum Bergmannstrost Halle, Halle, Saale, Germany
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Walther M, Krenn V, Pfahl K. Diagnosing and Managing Infection in Total Ankle Replacement. Foot Ankle Clin 2024; 29:145-156. [PMID: 38309798 DOI: 10.1016/j.fcl.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Infections after total ankle replacement (TAR) within the first 4 weeks after implantation can be managed successfully with 1 or several debridements, irrigation, and a change of polyethylene inlay. Late infections require implant removal. Low-grade infections might be an underestimated problem so far. Although single-surgery revisions are reported in the literature, the authors' experience with 2-stage revisions using an antibiotics-loaded bone cement spacer is better. Additional antibiotics are used to support the surgical treatment. After antibiotic therapy of 12 weeks, the final treatment includes ankle or tibio-talo-calcaneal fusion and, with limitations, revision TAR.
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Affiliation(s)
- Markus Walther
- Department of Foot and Ankle Surgery, Schön Klinik München Harlaching - FIFA Medical Centre, Harlachinger Straße 51, Munich 81547, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, München 81377, Germany; Department of Orthopedic Surgery, University of Wuerzburg, Brettreichstrasse 11, Würzburg 97074, Germany; Paracelsus Medical University, Strubergasse 21, Salzburg 5020, Austria.
| | - Veit Krenn
- Pathologie Trier, Max-Planck-Str. 5, Trier 54296, Germany
| | - Kathrin Pfahl
- Department of Foot and Ankle Surgery, Schön Klinik München Harlaching - FIFA Medical Centre, Harlachinger Straße 51, Munich 81547, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, München 81377, Germany
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Hörterer H, Oppelt S, Harrasser N, Gottschalk O, Böcker W, Polzer H, Walther M, Baumbach SF. Recurrence rates for surgically treated insertional Achilles tendinopathy. Arch Orthop Trauma Surg 2024; 144:1021-1027. [PMID: 38085325 PMCID: PMC10896813 DOI: 10.1007/s00402-023-05155-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/20/2023] [Indexed: 02/28/2024]
Abstract
INTRODUCTION Insertional Achilles tendinopathy (IAT) is a challenge for every orthopedic surgeon. Although surgical intervention is difficult to avoid after frustrating conservative therapy, little is known about recurrence of this disorder. Therefore the aim of the study was to assess the recurrence rate after primary IAT surgery. MATERIALS AND METHODS The authors previous published cohort on primary IAT surgery was reanalyzed. Patients with a follow-up Foot and Function Index (FFI) at one year and final follow-up were included. IAT recurrence was defined as a FFI worsening between one year and final follow-up of > 6.5 points. General demographics, surgical details, complications, and the patient reported outcome (PROM) were assessed. RESULTS Out of 58 included patients (51 ± 14 years), 8 patients (14%) suffered IAT recurrence after an average of 50 ± 25 months. None of the assessed factors was predictive for an IAT recurrence. CONCLUSION IAT recurrence after primary surgery occurs in up to 14% of patients. LEVEL OF EVIDENCE IV, retrospective cohort study.
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Affiliation(s)
- Hubert Hörterer
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Sonja Oppelt
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Norbert Harrasser
- Clinic of Orthopaedics, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - Oliver Gottschalk
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Wolfgang Böcker
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Hans Polzer
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Markus Walther
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
- Department of Orthopedics and Orthopedic Surgery, Julius-Maximilians-University, Würzburg, Germany
| | - Sebastian Felix Baumbach
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany.
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Beischl S, Harrasser N, Toepfer A, Scheele C, Smits Sererna R, Walther M, Lenze F, Hörterer H. Feasibility and safety of minimally invasive calcaneal osteotomy (MICO) through a medial approach: a case-control study. Orthopadie (Heidelb) 2024; 53:39-46. [PMID: 38078936 PMCID: PMC10781868 DOI: 10.1007/s00132-023-04460-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/31/2023] [Indexed: 01/11/2024]
Abstract
INTRODUCTION Minimally invasive calcaneal osteotomy (MICO) is already an established surgical procedure for correcting hindfoot deformities using a lateral approach. So far, no description of a medial approach for MICO has been published. MATERIAL AND METHODS Between August 2022 and March 2023, 32 consecutive patients (MICO with medial approach, MMICO: n = 15; MICO with lateral approach, LMICO: n = 17) underwent MICO as part of complex reconstructive surgery of the foot and ankle with concomitant procedures. The amount of correction in the axial view of the calcaneus and consolidation rates were evaluated radiographically. Subjective satisfaction, stiffness of the subtalar joint, and pain level (numeric rating scale, NRS) at the level of the heel were assessed clinically. The last follow-up was at 6 months. RESULTS All osteotomies consolidated within 6 months after surgery. Displacement of the tuber was 9 mm on average in either group. Relevant subtalar joint stiffness was detected in 5 MMICO and 6 LMICO patients. No relevant differences between the groups were detected for wound healing problems, nerve damage, heel pain or patient satisfaction. CONCLUSION In this study lateral and medial approaches for MICO were performed. Similar degrees of correction and low complication rates were found in both groups. The medial approach for MICO is safe and can be beneficial regarding patient positioning and arrangement of the C‑arm.
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Affiliation(s)
- S Beischl
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - N Harrasser
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
| | - A Toepfer
- Orthopaedics and Traumatology, Kantonsspital St. Gallen, Rorschacher Straße 95, 9007, St. Gallen, Switzerland
| | - C Scheele
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - R Smits Sererna
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - M Walther
- Center for Foot and Ankle Surgery, Schön Clinic Munich Harlaching - FIFA Medical Centre, Harlachinger Straße 51, 81547, Munich, Germany
| | - F Lenze
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - H Hörterer
- Center for Foot and Ankle Surgery, Schön Clinic Munich Harlaching - FIFA Medical Centre, Harlachinger Straße 51, 81547, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377, Munich, Germany
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Matthias A, Becher C, Ettinger S, Gottschalk O, Guenther D, Klos K, Ahrend MD, Körner D, Plaass C, Walther M. Postoperative Management of Osteochondral Lesions of the Ankle: A Survey Among German-Speaking Foot and Ankle Surgeons. Cartilage 2023:19476035231213184. [PMID: 38044500 DOI: 10.1177/19476035231213184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2023] Open
Abstract
OBJECTIVE To assess the current treatment of osteochondral lesions of the ankle (OCLA) by German-speaking foot and ankle surgeons, focusing on the management of postoperative care and rehabilitation. DESIGN A questionnaire was created by a panel of 4 experienced foot and ankle surgeons on behalf of the "Clinical Tissue Regeneration" (CTR) working group of the German Society of Orthopaedics and Trauma Surgery (DGOU), and distributed electronically to members of the CTR, participants of the German Cartilage Registry (Knorpelregister DGOU©), and members of 6 German-speaking orthopedics or sports medicine societies. Results were classified depending on the consensus within the answers (agreement ≥75% "strong tendency," 50%-74% "tendency," 25%-49% "weak tendency," <25% "no tendency"). RESULTS A total of 60 participants returned the questionnaire. The main results are as follows: regarding the frequency of surgical procedures for OCLA, refixation of the fragment, retrograde drilling, and bone marrow stimulation with or without using a matrix were performed by at least 75% of the surgeons and was considered a strong tendency. There was a strong tendency to stabilize the ankle (76.7%) and perform corrective osteotomies (51.7%). In total, 75.5% and 75% of the surgeons performed bone marrow stimulation with and without using a matrix, respectively. Corrective osteotomy and ankle stabilization were performed in 64.5% and 65.2% cases, respectively. Most participants included published recommendations on postoperative rehabilitation and the return to sports activities in their postoperative management. The main surgical procedures were considered the most critical factor in influencing the postoperative management by 81% of the participants (strong tendency). Adjunct surgical procedures such as corrective osteotomy and stabilization of the ankle were considered important by 67.8% of the respondents (tendency). CONCLUSIONS The management of OCLA varies among German-speaking foot and ankle surgeons. Therefore, guidelines remain essential to standardize the management of OCLA, to achieve improved and stable results. This survey will assist clinicians and patients with rehabilitation to return to sports after treating the ankle's cartilage injury.
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Affiliation(s)
- Aurich Matthias
- DOUW, Section of Trauma- and Reconstructive Surgery, University Hospital Halle (Saale), Halle, Germany
- BG Trauma Center Bergmannstrost Halle, Department of Trauma- and Reconstructive Surgery, Halle, Germany
| | - Christoph Becher
- Department of Orthopaedic Surgery, Hannover Medical School, Diakovere Annastift, Hannover, Germany
| | - Sarah Ettinger
- University Hospital for Orthopedic Surgery, Pius Hospital Oldenburg, Oldenburg, Germany
| | - Oliver Gottschalk
- Hospital München Harlaching, Department of Foot and Ankle Surgery, München, Germany
- Department of Orthopaedics and Trauma Surgery, Muskuloskelettal University Center Munich (MUM), Hospital of the University Munich, LMU Munich, Germany
| | - Daniel Guenther
- Department of Orthopaedic Surgery, Trauma Surgery, and Sports Medicine, Cologne Merheim Medical Center, Cologne, Germany
| | - Kajetan Klos
- Joint Center Rhein-Main, Hochheim am Main, Germany
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Jena, Jena, Germany
| | - Marc-Daniel Ahrend
- BG Trauma Center Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Daniel Körner
- BG Trauma Center Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | | | - Markus Walther
- Schön Hospital München Harlaching-FIFA Medical Centre of Excellence, Munich, Germany
- Ludwig Maximilian University Munich, Department of Orthopaedics and Trauma Surgery, Muskuloskelletal University Center Munich (MUM), Munich, Germany
- Justus Maximilian University Wuerzburg, König-Ludwig-Haus, Würzburg, Germany
- Paracelsus Medical Private Universität, Salzburg, Austria
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Walther M, Gottschalk O, Madry H, Müller PE, Steinwachs M, Niemeyer P, Niethammer TR, Tischer T, Petersen J, Feil R, Fickert S, Schewe B, Hörterer H, Ruhnau K, Becher C, Klos K, Plaass C, Rolauffs B, Behrens P, Spahn G, Welsch G, Angele P, Ahrend MD, Kasten P, Erggelet C, Ettinger S, Günther D, Körner D, Aurich M. Etiology, Classification, Diagnostics, and Conservative Management of Osteochondral Lesions of the Talus. 2023 Recommendations of the Working Group "Clinical Tissue Regeneration" of the German Society of Orthopedics and Traumatology. Cartilage 2023; 14:292-304. [PMID: 37082983 PMCID: PMC10601568 DOI: 10.1177/19476035231161806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 02/18/2023] [Accepted: 02/19/2023] [Indexed: 04/22/2023] Open
Abstract
METHODS Peer-reviewed literature was analyzed regarding different topics relevant to osteochondral lesions of the talus (OLTs) treatment. This process concluded with a statement for each topic reflecting the best scientific evidence available for a particular diagnostic or therapeutic concept, including the grade of recommendation. Besides the scientific evidence, all group members rated the statements to identify possible gaps between literature and current clinical practice. CONCLUSION In patients with minimal symptoms, OLT progression to ankle osteoarthritis is unlikely. Risk factors for progression are the depth of the lesion on MRI, subchondral cyst formation, and the extent of bone marrow edema. Conservative management is the adaptation of activities to the performance of the ankle joint. A follow-up imaging after 12 months helps not to miss any progression. It is impossible to estimate the probability of success of conservative management from initial symptoms and imaging. Cast immobilization is an option in OLTs in children, with a success rate of approximately 50%, although complete healing, estimated from imaging, is rare. In adults, improvement by conservative management ranges between 45% and 59%. Rest and restrictions for sports activities seem to be more successful than immobilization. Intra-articular injections of hyaluronic acid and platelet-rich plasma can improve pain and functional scores for more than 6 months. If 3 months of conservative management does not improve symptoms, surgery can be recommended.
