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12. Preexisting and treated concomitant ankle instability does not compromise patient-reported outcomes of solitary osteochondral lesions of the talus treated with matrix-induced bone marrow stimulation in the first postoperative year: data from the German Cartilage Registry (KnorpelRegister DGOU)

Author

Ahrend, Marc-Daniel, Aurich, Matthias, Becher, Christoph, Ateschrang, Atesch, Schröter, Steffen, Walther, Markus, Gottschalk, Oliver, Plaass, Christian, Ettinger, Sarah, Zinser, Wolfgang, and Körner, Daniel

Published
2022
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15. Higher conversion rate to knee arthroplasty in female patients following medial open‐wedge high tibial osteotomy.

Author

Ahrend, Marc‐Daniel, Petzold, Daniel, Schuster, Philipp, Herbst, Moritz, Ihle, Christoph, Mayer, Philipp, and Schröter, Steffen

Subjects
SEX factors in disease, TOTAL knee replacement, LOG-rank test, KNEE osteoarthritis, SURVIVAL rate
Abstract

Purpose: Most studies about medial open‐wedge high tibial osteotomy (HTO) reported outcomes without focusing on gender differences. Therefore, the study compared the long‐term survival rate and postoperative subjective knee function after HTO in female versus male patients with symptomatic medial compartment knee osteoarthritis. Methods: The data of three cohorts with long‐term outcomes were analysed (n = 245; 32% females; age: 49 ± 7 years; Kellgren Lawrence Grade I 6.1%, II 32.7%, III 42.4%; IV 18.8%). The minimum follow‐up was at least 6 years or an earlier conversion to total knee arthroplasty (TKA). The gender‐specific survival rate after HTO was calculated after 5 and 10 years and compared using Kaplan–Meier analysis and the logrank test. Baseline characteristics and subjective knee function (International Knee Documentation Committee [IKDC]/Lysholm) were analysed between both genders. Results: Forty of 78 (51.3%) women and 41 of 167 men (24.5%) underwent TKA. HTO survival in females was significantly lower (p = 0.0010). The 5‐ and 10‐year survival rates were 85.9% and 62.6% for females and 93.4% and 77.7% for males. In females and males, from preoperative to the last follow‐up, the IKDC (43 ± 15 to 58 ± 17; 47 ± 14 to 67 ± 18) and the Lysholm (42 ± 18 to 72 ± 18; 55 ± 22 to 77 ± 23) improved significantly (all p < 0.0001). Females had significantly lower preoperative and postoperative IKDC (p = 0.0438; p = 0.0035) and Lysholm scores (p = 0.0002; p = 0.0323). But the absolute improvements of the IKDC and Lysholm were not significantly different between genders. Conclusions: Females had higher conversion rates to TKA and lower knee function at the last follow‐up. However, preoperative knee function was lower in females and the absolute improvement following HTO was similar for both genders. In general, females benefit from HTO to treat medial knee arthritis, and TKA could be postponed for half of female patients for more than 10 years. However, surgeons must be aware of the described inferior outcomes in females for realistic patient expectation management. Level of Evidence: Level II. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Surgical strategy and complication management of osteotomy around the painful degenerative varus knee: ESSKA Formal Consensus Part II

Author

Ollivier, Matthieu, primary, Claes, Steven, additional, Mabrouk, Ahmed, additional, Elson, David, additional, Espejo‐Reina, Alejandro, additional, Predescu, Vlad, additional, Schröter, Steffen, additional, Van heerwarden, Ronald, additional, Menetrey, Jacques, additional, Beaufils, Philippe, additional, Seil, Roman, additional, Beker, Roland, additional, Khakha, Raghbir, additional, and Dawson, Matthew, additional

Published
2024
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18. Osteotomy around the painful degenerative varus knee has broader indications than conventionally described but must follow a strict planning process: ESSKA Formal Consensus Part I

Author

Dawson, Matthew, primary, Elson, David, additional, Claes, Steven, additional, Predescu, Vlad, additional, Khakha, Raghbir, additional, Espejo‐Reina, Alejandro, additional, Schröter, Steffen, additional, van Heerwarden, Ronald, additional, Menetrey, Jacques, additional, Beaufils, Philippe, additional, Seil, Roman, additional, Beker, Roland, additional, Mabrouk, Ahmed, additional, and Ollivier, Matthieu, additional

Published
2024
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29. Large variation in use of patient-reported outcome measures: A survey of 188 foot and ankle surgeons