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Affiliation(s)
- Markus Walther
- Schön Klinik München Harlaching, FIFA Medical Centre of Excellence, Munich, Germany
- Department of Orthopeadics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, Ludwig Maximilian University Munich, Munich, Germany
- König-Ludwig-Haus, Julius Maximilian University of Würzburg, Würzburg, Germany
- Paracelsus Medizinische Privatuniversität, Salzburg, Austria
| | - Oliver Gottschalk
- Schön Klinik München Harlaching, FIFA Medical Centre of Excellence, Munich, Germany
- Department of Orthopeadics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Henning Madry
- Institute of Experimental Orthopaedics and Department of Orthopaedic Surgery, Saarland University, Homburg, Germany
| | - Peter E. Müller
- Department of Orthopeadics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Matthias Steinwachs
- SportClinic Zürich, Klinik Hirslanden, Zürich, Switzerland
- ETH Zürich, Zürich, Switzerland
- Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Philipp Niemeyer
- Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
- OCM—Hospital for Orthopedic Surgery Munich, Munich, Germany
| | - Thomas R. Niethammer
- Department of Orthopeadics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Thomas Tischer
- Klinik für Orthopädie und Unfallchirurgie, Malteser Waldkrankenhaus St. Marien, Erlangen, Germany
| | | | - Roman Feil
- Klinik für Unfallchirurgie und Orthopädie, Kath. Marienkrankenhaus gGmbH, Hamburg, Germany
| | - Stefan Fickert
- Sporthopaedicum Straubing, Straubing, Germany
- Sporthopaedicum Regensburg, Regensburg, Germany
| | - Bernhard Schewe
- Orthopädisch Chirurgisches Centrum Tübingen, Tübingen, Germany
| | - Hubert Hörterer
- Schön Klinik München Harlaching, FIFA Medical Centre of Excellence, Munich, Germany
- Department of Orthopeadics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | | | - Christoph Becher
- Internationales Zentrum für Orthopädie, ATOS Klinik Heidelberg, Heidelberg, Germany
| | | | - Christian Plaass
- Orthopedic Clinic of Medical School Hannover, DIAKOVERE Annastift, Hannover, Germany
| | - Bernd Rolauffs
- Klinik für Orthopädie und Unfallchirurgie and G.E.R.N. Forschungszentrum, Universitätsklinikum Freiburg, Freiburg, Germany
| | | | - Gunter Spahn
- Center of Trauma and Orthopaedic Surgery Eisenach, Eisenach, Germany
| | | | - Peter Angele
- Sporthopaedicum Straubing, Straubing, Germany
- Sporthopaedicum Regensburg, Regensburg, Germany
- Department of Trauma and Reconstructive Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Marc-Daniel Ahrend
- BG Unfallklinik Tübingen, Klinik für Unfall- und Wiederherstellungschirurgie, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Philip Kasten
- Orthopädisch Chirurgisches Centrum Tübingen, Tübingen, Germany
| | - Christoph Erggelet
- Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
- alphaclinic zürich, Zürich, Switzerland
| | - Sarah Ettinger
- Orthopedic Clinic of Medical School Hannover, DIAKOVERE Annastift, Hannover, Germany
| | - Daniel Günther
- Department of Orthopaedic Surgery, Trauma Surgery, and Sports Medicine, Cologne-Merheim Medical Center, Witten/Herdecke University, Cologne, Germany
| | - Daniel Körner
- BG Unfallklinik Tübingen, Klinik für Unfall- und Wiederherstellungschirurgie, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Matthias Aurich
- BG Klinikum Bergmannstrost Halle, Halle (Saale), Germany
- Abteilung für Unfall- und Wiederherstellungschirurgie, Martin-Luther-University Halle-Wittenberg, Universitätsklinikum Halle (Saale), Halle, Germany
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Kostuj T, Preis M, Walther M, Aghayev E. [The German Association for Foot and Ankle (D.A.F.) registry on treatment of end-stage total ankle arthritis-what is its clinical impact?]. Orthopadie (Heidelb) 2023:10.1007/s00132-023-04384-4. [PMID: 37221297 DOI: 10.1007/s00132-023-04384-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 05/25/2023]
Abstract
Initially established as a voluntary prosthesis register for total ankle replacement, the registry now enables analysis of revisions, complications, and clinical and functional outcomes-including patient-reported outcome measures-based on a period spanning more than 10 years. To allow analyses of the outcomes of ankle arthrodesis and supramalleolar osteotomies for treatment of end-stage arthritis in the future, the registry was extended by structured capturing of these procedures in 2018. While descriptive and analytical statistical evaluations of total ankle replacement are already possible today, the number of datasets on arthrodesis and supramalleolar osteotomies is still too small to support these analyses or comparative evaluations.
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Affiliation(s)
- Tanja Kostuj
- Orthopädisch Traumatologisches Zentrum, St. Marien-Hospital Hamm, Hamm, Deutschland.
| | - Markus Preis
- Zentrum für Fußchirurgie, Aukammklinik, Wiesbaden, Deutschland
| | - Markus Walther
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, München, Deutschland
| | - Emin Aghayev
- Eurospine, die europäische Wirbelsäulengesellschaft, Zürich, Schweiz
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Rischke HC, Hase C, Schneider T, Walther M. [Radiological-nuclear medicine hybrid diagnostics with SPECT/CT for chronic foot and ankle diseases : A new and important diagnostic tool]. Orthopadie (Heidelb) 2023:10.1007/s00132-023-04377-3. [PMID: 37106098 DOI: 10.1007/s00132-023-04377-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/02/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND AND AIM In contrast to standard methods (sonography, X‑ray, CT (computed tomography), MRI (magnetic resonance imaging), numerous diseases of the foot or ankle can be diagnosed using SPECT/CT (single photon emission computed tomography/computed tomography) with regard to their clinical relevance with high accuracy (up to > 90%). The aim of this review is to provide an up-to-date overview of the importance of SPECT/CT in selected diseases of the foot and ankle. MATERIAL AND METHODS A literature search was carried out in the Pubmed database using the following terms: SPECT/CT, SPECT, skeletal scintigraphy, CT, computed tomography, foot and ankle disease, OSG, tarsal root, foot pain. The publications were selected with regard to questions and diagnoses that frequently occur in foot and ankle diagnostics. Furthermore, papers that describe a more precise diagnosis, a change in therapy management or a reduction in symptoms due to the use of SPECT/CT were selected. RESULTS Several studies have shown that a focally increased bone metabolism in osteoarthritis and osteochondral lesions correlates significantly with the development of pain. The presence of symptomatic ossicles such as the os naviculare accessorium type II and os trigonum can be clearly demonstrated with the help of SPECT/CT and cannot be assigned as the source of the symptoms as accurately with any other imaging method. Bony reactions in the area of coalitions, arthrodesis, osteosynthesis, occult fractures, prostheses and diabetic foot cannot be detected with comparable accuracy using any other imaging method, so that therapy concepts in unclear cases, based only on standard imaging are changed in up to 2/3 of cases by SPECT/CT information. DISCUSSION AND CONCLUSION SPECT/CT is useful when there are clinical uncertainties despite standard imaging.
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Affiliation(s)
| | - Charlotte Hase
- Fuß- und Sprunggelenkchirurgie, Loretto-Krankenhaus Freiburg, Freiburg, Deutschland
| | - Thomas Schneider
- Sportmedizin, Fuß- und Sprunggelenkchirurgie, Gelenkklinik Gundelfingen, Gundelfingen, Deutschland
| | - Markus Walther
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München-Harlaching, München, Deutschland
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Pfahl K, Röser A, Eder J, Gottschalk O, Hörterer H, Mehlhorn A, Walther M. Outcomes of Salvage Procedures for Failed Total Ankle Arthroplasty. Foot Ankle Int 2023; 44:262-269. [PMID: 36879477 DOI: 10.1177/10711007231156426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
BACKGROUND The number of total ankle arthroplasty (TAA) procedures increased rapidly in the last years and so have its complications. The main pillars in treating failed TAA are revision total ankle arthroplasty (RTAA), revision total ankle arthrodesis (RAA), or revision tibiotalocalcaneal fusion (RTTC). To evaluate these options, we compared clinical, radiologic, and patient-reported outcomes. METHODS A single-center, retrospective review of 111 cases of revision procedures of failed TAA from 2006 to 2020 was performed. Patients undergoing polyethylene exchange and revision of one metallic component were excluded. Demographic data, failure, and survival rates were analyzed. The European Foot and Ankle Society (EFAS) score and radiographic changes in the subtalar joint were evaluated. The average follow-up was 67.89 ± 40.51 months. RESULTS One hundred eleven patients underwent removal of TAA. The procedures included 40 revisions of both metallic components, 46 revision total ankle arthrodesis and 25 revision tibiotalocalcaneal fusion. The overall failure rate in the cohort was 5.41% (6/111). The failure rate after RAA was 4.35 times higher than that of RTAA, whereas RTTC did not show failures. RTAA and RTTC lead to a 1-year and 5-year survival rate of 100%. RAA resulted in a 1-year survival rate of 90% and a 5-year survival rate of 85%. The mean EFAS score in the cohort was 12.02 ± 5.83. Analysis of the EFAS score showed that RTTC provided the most reliable pain reduction, and RTAA achieved the best gait pattern. RAA resulted in poorer clinical results. Subtalar joint degeneration occurred significantly less in the RTAA group (P = .01). CONCLUSION This retrospective study suggests lower failure rates, increased short-term survival and a better clinical outcomes of revision arthroplasty and tibiotalocalcaneal fusion than ankle arthrodesis. Revision arthroplasty is a promising solution in treating failed total ankle arthroplasty considering lower rate of subsequent adjacent joint degeneration. LEVEL OF EVIDENCE Level III, non-randomized observational study.
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Affiliation(s)
- Kathrin Pfahl
- Schön Klinik München Harlaching - FIFA Medical Centre, Munich, Germany
| | - Anke Röser
- Schön Klinik München Harlaching - FIFA Medical Centre, Munich, Germany
| | - Julia Eder
- Department of Psychiatry and Psychotherapy, Ludwig Maximilian University of Munich, Munich, Germany
| | - Oliver Gottschalk
- Schön Klinik München Harlaching - FIFA Medical Centre, Munich, Germany.,Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich
| | - Hubert Hörterer
- Schön Klinik München Harlaching - FIFA Medical Centre, Munich, Germany.,Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich
| | | | - Markus Walther
- Schön Klinik München Harlaching - FIFA Medical Centre, Munich, Germany
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10
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Mehlhorn AT, Illgner U, Lemperle S, Hoerterer H, Krenn V, Walther M. Histopathological assessment of a two-stage reconstructive procedure of the infected Charcot foot. Arch Orthop Trauma Surg 2023; 143:1223-1230. [PMID: 34743216 DOI: 10.1007/s00402-021-04238-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/26/2021] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Charcot neuropathic osteoarthropathy (CN) can be complicated by osteomyelitis (OM). Surgery is a standard procedure to treat OM including debridement and interposition of antibiotic-loaded cement (ABLC) spacer. The course of CN and OM was investigated on a histopathological level. MATERIALS AND METHODS Diabetic patients (n = 15) suffering from CN and midfoot OM underwent surgical debridement and interposition of ABLC was interposed. 6 weeks later, ABLC was removed and bone samples were taken again. Histopathological Charcot Score (HCS), Histopathological Osteomyelitis Evaluation Score (HOES) and microbiological assessment were used to evaluate osteomyelitic and neuroosteoarthropathic activity at both time points. RESULTS Interposition of ABLC leads to microbiological/histopathological eradication of OM in 73%/87% of patients. CN activity-measured by HCS-could be reduced from moderate to low activity by ABLC spacer and correlated with HOES. CONCLUSIONS CN activity could be reduced by surgery. It can be suggested that neuroosteoarthropathic activity measured by HCS is triggered by OM.
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Affiliation(s)
- Alexander T Mehlhorn
- Center of Foot and Ankle Surgery, Schönklinik München Harlaching, Harlachingerstrasse 55, 81549, Munich, Germany.
- Department of Orthopedics and Trauma Surgery, Medical Center, Albert-Ludwigs University of Freiburg, Freiburg, Germany.
| | - Ulrich Illgner
- Orthopädische Privatpraxis Seintsch Illgner, Koblenz, Germany
| | - Stefan Lemperle
- Center of Foot and Ankle Surgery, Schönklinik München Harlaching, Harlachingerstrasse 55, 81549, Munich, Germany
| | - Hubert Hoerterer
- Center of Foot and Ankle Surgery, Schönklinik München Harlaching, Harlachingerstrasse 55, 81549, Munich, Germany
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Veith Krenn
- MVZ-Zentrum Für Histologie, Zytologie Und Molekulare Diagnostik GmbH, Max-Planck-Str. 5, Trier, Germany
| | - Markus Walther
- Center of Foot and Ankle Surgery, Schönklinik München Harlaching, Harlachingerstrasse 55, 81549, Munich, Germany
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11
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Niemeyer P, Albrecht D, Aurich M, Becher C, Behrens P, Bichmann P, Bode G, Brucker P, Erggelet C, Ezechieli M, Faber S, Fickert S, Fritz J, Hoburg A, Kreuz P, Lützner J, Madry H, Marlovits S, Mehl J, Müller PE, Nehrer S, Niethammer T, Pietschmann M, Plaass C, Rössler P, Rhunau K, Schewe B, Spahn G, Steinwachs M, Tischer T, Volz M, Walther M, Zinser W, Zellner J, Angele P. [Correction: Empfehlungen der AG Klinische Geweberegeneration zur Behandlung von Knorpelschäden am Kniegelenk]. Z Orthop Unfall 2023; 161:e2. [PMID: 35345054 DOI: 10.1055/a-1798-7819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Philipp Niemeyer
- OCM Orthopädische Chirurgie München, München, Deutschland.,Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | - Dirk Albrecht
- Chirurgie, Klinik im Kronprinzenbau, Reutlingen, Deutschland
| | - Matthias Aurich
- Department für Orthopädie, Unfall- und Wiederherstellungschirurgie, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland.,Klinik für Unfall- und Wiederherstellungschirurgie, BG Klinikum Bergmannstrost Halle, Halle (Saale, Deutschland
| | - Christoph Becher
- HKF - Internationales Zentrum für Hüft-, Knie- und Fußchirurgie, ATOS Klinik Heidelberg, Heidelberg, Deutschland
| | | | - Peter Bichmann
- Klinik für Unfallchirurgie und Orthopädie, Nordwest Krankenhaus Sanderbusch GmbH, Sande, Deutschland
| | - Gerrit Bode
- Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | | | | | - Marco Ezechieli
- Klinik für Orthopädie, Unfallchirurgie und Sporttraumatologie, St. Josefs Krankenhaus Salzkotten, Salzkotten, Deutschland
| | - Svea Faber
- Orthopädische Chirurgie, OCM Klinik München, München, Deutschland
| | - Stefan Fickert
- University Medical Center Mannheim Medical Faculty Mannheim, Heidelberg University, Sportorthopaedicum Regensburg/Straubing, Straubing, Deutschland
| | - Jürgen Fritz
- Orthopädie und Unfallchirurgie, Orthopädisch Chirurgisches Centrum, Tübingen, Deutschland
| | - Arnd Hoburg
- Gelenk- und Wirbelsäulenzentrum, Gelenk- und Wirbelsäulenzentrum Steglitz-Berlin, Berlin, Deutschland
| | - Peter Kreuz
- Zentrum für Orthopädie und Unfallchirurgie, Asklepios Stadtklinik Bad Tolz, Bad Tölz, Deutschland
| | - Jörg Lützner
- Klinik und Poliklinik für Orthopädie, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Deutschland
| | - Henning Madry
- Zentrum für Experimentelle Orthopädie, Universitätsklinikum des Saarlandes, Homburg, Deutschland
| | - Stefan Marlovits
- Klinik für Unfallchirurgie, Medizinische Universität Wien, Wien, Österreich
| | - Julian Mehl
- Abteilung und Poliklinik für Sportorthopädie, Klinikum rechts der Isar, TUM, München, Deutschland
| | - Peter E Müller
- Orthopädische Klinik, Ludwig-Maximiliams-Universität München, München, Deutschland
| | - Stefan Nehrer
- Fakultät für Gesundheit und Medizin, Donau-Universität Krems, Krems, Österreich
| | - Thomas Niethammer
- Klinik und Poliklinik für Orthopädie, Physikalische Medizin und Rehabilitation, Ludwig-Maximilians-Universität, München, Deutschland
| | - Matthias Pietschmann
- Orthopädische Klinik, Ludwig-Maximiliams-Universität München, München, Deutschland
| | - Christian Plaass
- Diakovere Annastift, Klinik für Orthopädie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Philip Rössler
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - Klaus Rhunau
- Orthopedics, Viktoria Klinik Bochum, Bochum, Deutschland
| | - Bernhard Schewe
- Orthopädisch Chirurgisches Centrum, Orthopädisch Chirurgisches Centrum Tübingen, Tübingen, Deutschland
| | - Gunter Spahn
- Unfallchirurgie und Orthopädie, Praxisklinik für Unfallchirurgie und Orthopädie, Eisenach, Deutschland.,Klinik für Unfall,- Hand- und Wiederherstellungschirurgie, Universitätsklinikum Jena, Jena, Deutschland
| | - Matthias Steinwachs
- Zentrum für Orthobiologie und Knorpelregeneration, Schulthess Klinik, Zürich, Schweiz
| | - Thomas Tischer
- Orthopaedic Surgery, University Medicine Rostock, Rostock, Deutschland
| | - Martin Volz
- Orthopädie & Unfallchirurgie, Sportklinik Ravensburg, Ravensburg, Deutschland
| | - Markus Walther
- Foot and Ankle Surgery, Schön Klinik München Harlaching, München, Deutschland
| | - Wolfgang Zinser
- Klinik für Orthopädie und Unfallchirurgie, St. Vinzenz-Hospital Dinslaken, Dinslaken, Deutschland
| | | | - Peter Angele
- sporthopaedicum Regensburg, Regensburg, Deutschland.,Universitätsklinikum Regensburg, Regensburg, Deutschland
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12
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Gottschalk O, Körner D, Aurich M, Plaass C, Günther D, Hörterer H, Bruder J, Walther M. Descriptive analysis and short-term follow-up clinical results of osteochondral lesions of the distal tibia based on data of the German Cartilage Register (Knorpelregister ® DGOU). Arch Orthop Trauma Surg 2023; 143:809-815. [PMID: 34585304 DOI: 10.1007/s00402-021-04167-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION An increasing number of ankle injuries with osteochondral lesions (OCL) also include lesions of the distal tibia. Therefore, the German Cartilage Society database is used to describe and examine the characteristics of these lesions and, early on, the results of different surgical therapies on the clinical outcome. MATERIALS AND METHODS Forty-seven patients out of 844 registered in the German Cartilage Society database met the inclusion criteria showing an OCL of the distal tibia (OLDT). Sixteen of them also presented a 1-year follow-up regarding the Foot and Ankle Ability Measure (FAAM). Further evaluations were included in the follow-up, such as the Foot and Ankle Outcome Score (FAOS) and the Visual Analogue Scale for pain (VAS). RESULTS The patients' mean age was 35 ± 11 with a mean BMI in the range of overweight (26/27 ± 5 kg/m2). The lesions were equally distributed on the articular surface of the distal tibia. Most patients were operated using anterior ankle arthroscopy [nT 34 (72%); nS 13 (81%)], while some (nT 9; nS 4) converted to open procedures. Almost 90% staged III and IV in the ICRS classification. Debridement, bone marrow stimulation, solid scaffolds, and liquid filler were the treatment choices among the subgroup. All therapies led to a clinical improvement between pre-op and 1-year follow-up but not to a significant level. CONCLUSION This study presents baseline data of OLDT based on data from a large database. BMS and scaffolds were the treatment of choice but did not present significant improvement after a 1-year follow-up.