Author

Ramos, Acacio J.C., Ajis, Adam, Toom, Alar, Ortolani, Alessandro, Russo, Alessandro, Abdelwahab, Ali, Yazdani, Alireza, Mora, Allan David, Burg, Alon, Colino, Alvaro, Iouail, Ameur, Gaspar, Ana Rita, de Souza, André Luiz Rocha, Engvall, Andreas, Hsu, Andrew R., Primadhi, Andri, Millán, Angélica, Peters, Anil, Amin, Anish, Hoffmann, Antonin, Moreira, António José Correia, Marmotti, Antonio, Bertz, Ari, Barmare, Arshad, Eltabbaa, Ayman, Rudge, Ben, Schmidt, Ben, Nery, Caio, Cortes, Carlos Roberto, Lins, Carolina, Banuelos, Cesar Andarcia, Kord, Chegini, van Bergen, Christiaan J.A., Stukenborg-Colsman, Christina, Lu, Christopher, Marquis, Christopher, Baumfeld, Daniel, Haverkamp, Daniel, Mendes, Daniel, Townshend, Dave, Kim, David, Park, Derek H., Mahadevan, Devendra, Verbeek, Diederik O., Hatziemmanuil, Dimitrios, Nikolopoulos, Dimitrios, Tsoukas, Dimitrios, Avila, Eduardo, Samaila, Elena, Baca, Emre, Verge, Enrique José Gargallo, Pasion, Enrique Leonardo C., Bilgic, Erkal, Arroyo, Ernesto, Pereira, Ernesto, Yeap, Ewe Juan, Palmanovich, Ezequiel, Cortese, Fabrizio, Krappel, Ferdinand, Martinez, Fernando, Pena, Fernando, Lijoi, Francesco, Daguerre, Gaston, Sulkers, George, Pánics, Gergely, Naderi, Gholamreza, Carcuro, Giovanni, Martinho, Gonçalo, Herrera, Gonzalo Manuel Perez, Hajduk, Grzegorz, Carpeggiani, Guilherme, Nandhara, Gurbinder, Bakhtamyan, Gurgen, Friedman, Guy, Bulstra, Gythe, Kurup, Harish, Masaragian, Héctor, Liszka, Henryk, Shalaby, Hisham, Benea, Horea, Bissell, Iain, Yoshimura, Ichiro, Frangez, Igor, Spanos, Ioannis, Bojanic, Ivan, Medenica, Ivica, Abdeloihab, Jaafar, Fay, Jakob, Davenport, James, Mcwilliam, James, Walsh, James, Seybold, Jeffrey, Carmichael, Jim, Vide, Joao, Doornberg, Job N., Batista, Jorge Pablo, Vos, Joris de, Lansdaal, Joris R., de Arimathéa Brandão, José, Torrent, Josep, Devalia, Kailash, Kristen, Karl-Heinz, Jain, Kowshik, Pintus, Laura, van der Plaat, Laurens W., Laver, Lior, Verde, Luca La, Keiserman, Luciano, Gomez-Carlin, Luis, Carro, Luis Perez, Álvarez, M.C.Castro, Golovakha, Maksym, Mallick, Manabendra Nath Basu, Sousa, Manuel, Germano, Margherita, Schulz, Martin, e Dinato, Mauro Cesar Mattos, Van den Bogaert, Max, Bus, Michaël, van den Bekerom, Michel P.J., Filho, Miguel Viana Pereira, Aulamo, Mikko, Orduña-Moncusí, Modest, Ebrahimzadeh, Mohammad H., Hossein, Mohammad, Kumar, Mohan, Júnior, Nelson Pelozo Gomes, Moreno, Nestor, Graveleau, Nicolas, Martinelli, Nicolò, Koukoulias, Nikolaos, Filipov, Nikolay, Dreiangel, Niv, Ferreira, Nuno, Aiyenuro, Olusegun, Bilge, Onur, Castro-Aragon, Oscar, Ceccarini, Paolo, Sicchiero, Paolo, de Leeuw, Peter A.J., Hemmingsson, Peter, Spennacchio, Pietro, Zbikowski, Piotr, Kida, Qerim, Vohra, Rajeev, Schuh, Reinhard, Thomas, Rhys, Issaka, Ricardo, Freihaut, Richard, Walter, Richard, Michele, Risi, Zambelli, Roberto, Maxwell, Rod, Gerards, Rogier M., Hage, Samer El, Adams, Samuel, Kapoor, Sandeep, Catalan, Sandra, Becirbegovc, Semin, Al-Nammari, Shafic, Verfaillie, Stefaan, Schröter, Steffen, Park, Sung Ki, Chandrashekar, Suresh, Yli-Kyyny, Tero, Guitton, Thierry G., Barwick, Thomas, Lakkos, Thomas, Paulick, Thomas, Roukis, Thomas S., Bajenescu, Titi Marian, Low, Tze-Choong, Astegiano, Valeria Lopez, Kecojevic, Vaso, Parashar, Vinay, Kumar, Vish, Upadhyay, Vishal, Pasters, Vitalijs, de Miranda, Vitor Almeida Ribeiro, Stevanovic, Vladan, Kimtys, Vytautas, Gang, Wu, Postnov, Yuri, Zwiers, R., Weel, H., Mallee, W.H., Kerkhoffs, G.M.M.J., and van Dijk, C.N.