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Affiliation(s)
- Oliver Gottschalk
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, Munich, Germany. .,Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany.
| | - Daniel Körner
- Department of Traumatology and Reconstructive Surgery, BG Trauma Centre Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Matthias Aurich
- Department of Orthopaedics, Trauma- and Reconstructive Surgery, University Hospital Halle (Saale), Halle (Saale), Germany.,Department of Trauma- and Reconstructive Surgery, BG Trauma Center Bergmannstrost, Halle (Saale), Germany
| | - Christian Plaass
- Department for Foot and Ankle Surgery, Diakovere Annastift, Orthopedic Clinic of the Hannover Medical School, Hannover, Germany
| | - Daniel Günther
- Department of Orthopedic Surgery, Trauma Surgery, and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdicke University, Witten, Germany
| | - Hubert Hörterer
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, Munich, Germany.,Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Jan Bruder
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Markus Walther
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, Munich, Germany
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13
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Niemeyer P, Albrecht D, Aurich M, Becher C, Behrens P, Bichmann P, Bode G, Brucker P, Erggelet C, Ezechieli M, Faber S, Fickert S, Fritz J, Hoburg A, Kreuz P, Lützner J, Madry H, Marlovits S, Mehl J, Müller PE, Nehrer S, Niethammer T, Pietschmann M, Plaass C, Rössler P, Rhunau K, Schewe B, Spahn G, Steinwachs M, Tischer T, Volz M, Walther M, Zinser W, Zellner J, Angele P. Empfehlungen der AG Klinische Geweberegeneration zur Behandlung von Knorpelschäden am Kniegelenk. Z Orthop Unfall 2023; 161:57-64. [PMID: 35189656 DOI: 10.1055/a-1663-6807] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The Working Group of the German Orthopedic and Trauma Society (DGOU) on Tissue Regeneration has published recommendations on the indication of different surgical approaches for treatment of full-thickness cartilage defects in the knee joint in 2004, 2013 and 2016. Based upon new scientific knowledge and new developments, this recommendation is an update based upon the best clinical evidence available. In addition to prospective randomised controlled clinical trials, this also includes studies with a lower level of evidence. In the absence of evidence, the decision is based on a consensus process within the members of the working group.The principle of making decision dependent on defect size has not been changed in the new recommendation either. The indication for arthroscopic microfracturing has been reduced up to a defect size of 2 cm2 maximum, while autologous chondrocyte implantation is the method of choice for larger cartilage defects. Additionally, matrix-augmented bone marrow stimulation (mBMS) has been included in the recommendation for defects ranging from 1 to 4.5 cm2. For the treatment of smaller osteochondral defects, in addition to osteochondral transplantation (OCT), mBMS is also recommended. For larger defects, matrix-augmented autologous chondrocyte implantation (mACI/mACT) in combination with augmentation of the subchondral bone is recommended.
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Affiliation(s)
- Philipp Niemeyer
- OCM Orthopädische Chirurgie München, München, Deutschland.,Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | - Dirk Albrecht
- Chirurgie, Klinik im Kronprinzenbau, Reutlingen, Deutschland
| | - Matthias Aurich
- Department für Orthopädie, Unfall- und Wiederherstellungschirurgie, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland.,Klinik für Unfall- und Wiederherstellungschirurgie, BG Klinikum Bergmannstrost Halle, Halle (Saale, Deutschland
| | - Christoph Becher
- HKF - Internationales Zentrum für Hüft-, Knie- und Fußchirurgie, ATOS Klinik Heidelberg, Heidelberg, Deutschland
| | | | - Peter Bichmann
- Klinik für Unfallchirurgie und Orthopädie, Nordwest Krankenhaus Sanderbusch GmbH, Sande, Deutschland
| | - Gerrit Bode
- Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | | | | | - Marco Ezechieli
- Klinik für Orthopädie, Unfallchirurgie und Sporttraumatologie, St. Josefs Krankenhaus Salzkotten, Salzkotten, Deutschland
| | - Svea Faber
- Orthopädische Chirurgie, OCM Klinik München, München, Deutschland
| | - Stefan Fickert
- University Medical Center Mannheim Medical Faculty Mannheim, Heidelberg University, Sportorthopaedicum Regensburg/Straubing, Straubing, Deutschland
| | - Jürgen Fritz
- Orthopädie und Unfallchirurgie, Orthopädisch Chirurgisches Centrum, Tübingen, Deutschland
| | - Arnd Hoburg
- Gelenk- und Wirbelsäulenzentrum, Gelenk- und Wirbelsäulenzentrum Steglitz-Berlin, Berlin, Deutschland
| | - Peter Kreuz
- Zentrum für Orthopädie und Unfallchirurgie, Asklepios Stadtklinik Bad Tolz, Bad Tölz, Deutschland
| | - Jörg Lützner
- Klinik und Poliklinik für Orthopädie, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Deutschland
| | - Henning Madry
- Zentrum für Experimentelle Orthopädie, Universitätsklinikum des Saarlandes, Homburg, Deutschland
| | - Stefan Marlovits
- Klinik für Unfallchirurgie, Medizinische Universität Wien, Wien, Österreich
| | - Julian Mehl
- Abteilung und Poliklinik für Sportorthopädie, Klinikum rechts der Isar, TUM, München, Deutschland
| | - Peter E Müller
- Orthopädische Klinik, Ludwig-Maximiliams-Universität München, München, Deutschland
| | - Stefan Nehrer
- Fakultät für Gesundheit und Medizin, Donau-Universität Krems, Krems, Österreich
| | - Thomas Niethammer
- Klinik und Poliklinik für Orthopädie, Physikalische Medizin und Rehabilitation, Ludwig-Maximilians-Universität, München, Deutschland
| | - Matthias Pietschmann
- Orthopädische Klinik, Ludwig-Maximiliams-Universität München, München, Deutschland
| | - Christian Plaass
- Diakovere Annastift, Klinik für Orthopädie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Philip Rössler
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - Klaus Rhunau
- Orthopedics, Viktoria Klinik Bochum, Bochum, Deutschland
| | - Bernhard Schewe
- Orthopädisch Chirurgisches Centrum, Orthopädisch Chirurgisches Centrum Tübingen, Tübingen, Deutschland
| | - Gunter Spahn
- Unfallchirurgie und Orthopädie, Praxisklinik für Unfallchirurgie und Orthopädie, Eisenach, Deutschland.,Klinik für Unfall,- Hand- und Wiederherstellungschirurgie, Universitätsklinikum Jena, Jena, Deutschland
| | - Matthias Steinwachs
- Zentrum für Orthobiologie und Knorpelregeneration, Schulthess Klinik, Zürich, Schweiz
| | - Thomas Tischer
- Orthopaedic Surgery, University Medicine Rostock, Rostock, Deutschland
| | - Martin Volz
- Orthopädie & Unfallchirurgie, Sportklinik Ravensburg, Ravensburg, Deutschland
| | - Markus Walther
- Foot and Ankle Surgery, Schön Klinik München Harlaching, München, Deutschland
| | - Wolfgang Zinser
- Klinik für Orthopädie und Unfallchirurgie, St. Vinzenz-Hospital Dinslaken, Dinslaken, Deutschland
| | | | - Peter Angele
- sporthopaedicum Regensburg, Regensburg, Deutschland.,Universitätsklinikum Regensburg, Regensburg, Deutschland
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Harrasser N, Hinterwimmer F, Baumbach SF, Pfahl K, Glowalla C, Walther M, Hörterer H. The distal metatarsal screw is not always necessary in third-generation MICA: a case-control study. Arch Orthop Trauma Surg 2022:10.1007/s00402-022-04740-7. [PMID: 36577799 PMCID: PMC10374712 DOI: 10.1007/s00402-022-04740-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/15/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION To evaluate the clinical and radiological results after fixation of the first metatarsal head (MTH) with one or two screws as part of the third-generation minimally invasive Chevron-Akin osteotomy (MICA) for hallux valgus deformities. MATERIALS AND METHODS Between August 2020 and November 2021, 55 MICA procedures (50 patients, male:female = 7:43), 22 with two (MICA2), 33 with one screw (MICA1) were performed for mild to severe hallux valgus deformities. Exclusion criteria were a concomitant pes adductus (Sgarlato angle > 20°) or hindfoot/midfoot deformities requiring treatment. In 27 cases, additional procedures on the forefoot (small toe corrections or metatarsal osteotomies II-V) were necessary. Pre- and post-operatively, hallux valgus angle (HVA) and intermetatarsal I/II angle (IMA) were measured. Clinically, subjective satisfaction, range of motion (ROM) of the first metatarsophalangeal joint (MTPJ), and pain level (NRS score) were evaluated. The minimum follow-up was 12 months. RESULTS Displacement of MTH was 70-90% on average, all osteotomies showed full consolidation at latest follow-up. In one case of either group, a slight subsidence of MTH was documented. The radiological and clinical parameters showed no differences between the groups. The pain level improved by an average of three points. The mobility of the MTPJ showed a slight reduction in nine cases after three months (4 MICA2, 5 MICA1) which persisted in three cases. Fifty-two of 55 patients (95%) would opt again for the operation. CONCLUSIONS Fixation of the first MTH with a single bicortical screw in MICA with moderate lateralization of MTH shows stable anchoring and good clinical results. The routine use of a second metatarsal screw can be omitted.
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Affiliation(s)
- Norbert Harrasser
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
| | - F Hinterwimmer
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - S F Baumbach
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377, Munich, Germany
| | - K Pfahl
- FIFA Medical Centre, Center for Foot and Ankle Surgery, Schön Clinic Munich Harlaching, Harlachinger Straße 51, 81547, Munich, Germany
| | - C Glowalla
- Clinic of Orthopaedics, Klinikum rechts der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - M Walther
- FIFA Medical Centre, Center for Foot and Ankle Surgery, Schön Clinic Munich Harlaching, Harlachinger Straße 51, 81547, Munich, Germany
| | - H Hörterer
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377, Munich, Germany
- FIFA Medical Centre, Center for Foot and Ankle Surgery, Schön Clinic Munich Harlaching, Harlachinger Straße 51, 81547, Munich, Germany
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15
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Markmann V, Walther M, Dartsch M, Valerio J, Frenzel L, Lokteva I, Westermeier F, Grübel G, Lehmkühler F. A versatile chamber for x-ray scattering on liquid jets with sample recycling. Rev Sci Instrum 2022; 93:125106. [PMID: 36586895 DOI: 10.1063/5.0105529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 11/11/2022] [Indexed: 06/17/2023]
Abstract
We introduce the setup of a versatile sample chamber for x-ray scattering experiments on liquids delivered by μ-jets. The simple implementation at x-ray light sources, adaptability to different nozzle types, and the availability of a microscope for observation of the jet flow allow for its broad application. In combination with an inbuilt recycling circle, a continuous flow operation is provided. Functionality of the system was demonstrated in a rheology study at PETRA III.
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Affiliation(s)
- V Markmann
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - M Walther
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - M Dartsch
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - J Valerio
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - L Frenzel
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - I Lokteva
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - F Westermeier
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - G Grübel
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - F Lehmkühler
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
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Pfahl K, Röser A, Eder J, Gottschalk O, Hörterer H, Mehlhorn A, Walther M. Failure rates and patient-reported outcomes of revision of total ankle arthroplasty. Arch Orthop Trauma Surg 2022:10.1007/s00402-022-04657-1. [PMID: 36271162 DOI: 10.1007/s00402-022-04657-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/09/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Despite the increasing number of revision total ankle arthroplasty (TAA), the literature on indications, surgical options, and outcomes is limited. This study reports on failure rates and patient-reported outcomes (PROM) for a cohort of 122 patients who underwent revision of TAA. MATERIALS AND METHODS A retrospective review of revision TAA between 2006 and 2020 was performed at one institution. Patient's demographics and different surgical procedures were analyzed with particular attention to comparing polyethylene exchange with revision of both metallic components and to additional interventions for axis correction. Failure rates and the European Foot and Ankle Society (EFAS) score were collected. The average follow-up period was 70.37 ± 46.76 months. RESULTS 122 patients were treated with an exchange procedure. The surgery included 69 polyethylene exchanges, 12 revisions of one metallic component, and 41 revisions of both metallic components. The overall failure rate was 14.75%. The EFAS score, completed by 94 of the 122 patients, was used to evaluate clinical outcomes. Median EFAS score was 12.51 ± 5.53, and median EFAS sports score was 2.97 ± 3.04. Revision rates after polyethylene exchange were significantly higher than after exchanging both metallic components (p value = 0.03), while the EFAS score showed slightly better results in patients treated with polyethylene exchange. Adding procedures to induce axis correction led to significantly lower revision rates (p value = 0.03), and the EFAS score was also improved but without statistical significance. CONCLUSIONS The high failure rate of polyethylene exchange indicates that the intervention does not address the actual cause of failed TAA in many cases. Additional axis correction should be considered more frequently. If the underlying issues of prosthesis failure can be identified and sufficiently addressed, the results of revision surgery are likely to improve.
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Affiliation(s)
- Kathrin Pfahl
- Schön Klinik München Harlaching - FIFA Medical Centre, Center for Foot and Ankle Surgery, Harlachinger Straße 51, 81547, Munich, Germany.
| | - Anke Röser
- Schön Klinik München Harlaching - FIFA Medical Centre, Center for Foot and Ankle Surgery, Harlachinger Straße 51, 81547, Munich, Germany
| | - Julia Eder
- Department of Psychiatry and Psychotherapy, Ludwig Maximilian University of Munich, Nußbaumstraße 7, 80336, Munich, Germany
| | - Oliver Gottschalk
- Schön Klinik München Harlaching - FIFA Medical Centre, Center for Foot and Ankle Surgery, Harlachinger Straße 51, 81547, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377, Munich, Germany
| | - Hubert Hörterer
- Schön Klinik München Harlaching - FIFA Medical Centre, Center for Foot and Ankle Surgery, Harlachinger Straße 51, 81547, Munich, Germany
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Marchioninistraße 15, 81377, Munich, Germany
| | - Alexander Mehlhorn
- Schön Klinik München Harlaching - FIFA Medical Centre, Center for Foot and Ankle Surgery, Harlachinger Straße 51, 81547, Munich, Germany
| | - Markus Walther
- Schön Klinik München Harlaching - FIFA Medical Centre, Center for Foot and Ankle Surgery, Harlachinger Straße 51, 81547, Munich, Germany
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17
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Pfahl K, Röser A, Gottschalk O, Hörterer H, Mehlhorn A, Dolp PA, Walther M. Common bacteria and treatment options for the acute and chronic infection of the total ankle arthroplasty. Foot Ankle Surg 2022; 28:1008-1013. [PMID: 35210186 DOI: 10.1016/j.fas.2022.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/05/2022] [Accepted: 02/14/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND There is little valid data available on managing infected total ankle arthroplasty (TAA). METHODS A single-center, retrospective evaluation from 20 patients with PJI (periprosthetic joint infection) of the ankle compared the bacteria isolated by preoperative arthrocentesis and intraoperative cultures to the pathogens of knee PJI. Long-term failure rates of irrigation and debridement (I&D) and polyethylene exchange, revision arthroplasty, and arthrodesis were analyzed. RESULTS The most common bacteria were Staphylococcus aureus and Coagulase-negative staphylococci. There was no significant difference when comparing the causing pathogens of PJI of the ankle with the knee. After a follow-up of 50,4 months, the long-term failure rate after I&D and polyethylene exchange was 40%, and of revision was 9%. CONCLUSIONS We concluded that the pathogenesis of PJI of the ankle and knee seems to be comparable. Regarding treatment options, we found that standardized techniques for PJIs of the knee have their limitations regarding infected TAA.
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Affiliation(s)
- Kathrin Pfahl
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany.
| | - Anke Röser
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany
| | - Oliver Gottschalk
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Germany
| | - Hubert Hörterer
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Germany
| | - Alexander Mehlhorn
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany
| | - Patrick A Dolp
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany
| | - Markus Walther
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany
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18
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Hurley DJ, Davey MS, Hurley ET, Murawski CD, Calder JDF, D'Hooghe P, van Bergen CJA, Walls RJ, Ali Z, Altink JN, Batista J, Bayer S, Berlet GC, Buda R, Dahmen J, DiGiovanni CW, Ferkel RD, Gianakos AL, Giza E, Glazebrook M, Guillo S, Hangody L, Haverkamp D, Hintermann B, Hogan MV, Hua Y, Hunt K, Jamal MS, Karlsson J, Kearns S, Kerkhoffs GMMJ, Lambers K, Lee JW, McCollum G, Mercer NP, Mulvin C, Nunley JA, Paul J, Pearce C, Pereira H, Prado M, Raikin SM, Savage-Elliott I, Schon LC, Shimozono Y, Stone JW, Stufkens SAS, Sullivan M, Takao M, Thermann H, Thordarson D, Toale J, Valderrabano V, Vannini F, van Dijk CN, Walther M, Yasui Y, Younger AS, Kennedy JG. Paediatric ankle cartilage lesions: Proceedings of the International Consensus Meeting on Cartilage Repair of the Ankle. J ISAKOS 2022; 7:90-94. [PMID: 35774008 DOI: 10.1016/j.jisako.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/03/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND The evidence supporting best practice guidelines in the field of cartilage repair of the ankle are based on both low quality and low levels of evidence. Therefore, an international consensus group of experts was convened to collaboratively advance toward consensus opinions based on the best available evidence on key topics within cartilage repair of the ankle. The purpose of this article is to report the consensus statements on "Pediatric Ankle Cartilage Lesions" developed at the 2019 International Consensus Meeting on Cartilage Repair of the Ankle. METHODS Forty-three international experts in cartilage repair of the ankle representing 20 countries convened to participate in a process based on the Delphi method of achieving consensus. Questions and statements were drafted within four working groups focusing on specific topics within cartilage repair of the ankle, after which a comprehensive literature review was performed and the available evidence for each statement was graded. Discussion and debate occurred in cases where statements were not agreed upon in unanimous fashion within the working groups. A final vote was then held, and the strength of consensus was characterised as follows: consensus: 51-74%; strong consensus: 75-99%; unanimous: 100%. RESULTS A total of 12 statements on paediatric ankle cartilage lesions reached consensus during the 2019 International Consensus Meeting on Cartilage Repair of the Ankle. Five achieved unanimous support, and seven reached strong consensus (>75% agreement). All statements reached at least 84% agreement. CONCLUSIONS This international consensus derived from leaders in the field will assist clinicians with the management of paediatric ankle cartilage lesions.
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Affiliation(s)
- Daire J Hurley
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Martin S Davey
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Eoghan T Hurley
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Christopher D Murawski
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
| | - James D F Calder
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Pieter D'Hooghe
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Raymond J Walls
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Zakariya Ali
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - J Nienke Altink
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jorge Batista
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Steve Bayer
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Gregory C Berlet
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Roberto Buda
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jari Dahmen
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Richard D Ferkel
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Arianna L Gianakos
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Eric Giza
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Mark Glazebrook
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Stéphane Guillo
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Laszlo Hangody
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Daniel Haverkamp
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Beat Hintermann
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - MaCalus V Hogan
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yinghui Hua
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Kenneth Hunt
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - M Shazil Jamal
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jón Karlsson
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Stephen Kearns
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Gino M M J Kerkhoffs
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Kaj Lambers
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jin Woo Lee
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Graham McCollum
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Nathaniel P Mercer
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Conor Mulvin
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - James A Nunley
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jochen Paul
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Christopher Pearce
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Helder Pereira
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Marcelo Prado
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Steven M Raikin
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Ian Savage-Elliott
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Lew C Schon
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yoshiharu Shimozono
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - James W Stone
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Sjoerd A S Stufkens
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Martin Sullivan
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Masato Takao
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Hajo Thermann
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - David Thordarson
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - James Toale
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Victor Valderrabano
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Francesca Vannini
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - C Niek van Dijk
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Markus Walther
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Youichi Yasui
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Alastair S Younger
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - John G Kennedy
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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19
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Zanzinger C, Harrasser N, Gottschalk O, Dolp P, Hinterwimmer F, Hoerterer H, Walther M. One-year Follow-Up Results with Hydrogel Implant in Therapy of Hallux Rigidus: Case Series with 44 Patients. Z Orthop Unfall 2022; 160:414-421. [PMID: 33647994 DOI: 10.1055/a-1365-9655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The Cartiva implant (CI) is being increasingly used in the surgical therapy of hallux rigidus. Despite a growing number of studies, numerous questions regarding patient selection remain unanswered. PATIENTS AND METHODS As part of a retrospective case series with prospective follow-up (average follow-up period: 12 months), a total of 44 patients (male/female = 16/28; mean age at the time of surgery: 55.4 years) with 44 CI were analysed (VAS, EFAS-, AOFAS-score). Using a correlation analysis and a machine learning algorithm, risk factors for therapy failure were investigated. RESULTS The overall survival rate of the CI was 93% at 12 months. The VAS, EFAS and AOFAS scores showed a significant improvement in comparison to the preoperative condition. The mobility of the metatarsophalangeal joint showed no increase. Patients with a medium osteoarthritis grade and a medium level of clinical restraint showed the greatest improvement in relation to their preoperative condition. CONCLUSION The CI can be seen as an effective therapy for hallux rigidus. Nonetheless, realistic patient expectations must be communicated.
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Affiliation(s)
- Christoph Zanzinger
- Specialist Centre for Foot and Ankle Joint Surgery, Schön Clinic Munich-Harlaching, Munich, Germany
| | - Norbert Harrasser
- Orthopaedics, Clinics Rechts der Isar of the Technical University of Munich, Germany
| | - Oliver Gottschalk
- Specialist Centre for Foot and Ankle Joint Surgery, Schön Clinic Munich-Harlaching, Munich, Germany.,Department of Gerneral, Trauma and Reconstructive Surgery, LMU Munich, Germany
| | - Patrick Dolp
- Specialist Centre for Foot and Ankle Joint Surgery, Schön Clinic Munich-Harlaching, Munich, Germany
| | - Florian Hinterwimmer
- Orthopaedics, Clinics Rechts der Isar of the Technical University of Munich, Germany
| | - Hubert Hoerterer
- Specialist Centre for Foot and Ankle Joint Surgery, Schön Clinic Munich-Harlaching, Munich, Germany.,Department of Gerneral, Trauma and Reconstructive Surgery, LMU Munich, Germany
| | - Markus Walther
- Specialist Centre for Foot and Ankle Joint Surgery, Schön Clinic Munich-Harlaching, Munich, Germany
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20
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Dreyer F, Fikentscher T, Bigdeli A, Walther M, Harrasser N. [Implantation of a pseudo knee prosthesis after rotationplasty: a case report]. Orthopadie (Heidelb) 2022; 51:590-594. [PMID: 35776153 DOI: 10.1007/s00132-022-04233-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/18/2022] [Indexed: 06/15/2023]
Abstract
Rotationplasty of the knee joint is an established biological reconstruction method with excellent clinical results for patients with tumor-associated resection of the knee joint. The changed biomechanics of the pseudo knee and high demand of the generally young patients commonly leads to the development of osteoarthritic changes in this area. We report on the implantation of an ankle prosthesis in the area of the pseudo knee joint, which made it possible to use a conventional exoprosthesis. Nine months postsurgery we found clinically good results and a satisfied patient.
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Affiliation(s)
- Florian Dreyer
- Abteilung für Fuß- und Sprunggelenkchirurgie, Artemed Klinikum München Süd, Am Isarkanal 30, 81379, München, Deutschland.
| | - Tobias Fikentscher
- Abteilung für Fuß- und Sprunggelenkchirurgie, Artemed Klinikum München Süd, Am Isarkanal 30, 81379, München, Deutschland
| | - Amir Bigdeli
- Abteilung für Diagnostische und Interventionelle Radiologie, Artemed Klinikum München Süd, Am Isarkanal 30, 81379, München, Deutschland
| | - Markus Walther
- Fachzentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München-Harlaching, Harlachinger Str. 51, 81547, München, Deutschland
| | - Norbert Harrasser
- Klinik und Poliklinik für Orthopädie und Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
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21
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Danilkowicz R, Murawski C, Pellegrini M, Walther M, Valderrabano V, Angthong C, Adams S. Nonoperative and Operative Soft-Tissue and Cartilage Regeneration and Orthopaedic Biologics of the Foot and Ankle: An Orthoregeneration Network Foundation Review. Arthroscopy 2022; 38:2350-2358. [PMID: 35605840 DOI: 10.1016/j.arthro.2022.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 02/02/2023]
Abstract
Orthoregeneration is defined as a solution for orthopaedic conditions that harnesses the benefits of biology to improve healing, reduce pain, improve function, and optimally, provide an environment for tissue regeneration. Options include drugs, surgical intervention, scaffolds, biologics as a product of cells, and physical and electromagnetic stimuli. The goal of regenerative medicine is to enhance the healing of tissue after musculoskeletal injuries as both isolated treatment and adjunct to surgical management, using novel therapies to improve recovery and outcomes. Various orthopaedic biologics (orthobiologics) have been investigated for the treatment of pathology involving the foot and ankle (including acute traumatic injuries and fractures, tumor, infection, osteochondral lesions, arthritis, and tendinopathy) and procedures, including osteotomy or fusion. Promising and established treatment modalities include 1) bone-based therapies (such as cancellous or cortical autograft from the iliac crest, proximal tibia, and/or calcaneus, fresh-frozen or freeze-dried cortical or cancellous allograft, including demineralized bone matrix putty or powder combined with growth factors, and synthetic bone graft substitutes, such as calcium sulfate, calcium phosphate, tricalcium phosphate, bioactive glasses (often in combination with bone marrow aspirate), and polymers; proteins such as bone morphogenic proteins; and platelet-derived growth factors; 2) cartilage-based therapies such as debridement, bone marrow stimulation (such as microfracture or drilling), scaffold-based techniques (such as autologous chondrocyte implantation [ACI] and matrix-induced ACI, autologous matrix-induced chondrogenesis, matrix-associated stem cell transplantation, particulated juvenile cartilage allograft transplantation, and minced local cartilage cells mixed with fibrin and platelet rich plasma [PRP]); and 3) blood, cell-based, and injectable therapies such as PRP, platelet-poor plasma biomatrix loaded with mesenchymal stromal cells, concentrated bone marrow aspirate, hyaluronic acid, and stem or stromal cell therapy, including mesenchymal stem cell allografts, and adipose tissue-derived stem cells, and micronized adipose tissue injections. LEVEL OF EVIDENCE: Level V, expert opinion.
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Affiliation(s)
- Richard Danilkowicz
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A
| | - Christopher Murawski
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A
| | - Manuel Pellegrini
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A
| | - Markus Walther
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A
| | - Victor Valderrabano
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A
| | - Chayanin Angthong
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A
| | - Samuel Adams
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, U.S.A.
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22
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Saxena A, Giai Via A, Grävare Silbernagel K, Walther M, Anderson R, Gerdesmeyer L, Maffulli N. Current Consensus for Rehabilitation Protocols of the Surgically Repaired Acute Mid-Substance Achilles Rupture: A Systematic Review and Recommendations From the "GAIT" Study Group. J Foot Ankle Surg 2022; 61:855-861. [PMID: 35120805 DOI: 10.1053/j.jfas.2021.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/01/2021] [Accepted: 12/01/2021] [Indexed: 02/03/2023]
Abstract
Surgical repair of acute mid-substance Achilles tendon ruptures is performed in active patients, but the postoperative rehabilitation program is often based on the experience of the surgeon or therapist, rather than on evidence-based protocols. The aim of the study is to establish an evidence-based protocol for rehabilitation. This study is a consensus statement. The "GAIT" study group (German, American, and Italian Tendon), an informal collection of 4 experienced foot and ankle surgeons, met to address the question of what items they felt were important relative to rehabilitate a surgically repaired Achilles tendon acute rupture. Thirty-three statements were formulated. A value of 100% agreement by all the members was set to produce a proposed consensus statement. A value of 80% consensus was set to produce "strong recommendation." A systematic review of the literature was also performed. The GAIT group reach 100% agreement on the average postoperative non-weightbearing for 2.3 weeks, the foot in plantarflexion for the first 4 weeks, avoiding ROM exercises beyond neutral, and both stretching and eccentric exercise, not started before 12 weeks. Concentric bilateral heel raises should be performed after 6 weeks, and the average return to initiate sports, was 24.4 weeks. The use of a 1/8th-1/4th inch heel cushions in daily shoes after 8 weeks, the use of an antigravity treadmill for rehabilitation, and the return to sports based on heel raise repetitions is strongly recommended. Given lack of established verified protocols, the recommendations by our experienced panel should be considered. These proposed consensus statements could be used as a basis for larger controlled trials, and develop best practices.
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Affiliation(s)
- Amol Saxena
- Department of Sports Medicine, Sutter-PAMF, Palo Alto, CA.
| | - Alessio Giai Via
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno Italy
| | - Karin Grävare Silbernagel
- Department of Physical Therapy, University of Delaware, STAR Health Sciences Complex Campus, Newark, DE
| | - Markus Walther
- Schön Klinik München Harlaching - FIFA Medical Centre of Excellence, München, Germany
| | | | - Ludger Gerdesmeyer
- Department of Orthopaedic Surgery & Traumatology, Public Health Clinic, Kiel, Germany
| | - Nicola Maffulli
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno Italy; Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, London, England; School of Pharmacy and Bioengineering, Keele University School of Medicine, Stoke on Trent, England
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23
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Gottschalk O, Mazet J, Kerschl F, Schenk H, Suero EM, Hörterer H, Böcker W, Walther M. Correlation between EFAS- and MOCART score and clinical outcome after AMIC ®-procedure for osteochondral lesion of the talus. Arch Orthop Trauma Surg 2022; 143:2895-2900. [PMID: 35597883 DOI: 10.1007/s00402-022-04474-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/02/2022] [Indexed: 11/02/2022]
Abstract
INTRODUCTION Even though an increased interest in the use of the EFAS Score (European Foot and Ankle Society) has been observed, no data comparing it with radiological findings has been presented in the literature. Accordingly, the aim of this study is to investigate how the post-operative integration of the AMIC® (autologous matrix-induced chondrogenesis)-membrane for osteochondral lesion of the talus using the MOCART (Magnetic Resonance Observation of Cartilage Repair Tissue) - Score is related to the clinical satisfaction of the patients. MATERIAL AND METHODS A group of 24 patients aged between 17 and 63 (with a mean age of 35.7) were included at least 1 year post-operatively. They had all undergone an AMIC®-procedure of the talus. MRI findings using the MOCART Score were correlated to the EFAS Score at the same time point. RESULTS Our main results showed no correlation between the MOCART-Score and the EFAS-Score (R = - 0.08). There was also no correlation between the MOCART-Score, the FFI-Score (Foot and Function Index) (R = 0.2) and the MOXFQ-Score (Manchester-Oxford Foot Questionnaire) (R = 0.12). There was no correlation between components of the MOCART-Score with the EFAS-Score (R between - 0.32 and 0.23). CONCLUSION Our results question whether the MRI (a standard part of AMIC®-procedure-of-the-ankle post-operative follow-up) is still the most appropriate tool for post-operative control. They also offer a starting point for future discussion regarding the need for post-operative MRI and the use of other radiological diagnostics in relation to clinical satisfaction.
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Affiliation(s)
- Oliver Gottschalk
- Centre for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Strasse 51, 81547, Munich, Germany. .,Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Centre Munich (MUM), University Hospital, LMU Munich, Munich, Germany.
| | - Judith Mazet
- Centre for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Strasse 51, 81547, Munich, Germany.,Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Centre Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Florian Kerschl
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Centre Munich (MUM), University Hospital, LMU Munich, Munich, Germany.,Department of Trauma Surgery and Orthopaedics, Krankenhaus Landshut-Achdorf, Landshut, Germany
| | | | - Eduardo M Suero
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Centre Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Hubert Hörterer
- Centre for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Strasse 51, 81547, Munich, Germany.,Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Centre Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Wolfgang Böcker
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Centre Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Markus Walther
- Centre for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Strasse 51, 81547, Munich, Germany
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Mehlhorn AT, Illgner U, Lemperle S, Huber V, Hoerterer H, Gottschalk O, Legrand MA, Krenn V, Walther M. [Does inflammatory activity of Charcot foot affect successful corrective arthrodesis?]. Orthopade 2022; 51:499-506. [PMID: 35476118 DOI: 10.1007/s00132-022-04251-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/14/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Neuro-osteoarthropathy of the foot (CN) is divided into an active and inactive stage, with impact on the further treatment. The histopathological Charcot score (HCS) can be used, to grade the inflammatory activity in tissue samples. RESEARCH QUESTION This study aims to clarify whether successful bony healing after arthrodesis is related to inflammatory activity of the disease. MATERIAL AND METHOD N = 80 patients underwent corrective arthrodesis of the midfoot (group 1) or hindfoot/ankle (group 2). A distinction was made between patients with/without diabetes mellitus and with/without pain perception. Intraoperative samples were taken to determine HCS. The osseous healing of the arthrodesis was determined by computed tomography 12 weeks postoperatively. RESULTS There was an indirect correlation between bony consolidation and HCS. In group 2, there was a significantly worse bony healing in patients without pain sensation. There seems to be a tendency for HCS to be increased in patients without diabetes/no pain sensation. DISCUSSION The present study confirms the assumption that corrective arthrodesis should be performed in the inactive stage of CN only. High activity levels obviously impede bony healing. HCS represents a relevant prognostic tool for surgical treatment.
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Affiliation(s)
- Alexander T Mehlhorn
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, München, Deutschland.
- Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland.
- Sektion für Diabetische und Neuropathische Fußerkrankungen, Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, Harlachinger Straße 51, 81547, München, Deutschland.
| | - Ulrich Illgner
- Orthopädische Privatpraxis Seintsch Illgner, Koblenz, Deutschland
| | - Stefan Lemperle
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, München, Deutschland
| | - Verena Huber
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, München, Deutschland
| | - Hubert Hoerterer
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, München, Deutschland
- Klinik für Allgemeine, Unfall- und Wiederherstellungschirurgie, Universitätsklinikum der LMU München, München, Deutschland
| | - Oliver Gottschalk
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, München, Deutschland
- Klinik für Allgemeine, Unfall- und Wiederherstellungschirurgie, Universitätsklinikum der LMU München, München, Deutschland
| | - Maria Anna Legrand
- Zentrum für Anästhesiologie und Intensivmedizin, Schönklinik München-Harlaching, München, Deutschland
| | - Veit Krenn
- MVZ-Zentrum für Histologie, Zytologie und Molekulare Diagnostik GmbH, Trier, Deutschland
| | - Markus Walther
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, München, Deutschland
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Dahmen J, Bayer S, Toale J, Mulvin C, Hurley ET, Batista J, Berlet GC, DiGiovanni CW, Ferkel RD, Hua Y, Kearns S, Lee JW, Pearce CJ, Pereira H, Prado MP, Raikin SM, Schon LC, Stone JW, Sullivan M, Takao M, Valderrabano V, van Dijk CN, Ali Z, Altink JN, Buda R, Calder JDF, Davey MS, D'Hooghe P, Gianakos AL, Giza E, Glazebrook M, Hangody L, Haverkamp D, Hintermann B, Hogan MV, Hunt KJ, Hurley DJ, Jamal MS, Karlsson J, Kennedy JG, Kerkhoffs GMMJ, Lambers KTA, McCollum G, Mercer NP, Nunley JA, Paul J, Savage-Elliott I, Shimozono Y, Stufkens SAS, Thermann H, Thordarson D, Vannini F, van Bergen CJA, Walls RJ, Walther M, Yasui Y, Younger ASE, Murawski CD. Osteochondral Lesions of the Tibial Plafond and Ankle Instability With Ankle Cartilage Lesions: Proceedings of the International Consensus Meeting on Cartilage Repair of the Ankle. Foot Ankle Int 2022; 43:448-452. [PMID: 34983250 DOI: 10.1177/10711007211049169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND An international consensus group of experts was convened to collaboratively advance toward consensus opinions based on the best available evidence on key topics within cartilage repair of the ankle. The purpose of this article is to present the consensus statements on osteochondral lesions of the tibial plafond (OLTP) and on ankle instability with ankle cartilage lesions developed at the 2019 International Consensus Meeting on Cartilage Repair of the Ankle. METHODS Forty-three experts in cartilage repair of the ankle were convened and participated in a process based on the Delphi method of achieving consensus. Questions and statements were drafted within 4 working groups focusing on specific topics within cartilage repair of the ankle, after which a comprehensive literature review was performed and the available evidence for each statement was graded. Discussion and debate occurred in cases where statements were not agreed on in unanimous fashion within the working groups. A final vote was then held. RESULTS A total of 11 statements on OLTP reached consensus. Four achieved unanimous support and 7 reached strong consensus (greater than 75% agreement). A total of 8 statements on ankle instability with ankle cartilage lesions reached consensus during the 2019 International Consensus Meeting on Cartilage Repair of the Ankle. One achieved unanimous support, and seven reached strong consensus (greater than 75% agreement). CONCLUSION These consensus statements may assist clinicians in the management of these difficult clinical pathologies. LEVEL OF EVIDENCE Level V, mechanism-based reasoning.
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Ettinger S, Gottschalk O, Kostretzis L, Plaas C, Körner D, Walther M, Becher C. One-year follow-up data from the German Cartilage Registry (KnorpelRegister DGOU) in the treatment of chondral and osteochondral defects of the talus. Arch Orthop Trauma Surg 2022; 142:205-210. [PMID: 33047231 DOI: 10.1007/s00402-020-03631-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/30/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Chondral and osteochondral lesions of the talus (OLTs) remain a challenging issue with numerous operative treatments proposed to date. The aim of this study was to evaluate 1-year follow-up data in the German Cartilage Registry (KnorpelRegister DGOU). METHODS Among 401 patients in the database, 114 patients with a complete 1-year Foot and Ankle Outcome (FAOS) score for subscale Pain as the primary variable were included. A total of 12 different surgical treatments were performed. However, 8 techniques were carried out in negligible numbers of patients (n = 1-3), leaving 89 patients treated with the following techniques: arthroscopic antegrade bone marrow stimulation (group A; n = 32), autologous chondrocyte implantation with autologous cancellous bone grafting (group B; n = 9), matrix-augmented bone marrow stimulation (group C; n = 22), and matrix-augmented bone marrow stimulation with autologous cancellous bone grafting (group D; n = 26). Group differences and possible influencing variables such as age and sex were evaluated. Level of significance was set at p < 0.05 for all statistical tests. RESULTS All four treatment groups showed significant improvement of the FAOS scores at 1 year postoperatively compared with their preoperative scores. No significant differences were found with respect to score changes among the groups. A positive correlation between FAOS subscale Pain improvement and defect size volume and negative correlations between increasing age and FAOS subscales Sports/Rec and QoL were found. Concomitant ankle stabilization led to greater improvement in FAOS subscales Symptoms and ADL than in patients with no stabilization. FAOS subscale Pain showed greater improvement in women than in men. CONCLUSION All analyzed treatment options were effective for treatment of OLTs. In particular, large defects appeared to benefit from treatment. In the presence of concomitant ankle instability, a stabilizing procedure appeared to have a positive impact on the outcome.
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Affiliation(s)
- S Ettinger
- Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH) im Diakovere Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany
| | - O Gottschalk
- Zentrum für Fuss- and Sprunggelenkchirurgie, (MHA) Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, München, Germany
| | - L Kostretzis
- International Center for Orthopedics, ATOS Clinic Heidelberg, Bismarckstr. 9-15, 69115, Heidelberg, Germany
| | - C Plaas
- Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH) im Diakovere Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany
| | - D Körner
- Department of Traumatology and Reconstructive Surgery, BG Trauma Center Tübingen, Eberhard Karls University Tübingen, Schnarrrenbergstr. 95, 72076, Tübingen, Germany
| | - M Walther
- Zentrum für Fuss- and Sprunggelenkchirurgie, (MHA) Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, München, Germany
| | - C Becher
- Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH) im Diakovere Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany. .,International Center for Orthopedics, ATOS Clinic Heidelberg, Bismarckstr. 9-15, 69115, Heidelberg, Germany.
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Rohde F, Walther M, Wächter J, Knetzger N, Lotz C, Windbergs M. In-situ tear fluid dissolving nanofibers enable prolonged viscosity-enhanced dual drug delivery to the eye. Int J Pharm 2022; 616:121513. [PMID: 35085733 DOI: 10.1016/j.ijpharm.2022.121513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 12/29/2022]
Abstract
Liquid and semi-solid formulations are the most commonly used drug delivery systems for ophthalmic diseases. Upon application into the conjunctival sac, these systems introduce a variable and unphysiologically high liquid volume to the eye, resulting in overflow and extensive nasolacrimal drainage, accounting for dosing inaccuracy and short ocular residence time. In this study, we present nanofibrous electrospun scaffolds composed of biocompatible polymers, overcoming these challenges by immediate drug release. The fibers incorporate gentamicin and dexamethasone, intended for the treatment of bacterial conjunctivitis. Upon contact with the ocular surface, the nanofibers immediately dissolve in the tear fluid, quantitatively releasing the two actives, yielding over92% drug recovery, determined with fluorimetric and chromatographic quantifications methods. Simultaneously, the viscosity of the tear fluid increases, shown by complex viscometry measurements. A newly developed ex vivo microfluidic porcine cornea model was used to evaluated ocular residence time. In contrast to fluid eye drops, the contact time was significantly prolonged and 20min after application, an increase in drug availability on the ocular surface of 342% was observed. Biocompatibility of the polymer system was demonstrated in an OECD approved in vitro cornea model. The antibacterial activity after processing was evaluated according to EUCAST guidelines, and storage stability of the system was confirmed over a 12-week period. This innovative drug delivery system poses a highly promising platform technology, overcoming challenges associated with conventional dosage forms for drug delivery to the anterior eye and thus significantly advancing therapeutic approaches.
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Affiliation(s)
- F Rohde
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany
| | - M Walther
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany
| | - J Wächter
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany
| | - N Knetzger
- Translational Center for Regenerative Therapies (TLZ-RT), Fraunhofer Institute for Silicate Research (ISC), Neunerplatz 2, 97082 Würzburg, Germany; Chair of Tissue Engineering and Regenerative Medicine (TERM), University Hospital Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - C Lotz
- Translational Center for Regenerative Therapies (TLZ-RT), Fraunhofer Institute for Silicate Research (ISC), Neunerplatz 2, 97082 Würzburg, Germany; Chair of Tissue Engineering and Regenerative Medicine (TERM), University Hospital Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - M Windbergs
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany.
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Siefke T, Walther M, Stock C, Zeitner UD. Fabrication influences on a miniaturised stokes polarimeter consisting of stacked nano-optical wire grid polarizer and retarders. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202226610021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The polarization properties of light can be fully controlled with nano-optical wire grid polarizers and artificial birefringent grating structures. We demonstrate an integrated polarimeter based on stacked layers of such elements. However, the optical performance of such elements is fundamentally limited and may be further altered by deviations arising from the fabrication processes. In this contribution we investigate the influences on the polarimetry performance for such a device.
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Murawski CD, Jamal MS, Hurley ET, Buda R, Hunt K, McCollum G, Paul J, Vannini F, Walther M, Yasui Y, Ali Z, Altink JN, Batista J, Bayer S, Berlet GC, Calder JD, Dahmen J, Davey MS, D’Hooghe P, DiGiovanni CW, Ferkel RD, Gianakos AL, Giza E, Glazebrook M, Hangody L, Haverkamp D, Hintermann B, Hua Y, Hurley DJ, Karlsson J, Kearns S, Kennedy JG, Kerkhoffs GM, Lambers K, Lee JW, Mercer NP, Mulvin C, Nunley JA, Pearce C, Pereira H, Prado M, Raikin SM, Savage-Elliott I, Schon LC, Shimozono Y, Stone JW, Stufkens SA, Sullivan M, Takao M, Thermann H, Thordarson D, Toale J, Valderrabano V, van Bergen CJ, Niek van Dijk C, Walls RJ, Younger AS, Hogan MV. Terminology for Osteochondral Lesions of the Ankle Proceedings of the International Consensus Meeting on Cartilage Repair of the Ankle. J ISAKOS 2022; 7:62-66. [DOI: 10.1016/j.jisako.2021.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Walther M, Siefke T, Gerold K, Zeitner UD. Switchable optics based on guided mode resonance in lithographically patterned vanadium dioxide. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202226605011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Vanadium dioxide as a phase change material is usually known for its consideration in smart window applications. However, the attention shifts to using it in actively switched optical elements. The main challenges are the deposition of vanadium dioxide with the correct stoichiometry and phase and the patterning of the material. We propose a design with a corresponding manufacturing process for an actively switchable reflector at 1550 nm wavelength with a contrast near 105 by using the thermochromic effect of vanadium dioxide. The reflectance of the proposed optical element can be controlled between an ultra-low and a high reflecting state. We elaborate on the proposed optical design, the manufacturing process including deposition, annealing and patterning processes, and discuss already achieved results.
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Hörterer H, Oppelt S, Böcker W, Gottschalk O, Harrasser N, Walther M, Polzer H, Baumbach SF. Patient-Reported Outcomes of Surgically Treated Insertional Achilles Tendinopathy. Foot Ankle Int 2021; 42:1565-1569. [PMID: 34154453 DOI: 10.1177/10711007211023060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The aim of this study was to assess the patient-reported outcome measures (PROMs) in patients with insertional Achilles tendinopathy (IAT) treated surgically by debridement of all pathologies through a midline-incision trans-achillary approach (MITA). METHODS This is a retrospective cohort study with current follow-up. Patients treated surgically by a MITA, addressing all pathologies of IAT, with at least 12 months of follow-up were included. Demographics, medical history, surgical details, and complications were recorded. Patient-reported outcomes were assessed using the Foot Function Index (FFI), Victorian Institute of Sport Assessment-Achilles questionnaire (VISA-A-G), visual analog scale foot and ankle (VAS-FA), and 12-Item Short-Form Health Survey (SF-12). Longitudinal FFI data were available for 48% of the patients. RESULTS A total of 118 patients (63.4%) with a mean follow-up of 50 ± 25 months were included. The FFI improved from 53 (24) preoperatively to 2 (11) points at the final follow-up. The final VISA-A-G score was 93 (26), the VAS-FA score 93 (15), the SF-12 Physical Component Summary 56 (8), and the SF-12 Mental Component Summary 55 (12) points. There was an additional FFI improvement between 12 months and the final follow-up. Up to 47% (VISA-A-G) of patients had residual symptoms. A postoperative shoe conflict was the only parameter negatively affecting the PROMs (P < .001). CONCLUSION Addressing all pathologies of IAT by the MITA resulted in overall good postoperative PROMs after 4 years. But up to 47% of patients remained impaired. The only parameter correlating with an impaired PROM was a postoperative shoe conflict. LEVEL OF EVIDENCE Level IV, retrospective cohort study.
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Affiliation(s)
- Hubert Hörterer
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Bavaria, Germany.,Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Sonja Oppelt
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Wolfgang Böcker
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Oliver Gottschalk
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Bavaria, Germany.,Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Norbert Harrasser
- Department of Orthopedics and Sports Orthopedics, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Markus Walther
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Bavaria, Germany.,Department of Orthopedics and Orthopedic Surgery, Julius-Maximilians-University, Würzburg, Germany
| | - Hans Polzer
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Sebastian Felix Baumbach
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
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Gottschalk O, Baumbach SF, Altenberger S, Körner D, Aurich M, Plaass C, Ettinger S, Guenther D, Becher C, Hörterer H, Walther M. Influence of the Medial Malleolus Osteotomy on the Clinical Outcome of M-BMS + I/III Collagen Scaffold in Medial Talar Osteochondral Lesion (German Cartilage Register/Knorpelregister DGOU). Cartilage 2021; 13:1373S-1379S. [PMID: 33030049 PMCID: PMC8808948 DOI: 10.1177/1947603520961169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Osteochondral lesions of the talus are common injuries, with one of the leading treatment options being the M-BMS (matrix-augmented bone marrow stimulation) + I/III collagen scaffold. Osteotomy of the medial malleolus is not unusual but presents the risk of malunion or irritation by hardware. The aim of the study was to analyze data from the German Cartilage Society (Knorpelregister DGOU) to evaluate the influence of medial malleolar osteotomy on clinical results of M-BMS + I/III collagen scaffold. DESIGN The ankle module of the Cartilage Register includes a total of 718 patients, while 45 patients met the inclusion criteria. Patients were treated with an M-BMS + I/III collagen scaffold of the medial talus, 30 without and 15 with an osteotomy of the medial malleolus. The follow-up evaluations included FAAM (Foot and Ankle Ability Measure), FAOS (Foot and Ankle Outcome Score), and VAS (visual analogue scale). RESULTS Forty-five patients (22 male, 23 female) aged between 18 and 69 years (mean: 34 years) were included in this study. Between preoperative and 12 months postoperative, we noted a significant improvement in FAAM-ADL (Activity of Daily Living) (P = 0.004) as well as FAOS-Pain (P = 0.001), FAOS-Stiffness (P = 0.047), FAOS-ADL (P = 0.002), FAOS-Sport (P = 0.001), and FAOS Quality of Life (P = 0.009). There was no significant difference between patients who underwent an osteotomy or not. CONCLUSION The results show a significant improvement in patients' outcome scores following a M-BMS + I/III collagen scaffold. No statistical difference was noted among those undergoing medial malleolar osteotomy.
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Affiliation(s)
- Oliver Gottschalk
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany,Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany,Oliver Gottschalk, Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Harlachinger Straße 51, Munich, 81547, Germany
| | - Sebastian Felix Baumbach
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany,Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | | | - Daniel Körner
- Department of Traumatology and Reconstructive Surgery, BG Trauma Centre Tübingen, Eberhard Karls University, Tübingen, Germany
| | - Matthias Aurich
- Center for Orthopedics and Trauma Surgery, Klinikum Mittleres Erzgebirge, Zschopau, Germany
| | - Christian Plaass
- Department for Foot and Ankle Surgery, Diakovere Annastift, Orthopedic Clinic of the Hannover Medical School, Hannover, Germany
| | - Sarah Ettinger
- Department for Foot and Ankle Surgery, Diakovere Annastift, Orthopedic Clinic of the Hannover Medical School, Hannover, Germany
| | - Daniel Guenther
- Department of Orthopedic Surgery, Trauma Surgery, and Sports Medicine, Cologne Merheim Medical Center, Witten/Herdecke University, Witten, Germany
| | - Christoph Becher
- Center for Knee, Hip, and Foot Surgery, ATOS Clinic, Heidelberg, Germany
| | - Hubert Hörterer
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany,Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Markus Walther
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
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Johansen JK, Jordan M, Thomas M, Walther M, Simatira AM, Waizy H. Surgical treatment of tibialis anterior tendon rupture. Foot Ankle Surg 2021; 27:515-520. [PMID: 32948441 DOI: 10.1016/j.fas.2020.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/16/2020] [Accepted: 06/25/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Ruptures of the anterior tibial tendon can be both acute and chronic. The acute lesion can be caused by a sharp cutting trauma or by blunt or hyperplantarflexion trauma. Spontaneous ruptures are rare, and most ruptures are due to degenerative changes mainly affecting the distal avascular 5-30 mm of the tendon. Surgical repair is the preferred treatment for physically active patients. Overall, the literature shows that operative repair results in a very good outcome in most patients. This study compares the clinical outcome in patients with anterior tibial tendon rupture, treated with different surgical techniques. METHODS This multicenter cohort study was conducted at four different Foot and Ankle specialized clinics. The study was approved by the local ethical committee. A total of 48 patients with surgically treated tibialis anterior rupture was included. The study protocol included the demographic and clinical data of each patient and the surgical treatment. The VAS-FA PROM was recorded pre- and postoperative in all patients. The mean follow-up were 30 (20.8-48.5) months. RESULTS A significant difference was found in age between patients who stated "good" versus "fair" (p = 0.002) and "very good" versus "fair", i.e. younger age for "fair" p = 0.036, thus showing that younger patients do worse than older patient after surgery when rating the results. However there was no significant difference for older versus younger age looking at the results "poor", "fair, good and very good". The group with chronic tendon ruptures had a significantly higher preoperative VAS-FA than the group sustaining non-traumatic rupture (p = 0.048). There was no significant linear relation between age, postoperative VAS-FA and VAS-FA improvement. Also, we did not find a significant linear relation between age and outcome. Please see Tables 2-4 for results. CONCLUSION The tibialis anterior tendon rupture can be both acute and chronic. We could not identify any significant differences in clinical outcome or PROM between acute and delayed suture of the tibialis anterior tendon rupture. LEVEL OF EVIDENCE Level II. Prospective controlled cohort study.
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Affiliation(s)
- Jens Kurt Johansen
- Foot and Ankle Department, Hvidovre Hospital, Denmark; Hvidovre Hospital, Kettegaards Allé 30, 2630 Hvidovre, Denmark.
| | - Martin Jordan
- Hessingpark-Clinic, Foot and Ankle Department, 86199 Augsburg, Germany
| | - Manfred Thomas
- Hessingpark-Clinic, Foot and Ankle Department, 86199 Augsburg, Germany
| | - Markus Walther
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany
| | - Anna-Maria Simatira
- Schön Klinik München Harlaching - FIFA Medical Centre, 81547 Munich, Germany
| | - Hazibullah Waizy
- Klinik für Orthopädie, Unfallchirurgie und Wirbelsäulentherapie, Donau-Ries Kliniken, Neudegger Allee 6, 86609 Donauwörth, Germany
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Lemperle S, Mehlhorn AT, Walther M. [Diabetic neuropathic osteoarthropathy]. MMW Fortschr Med 2021; 163:65-69. [PMID: 34086239 DOI: 10.1007/s15006-021-9917-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stefan Lemperle
- Zentrum für Fuß- und Sprunggelenkchirurgie - Sektion für diabetische und neuropathische Fußerkrankungen, Schön-Klinik München, Harlaching Str. 51, 81547, München, Deutschland.
| | | | - Markus Walther
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München, München, Deutschland
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35
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Harrasser N, Hörterer H, Walther M. [65/f-increasing ankle discomfort with history of ankle sprains : Preparation for the medical specialist examination: part 53]. Orthopade 2021; 50:148-151. [PMID: 33294941 DOI: 10.1007/s00132-020-04049-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- N Harrasser
- Klinik für Orthopädie und Sportorthopädie, Klinikum rechts der Isar, TU München, Ismaninger Str. 22, 81675, München, Deutschland.
- ECOM® - Excellent Center of Medicine, Arabellastraße 17, 81925, München, Deutschland.
- ATOS MVZ, München, Deutschland.
| | - H Hörterer
- Fachzentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, München, Deutschland
| | - M Walther
- Fachzentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, Harlachinger Str. 51, 81547, München, Deutschland
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Walther M, Valderrabano V, Wiewiorski M, Usuelli FG, Richter M, Baumfeld TS, Kubosch J, Gottschalk O, Wittmann U. Is there clinical evidence to support autologous matrix-induced chondrogenesis (AMIC) for chondral defects in the talus? A systematic review and meta-analysis. Foot Ankle Surg 2021; 27:236-245. [PMID: 32811744 DOI: 10.1016/j.fas.2020.07.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/10/2020] [Accepted: 07/29/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this study is to systematically review the literature on clinical outcomes of patients who have undergone autologous matrix-induced chondrogenesis (AMIC) for treatment of osteochondral lesions of the talus (OCL) and compare the studies' outcomes. METHODS Pubmed and Embase were searched in January 2020 for articles concerning OCL surgery. Studies were included if they had a minimum 1-year follow-up and the primary measures were functional outcomes. The meta-analysis compared the Visual Analogic Score (VAS), the American Orthopedic Foot and Ankle Score (AOFAS), and the Foot Function Index (FFI) between baseline and follow-up of 1-2years, and 3-5years. A random effects model was used to evaluate outcome changes. RESULTS The search returned 15 studies, with a total of 492 patients. The VAS improved 4.45 and 4.6 points from baseline to the 1-2year and 3-5yearfollow-up, respectively (p<0.001). AOFAS improved 31.59 and 32.47 points from baseline to the 1-2year and 3-5yearfollow-up, respectively (p<0.001). The FFI showed a significant improvement of 30.93 points from baseline to year 3-5 (p<0.001). A total of 6 patients with revision surgeries have been reported within the follow up period. It was not possible to correlate clinical features like lesion size, surgical approach, and bone marrow stimulation technique to the reported outcome. CONCLUSION Surgical treatment of OCL via the AMIC procedure provided significant improvement in the functional outcome and pain scores when compared to the pre-operative values. Improvements were observed up to 5years post-operatively.
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Affiliation(s)
- Markus Walther
- Schön Klinik München Harlaching - FIFA Medical Centre, Harlachinger Straße 51, 81547 München, Germany.
| | - Victor Valderrabano
- Swiss Ortho Center Schmerzklinik Basel, Swiss Medical Network, Hirschgässlein 15, 4010 Basel, Switzerland.
| | - Martin Wiewiorski
- Kantonspital Winterthur, Zeughausstrasse 73, 8400 Winterthur, Switzerland.
| | - Federico Giuseppe Usuelli
- Istituto Ortopedico Galeazzi, USPeC - Unità Specialistica Piede e Caviglia, Foot and Ankle Department, Italy.
| | - Martinus Richter
- Klinik for Foot and Ankle Surgery, Rummelsberg 71, 90592 Schwarzenbruck, Germany.
| | - Tiago Soares Baumfeld
- Hospital Felicio Rocho, Department of Orthopaedics, Av. do Contorno, 9530 Belo Horizonte, MG, Brazil.
| | - Johanna Kubosch
- Department of Orthopedics and Trauma Surgery, Medical Center, Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany.
| | - Oliver Gottschalk
- Department of General, Trauma and Reconstructive Surgery, University Hospital, LMU, Munich, Germany; Schön Klinik München Harlaching - FIFA Medical Centre, Harlachinger Straße 51, 81547 München, Germany.
| | - Udo Wittmann
- Consult AG, Tramstrasse 10, 8050 Zürich, Switzerland.
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Hoff P, Walther M, Wesselmann H, Weinerth J, Feist E, Ohrndorf S. [Successful treatment of adult Still's disease with tofacitinib in a HIV-2 positive female patient]. Z Rheumatol 2020; 79:1046-1049. [PMID: 32816071 DOI: 10.1007/s00393-020-00853-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A 46-year-old female patient with a known HIV-2-infection suffered from adult onset Still's disease, which was initially complicated by a macrophage activation syndrome (MAS). The required glucocorticoid treatment induced a psychosis and the patient developed an aversion to glucocorticoids. After failure of treatment with anakinra, an alternative option with the JAK-inhibitor tofacitinib was introduced because of the short half-life and to reduce glucocorticoid exposure. A switch to tofacitinib was only successful after an overlapping treatment with anakinra and tofacitinib for 3 weeks. The patient is currently being treated with monotherapy with tofacitinib as well as NSAID on demand, is in stable remission and can continue working as normal.
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Affiliation(s)
- P Hoff
- MVZ Endokrinologikum Berlin am Gendarmenmarkt, Friedrichstr. 76, 10117, Berlin, Deutschland. .,Medizinische Klinik mit Schwerpunkt Rheumatologie und Klinische Immunologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin, Deutschland.
| | - M Walther
- MVZ Endokrinologikum Berlin am Gendarmenmarkt, Friedrichstr. 76, 10117, Berlin, Deutschland
| | - H Wesselmann
- HIV-Ambulanz-Praxis, Ambulantes Gesundheitszentrum der Charité am Campus Virchow, Berlin, Deutschland
| | - J Weinerth
- MVZ Endokrinologikum Berlin am Gendarmenmarkt, Friedrichstr. 76, 10117, Berlin, Deutschland
| | - E Feist
- Helios Fachklinik Vogelsang-Gommern, Vogelsang-Gommern, Deutschland
| | - S Ohrndorf
- Medizinische Klinik mit Schwerpunkt Rheumatologie und Klinische Immunologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin, Deutschland
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Hörterer H, Baumbach SF, Oppelt S, Böcker W, Harrasser N, Walther M, Polzer H. Complications Associated With Midline Incision for Insertional Achilles Tendinopathy. Foot Ankle Int 2020; 41:1502-1509. [PMID: 32819163 DOI: 10.1177/1071100720943836] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The midline-incision trans-achillary approach (MITA) is frequently used for addressing all pathologies of insertional Achilles tendinopathy (IAT). The aim of this study was to assess the complication rate and possible influencing factors following a MITA for IAT treatment. METHODS Presented is a retrospective cohort study with current follow-up. Patients treated surgically by a MITA, addressing all pathologies of IAT, between January 2010 and October 2016 at a single reference center with at least 12 months of follow-up were included. General demographics (age, sex, and body mass index), medical history, surgical details (individual and sum of pathologies addressed), and duration of in-hospital stay were assessed. Patient satisfaction, shoe conflict, current employment status, time to return to sports, and type of sports were recorded using a custom questionnaire. Standard statistics, chi-square, and t tests were performed using SPSS. A total of 118 patients (follow-up, 63.4%) with a mean age (± SD) of 50 ± 12 years and a mean final follow-up time (± SD) of 4.2 ± 2.1 were included. RESULTS Fourteen percent of patients had a minor complication, the majority (75%) of which were surgical site infections. Forty-one percent were limited in their shoe selection, and 32% reported a shoe conflict. Seventy-eight percent were very satisfied, and 89% would recommend the surgery. Neither the individual surgical procedures, their sum, nor any other parameter showed a significant influence on the complication rate. The only factor negatively affecting patient satisfaction was a shoe conflict (P < .001). CONCLUSION The MITA for IAT treatment showed a moderate minor complication rate with good midterm patient satisfaction. However, the approach might predispose patients to shoe conflict, which negatively influences their satisfaction. LEVEL OF EVIDENCE Level IV, retrospective cohort study.
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Affiliation(s)
- Hubert Hörterer
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany.,Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Sebastian Felix Baumbach
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Sonja Oppelt
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Wolfgang Böcker
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
| | - Norbert Harrasser
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
| | - Markus Walther
- Center for Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany.,Department of Orthopedics and Orthopedic Surgery, Julius Maximilian University, Würzburg, Germany
| | - Hans Polzer
- Department of General, Trauma, and Reconstructive Surgery, University Hospital Munich, Munich, Germany
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Chomej P, Klos K, Bauer S, Walther M. Lateralising DMMO (MIS) for simultaneous correction of a pes adductus during surgical treatment of a hallux valgus. Foot (Edinb) 2020; 45:101722. [PMID: 33181398 DOI: 10.1016/j.foot.2020.101722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/09/2020] [Accepted: 07/16/2020] [Indexed: 02/04/2023]
Abstract
The surgical correction of a hallux valgus deformity presenting with a pes adductus has long proven to be a difficult undertaking. The medial shift of the metatarsal bones limits the scope for surgical correction and leads to inherently high reoccurrence rates. Current invasive treatments often give rise to profound soft tissue trauma and prolonged swelling, while requiring strict relief from weight-bearing in the affected foot. In this paper, it is aimed to introduce an easy and useful modification of the Distal Metatarsal Minimal-invasive Osteotomy (DMMO) to perform the effective, simultaneous correction of a pes adductus during surgical treatment of a hallux valgus. We followed-up 143 patients with a hallux valgus and simultaneous pes adductus deformity who underwent one of three additional interventions contemporaneous to the lateralising DMMO: The assessment of radiological and clinical outcomes after a follow-up period of 12-25 months showed a sustained and effective correction of the pes adductus with a well-aligned hallux. The surgery was characterised by a low incidence of postoperative complications and high patient satisfaction while allowing for pain-adapted, post-operative weight-bearing. Level of Clinical Evidence: 3.
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Affiliation(s)
- Pawel Chomej
- Department of Orthopaedic and Trauma Surgery - Sportklinik, St. Elisabeth-Hospital Leipzig, Leipzig, Germany.
| | - Kajetan Klos
- Department of Foot and Ankle Surgery, Catholic Hospital Mainz, Mainz, Germany
| | - Stefan Bauer
- Department of Orthopaedic and Trauma Surgery - Sportklinik, St. Elisabeth-Hospital Leipzig, Leipzig, Germany
| | - Markus Walther
- Department of Foot and Ankle Surgery, Schön Klinik München Harlaching - FIFA Medical Centre of Excellence, Munich, Germany
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Walther M, Hörterer H, Harrasser N, Röser A, Gottschalk O. Minimal-invasive Komponenten der Therapie der Tibialis-posterior-Insuffizienz des Erwachsenen. Orthopäde 2020; 49:962-967. [DOI: 10.1007/s00132-020-03990-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Markmann V, Dartsch M, Valerio J, Frenzel L, Lokteva I, Walther M, Westermeier F, Grübel G, Lehmkühler F. Shear-induced ordering in liquid microjets seen by x-ray cross correlation analysis. Struct Dyn 2020; 7:054901. [PMID: 33094129 PMCID: PMC7568674 DOI: 10.1063/4.0000038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/01/2020] [Indexed: 05/13/2023]
Abstract
We applied shear to a silica nanoparticle dispersion in a microfluidic jet device and observed direction-dependent structure along and across the flow direction. The asymmetries of the diffraction patterns were evaluated by x-ray cross correlation analysis. For different Rayleigh nozzle sizes and shapes, we measured the decay of the shear-induced ordering after the cessation of the shear. At large tube sizes and small shear rates, the characteristic times of the decay become longer, but Péclet-weighted times do not scale linearly with Péclet numbers. By modeling particle distributions with the corresponding diffraction patterns and comparing measured shape asymmetry to simulations, we determined the variation of volume fraction over the azimuthal angle for the maximum ordered state in the jet.
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Affiliation(s)
- V. Markmann
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
- Author to whom correspondence should be addressed:
| | | | | | | | | | - M. Walther
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - F. Westermeier
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
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Mehlhorn AT, Ugland KI, Hörterer H, Gottschalk O, Südkamp N, Walther M. A high-profile thread with grit-blasted and acid-etched surface reduces loosening of medial column fusion bolt in instable Charcot foot. Foot Ankle Surg 2020; 26:637-643. [PMID: 31521519 DOI: 10.1016/j.fas.2019.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/30/2019] [Accepted: 08/08/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Intramedullary fusion bolts (FB) were introduced to stabilize the medial column of the instable Charcot foot (ICF), but complications as bolt loosening or breakage are frequent. We compared the use of a standard FB and a high-profile threaded FB with a grit-blasted surface. We hypothesized that implant related complications occurred less often and osseous consolidation of fusion sites was more distinctive using the latter type of FB. METHODS Consecutive patients suffering from an ICF were stabilized with a high-profile threaded and surface-modified FB (HTFB) (n=20) or with a standard FB (n=20) which was placed into the first ray. Additional bolts and dorsal low-profile plates were applied in every patient. In a retrospective assessment osseous consolidation of the fusion sites was analyzed at 3 month and quantified by CT scan. At 3 and 12 month longitudinal foot arch collapse and rate of bolt loosening were assessed. RESULTS Compared to the control group, the HTFB group reached significant higher consolidation after 3 month. No dislocation and a single bolt breakage was observed in the HTFB group after the fourth month, while the control group included 3 patients with bolt dislocation at 3±1 month and 5 patients with bolt breakage at 6±1.8 month. Compared to preoperative values, the improvement of Meary's angle after one-year was significant higher in the HTFB group (23.4°±14) than in controls (11.7°±13). CONCLUSIONS Modification of bolt design improves the stability of the medial column: A higher rate of osseous consolidation of the medial column leads to lower rate of bolt dislocation/breakage and finally to permanently erected longitudinal foot arch. Initially disappointing results following medial column stabilization with fusion bolts can be rejected by modifications of bolt design and its technical application.
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Affiliation(s)
- Alexander T Mehlhorn
- Center of Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany; Department of Orthopedics and Trauma Surgery, Albert-Ludwigs University of Freiburg, Medical Center, Freiburg, Germany.
| | - Karl I Ugland
- Department of Biosciences, University of Oslo, PB 1066 Blindern, 0316 Oslo, Norway
| | - Hubert Hörterer
- Center of Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
| | - Oliver Gottschalk
- Center of Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
| | - Norbert Südkamp
- Department of Orthopedics and Trauma Surgery, Albert-Ludwigs University of Freiburg, Medical Center, Freiburg, Germany
| | - Markus Walther
- Center of Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich, Germany
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Walther M, Dummer R, Imhof L. Light-based therapies and scar sarcoidosis. J Eur Acad Dermatol Venereol 2020; 34:e805-e807. [PMID: 32455483 DOI: 10.1111/jdv.16667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 11/26/2022]
Affiliation(s)
- M Walther
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University Zurich, Zurich, Switzerland
| | - R Dummer
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University Zurich, Zurich, Switzerland
| | - L Imhof
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University Zurich, Zurich, Switzerland
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Abstract
BACKGROUND The chronic-mechanical plantar ulcer in diabetic-neuropathic foot syndrome is the starting point for severe infections of the foot and amputations. Frequent predilection sites are the metatarsal heads (MTH); in the context of neuropathy increased plantar peak pressure occurs and leads to an ulcer. GOAL In this paper, we will examine whether minimally invasive pressure-reducing osteotomies, such as distal, minimally invasive metatarsal osteotomy (DMMO), can lead to the healing of metatarsal ulcers. Furthermore, the frequency of postoperative complications will be analyzed. METHOD In a prospective study, n = 26 consecutive patients with plantar grade IA, IIA, and IIIA ulcers according to Wagner/Armstrong were included in the study under MTH 2, 3, 4 and 5 and with an unsuccessful conservative therapy >6 months. All patients received a DMMO of MT 2, 3, and 4, unless the ulcer was under MTH 5, then isolated DMMO MT 5 was performed. Clinical radiological check-ups took place over a follow-up interval of 26 ± 18 months (8-43 months). RESULTS In all patients, the plantar ulcera healed after 5 ± 1 week, the recurrence rate was 8% and 3 patients had a transfer ulcer. Complications such as infection, pseudarthrosis or neuroosteoarthropathy did not occur. CONCLUSION DMMO is an effective method for the treatment of recalcitrant ulcers under the metatarsal heads. The rate of a long-term cure is high; the complication rate is low; in ulcers under MTH 5, the DMMO should possibly be extended to the other metatarsal heads to reduce the risk of a transfer ulcer.
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Affiliation(s)
- Alexander T Mehlhorn
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, Harlachingerstraße 51, 81547, München, Deutschland.
- Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland.
| | - Norbert Harrasser
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, Harlachingerstraße 51, 81547, München, Deutschland
| | - Markus Walther
- Zentrum für Fuß- und Sprunggelenkschirurgie, Schönklinik München-Harlaching, Harlachingerstraße 51, 81547, München, Deutschland
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Harrasser N, Gebhardt C, Südkamp NP, Schmal H, Walther M, Mehlhorn AT. Physical Performance and Quality of Life after Ankle Fusion. Z Orthop Unfall 2019; 158:611-617. [PMID: 31820431 DOI: 10.1055/a-1014-3667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Ankle fusion is still considered as an established therapy for end-stage ankle osteoarthritis. To determine exact description of postoperative functioning, it is necessary to consult a variety of functional scores and quality of life questionnaires. METHODS/PATIENTS 34 patients with 34 ankle fusions were investigated on average 5.9 years postoperatively by functional tests and health-related quality of life questionnaires (AOFAS hindfoot score [AOFAS: American Orthopaedic Foot/Ankle Society], Foot Function Index [FFI], Lower Extremity Functional Scale [LEFS], Lower Extremity Activity Scale [LEAS], Visual Analogue Scale Foot/Ankle Surgery [VAS FA], Short Form 36 [SF-36], EuroQol 5D [EQ-5D]). RESULTS After ankle fusion: the majority of cases gain pain reduction, but residual symptoms may persist; the maximum walking distance (subjectively more than objectively) will be extended; rarely walking without any aids can be achieved; in most cases, the gait pattern is only slightly changed; the re-entry into working life is often possible; climbing stairs without any restrictions is not always possible; the psychological situation will be equalized with that of healthy people. CONCLUSION The results of the study confirm the success rates of ankle fusions in the majority of cases. Well defined limitations and residual symptoms can be named on the basis of the available data.
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Affiliation(s)
- Norbert Harrasser
- Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich.,Klinik und Poliklinik für Orthopädie/Sportorthopädie, Klinikum rechts der Isar, Munich
| | - Christine Gebhardt
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Freiburg
| | - Norbert P Südkamp
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Freiburg
| | - Hagen Schmal
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Freiburg.,Department of Orthopedics and Traumatology, Odense University Hospital, Odense, Dänemark
| | - Markus Walther
- Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich
| | - Alexander Thomas Mehlhorn
- Foot and Ankle Surgery, Schön Klinik München Harlaching, Munich.,Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Freiburg
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Egmond HPV, Mouriño A, Burdaspal PA, Boenke A, Alvito P, Arevalo F, Botana-López LM, Bustos J, Dietrich R, Donald M, Franco Soler JM, Gago Martinez A, Hald B, Helle N, Hummert C, Ledoux M, Legarda T, Luckas B, Mesego A, Paulsch WE, Rodriguez-Vieytes M, Salgado C, Stockemer J, Usleber E, van den Top HJ, Walther L, Walther M, Winkler F. Development of Reference Materials for Paralytic Shellfish Poisoning Toxins. J AOAC Int 2019. [DOI: 10.1093/jaoac/84.5.1668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A project was undertaken to develop mussel reference materials that were certified for their mass fractions of saxitoxin and decarbamoyl-saxitoxin. Fifteen laboratories from various European countries participated. Three of these had major responsibility for substantial parts of the work and overall coordination of the project. The project involved 4 main activities: (1) procurement and characterization of calibrants; (2) improvement of analytical methodology; (3) preparation of reference materials, including homogeneity and stability studies; (4) 2 interlaboratory studies and a certification exercise. The joint activities resulted in 3 homogeneous and stable reference materials: 2 lyophilized mussel materials with and without naturally incurred paralytic shellfish poisoning (PSP) toxins, and a saxitoxin enrichment solution. The reference materials were certified with respect to their saxitoxin and decarbamoyl-saxitoxin content. The lyophilized mussel material with PSP toxins (CRM 542) contained <0.07 mg saxitoxin·2HCl/kg and 1.59 ± 0.20 mg decarbamoyl-saxitoxin·2HCl/kg. The lyophilized mussel material without PSP toxins (CRM 543) contained <0.07 mg saxitoxin·2HCl/kg and <0.04 mg decarbamoyl-saxitoxin·2HCl/kg. The certified value of the saxitoxin mass fraction in the saxitoxin enrichment solution (CRM 663) was 9.8 ± 1.2 μg/g.
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Affiliation(s)
- Hans P van Egmond
- National Institute of Public Health and the Environment, Laboratory for Residue Analysis, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Antonio Mouriño
- University of Santiago de Compostela, Departamento de Química Orgánica y Sección de Alcaloides del CSIC, Santiago de Compostela, Spain
| | - Pedro A Burdaspal
- Centro Nacional de Alimentacion (Instituto de Salud Carlos III), 28220 Majadahonda, Madrid, Spain
| | - Achim Boenke
- European Commission, Standards, Measurements and Testing Programme (SMT), 200 Rue de la Loi, Brussels, Belgium
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Müller AM, Toepfer A, Harrasser N, Haller B, Walther M, von Eisenhart-Rothe R, Gemperlein K, Bergmann K, Bradaric C, Laugwitz KL, Ibrahim T, Dirschinger RJ. Significant prevalence of peripheral artery disease in patients with disturbed wound healing following elective foot and ankle surgery: Results from the ABI-PRIORY (ABI as a PRedictor of Impaired wound healing after ORthopedic surgerY) trial. Vasc Med 2019; 25:118-123. [PMID: 32366205 DOI: 10.1177/1358863x19883945] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Disturbed wound healing (DWH) following elective foot and ankle surgery is associated with a number of known risk factors. The purpose of this study was to determine if peripheral artery disease (PAD) is a potential risk factor that contributes to an increase in postoperative DWH. In a case-control study, we analyzed all patients undergoing elective foot and ankle surgery between January 1, 2014 and December 31, 2017 at two institutions and identified 51 patients with postoperative DWH. After matching with 51 control patients without DWH, all 102 patients were evaluated for PAD. The prevalence of PAD was significantly higher in the DWH group compared to the control group (41.2% vs 19.6%, p < 0.01). This difference was even more distinctive for patients with any abnormal ankle-brachial index (ABI) (51.0% vs 19.6%, p < 0.001). After adjustment for diabetes, hypertension, hypercholesterolemia, and smoking, any abnormal ABI or a history of PAD remained an independent risk factor for DWH (odds ratio 3.28; 95% CI 1.24-8.71). In this dual-center study, postoperative DWH was associated with significantly higher rates of PAD. These findings suggest that preoperative evaluation for PAD could be a helpful tool to identify patients at high risk for postoperative wound complications undergoing foot and ankle surgery. This trial is registered with drks.de, number DRKS00012580.
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Affiliation(s)
- Arne M Müller
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Andreas Toepfer
- Fachzentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, Munich, Germany
| | - Norbert Harrasser
- Klinik und Poliklinik für Orthopädie und Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Bernhard Haller
- Institut für Medizinische Statistik und Epidemiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Markus Walther
- Fachzentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, Munich, Germany
| | - Rüdiger von Eisenhart-Rothe
- Klinik und Poliklinik für Orthopädie und Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Karla Gemperlein
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Katharina Bergmann
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Christian Bradaric
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Karl-Ludwig Laugwitz
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Tareq Ibrahim
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Ralf J Dirschinger
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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48
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Hamel J, Hörterer H, Gottschalk O, Harrasser N, Walther M. [Hindfoot-centred X-ray technique for the evaluation of cavovarus deformity : A proposal for the optimization of radiologic delineation]. Orthopade 2019; 49:531-537. [PMID: 31486913 DOI: 10.1007/s00132-019-03800-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In surgical correction of cavovarus deformity bony hindfoot procedures are required in most cases. For treatment planning X‑rays in two or more planes are usually used. In conventional X‑ray-techniques the hindfoot and ankle joint are presented in a more or less outward rotated position. Moreover, the peritalar complex is not delineated in the most corrected position. Therefore, the frequently used talus-metatarsal-I-angle (Meary angle) cannot be measured correctly. By application of the Coleman block test and additional adjustment of the malrotation in the lateral view, the peritalar complex and ankle joint can be evaluated in the corrected and "hindfoot-centred" position. Also, the frequently seen anterior ankle impingement can be observed precisely. Planning of osteotomies or corrective peritalar fusions is supported thereby. Some treatment examples are presented.
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Affiliation(s)
- J Hamel
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, München, Deutschland.
| | - H Hörterer
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, München, Deutschland.,Klinik für Allgemeine‑, Unfall- und Wiederherstellungschirurigie, Klinikum der Universität München, LMU München, München, Deutschland
| | - O Gottschalk
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, München, Deutschland.,Klinik für Allgemeine‑, Unfall- und Wiederherstellungschirurigie, Klinikum der Universität München, LMU München, München, Deutschland
| | - N Harrasser
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, München, Deutschland.,Klinik für Orthopädie und Sportorthopädie, Klinikum rechts der Isar, TU München, München, Deutschland
| | - M Walther
- Zentrum für Fuß- und Sprunggelenkchirurgie, Schön Klinik München Harlaching, München, Deutschland
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Leuthard D, Walther M, Galliker N, Bosshard PP. Epidemiological and clinical aspects of patients with Neoscytalidium spp. dermatomycoses in Switzerland. J Eur Acad Dermatol Venereol 2019; 34:e4-e5. [PMID: 31374133 DOI: 10.1111/jdv.15836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- D Leuthard
- Department of Dermatology, Faculty of Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - M Walther
- Department of Dermatology, Faculty of Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - N Galliker
- Department of Dermatology, Faculty of Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - P P Bosshard
- Department of Dermatology, Faculty of Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
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Walther M, Wodtke R, Bergmann R, Zarschler K, Sihver W, Pietzsch HJ. “Click to ligand/conjugate” for facile labeling with Al[18F]F, 68Ga, 111In or 64Cu. Nucl Med Biol 2019. [DOI: 10.1016/s0969-8051(19)30287-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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