Published
2018
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35. Tibial tuberosity‐trochlear groove distance is significantly decreased by medial closing wedge distal femoral osteotomy.

Author

Watrinet, Julius, Joergens, Maximilian, Blum, Philipp, Ehmann, Yannick, Augat, Peter, Stuby, Fabian, Schröter, Steffen, Harrer, Joerg, and Fürmetz, Julian

Subjects
OSTEOTOMY, MATHEMATICAL formulas, WEDGES, PATELLA, TORSION
Abstract

Purpose: While medial closing wedge distal femoral osteotomy (MCWDFO) has been used to address patella instability combined with valgus malalignment, its impact on patellofemoral parameters remains uncharted. Hence, this study seeks to establish a three‐dimensional (3D) planning of MCWDFO and measure its effect on the tibial tubercle ‐ trochlear groove distance (TTTG) through simulation and calculation. Methods: MCWDFO with a stepwise increment of one‐degree varisation (1°–15°) was performed on 3D surface models of 14 lower extremities with valgus malalignment and 24 lower extremities with neutral alignment of the lower limb, resulting in a total of 608 simulations. Anatomic landmarks were employed to measure hip‐knee‐ankle angle (HKA), TTTG, and femoral torsion for each simulation. A mathematical formula was adopted to calculate TTTG changes following MCWDFO, and subsequently the mean simulated and calculated TTTG values were compared. Following a standardised protocol, MCWDFO was performed without rotational changes. Results: MCWDFO exhibited an almost linear reduction in TTTG, at a rate of approximately −1.05 ± 0.13 mm per 1° of varisation, demonstrating a strong negative correlation (R = −0.83; p < 0.001). Limb alignment did not exert an influence on TTTG change; however, it correlated with tibial plateau width. The mean difference between the simulated and calculated TTTG values amounted to 0.03 ± 0.03 mm per 1° varisation (p < 0.001). Conclusion: The TTTG distance is linearly reduced by 1.05 mm for every 1° of varisation within the varus correction range of 0°–15° during MCWDFO. Patients with combined valgus and patellar instability may benefit from MCWDFO due to frequently pathological TTTG. Level of Evidence: Level III, descriptive laboratory study. [ABSTRACT FROM AUTHOR]

Published
2024
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38. Fallbericht zur Entstehung einer medialen Gonarthrose nach Innenmeniskusläsion und erfolgter Teilresektion

Author

Finger, Felix, Ahrend, Marc-Daniel, Ihle, Christoph, Histing, Tina, and Schröter, Steffen

Abstract

Meniskusverletzungen führen zur Veränderung der Belastungsverteilung im Kniegelenk. Das Risiko, eine Gonarthrose zu entwickeln, steigt mit Zunahme der resezierten Meniskusfläche. Der Fallbericht zeigt, basierend auf 4 MRT-Untersuchungen, die über einen Zeitraum von 8 Jahren stattfanden, die fortschreitende Knorpeldegeneration nach traumatischer Innenmeniskusläsion und resultierender Teilresektion eines zum Unfallzeitpunkt 46-jährigen Patienten. Angeborene oder unfallunabhängige Risikofaktoren wie eine varische Beinachse müssen bei einer möglichen Begutachtung Berücksichtigung finden.

Published
2024
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41. Wiederherstellung der Arbeitsfähigkeit und einer zur Normalbevölkerung vergleichbaren subjektiven Lebensqualität nach operativ erfolgter Double-Level-Osteotomie (DLO) bei Varusgonarthrose

Author

Herbst, Moritz, Gruhn, Julia, Ihle, Christoph, Histing, Tina, Schröter, Steffen, and Ahrend, Marc-Daniel

Subjects
Medicine and health, Arbeitsfähigkeit, DLO, Osteotomie, Gonarthorse, Lebensqualität
Abstract

Fragestellung: Die Double-Level-Osteotomie (DLO) ist eine gelenkslinienerhaltende Technik zur Behandlung von Varusgonathrose. Ziel dieser Studie war es, die subjektive Lebensqualität und die Arbeitsintensität vor der Operation und zum Zeitpunkt der Rückkehr an den Arbeitsplatz nach der [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2022
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42. Biological Reconstruction of Localized Full-Thickness Cartilage Defects of the Knee: A Systematic Review of Level 1 Studies with a Minimum Follow-Up of 5 Years

Author

Angele, Peter, Zellner, Johannes, Schröter, Steffen, Flechtenmacher, Johannes, Fritz, Jürgen, and Niemeyer, Philipp

Subjects
ddc:610, Biomedical Engineering, 610 Medizin, Immunology and Allergy, Physical Therapy, Sports Therapy and Rehabilitation, knee cartilage defect, autologous chondrocyte implantation, microfracture, osteochondral autograft transplantation, systematic review
Abstract

Objective The objective of this study was to evaluate the best available mid- to long-term evidence of surgical procedures for the treatment of localized full-thickness cartilage defects of the knee. Design Systematic review using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines of Level 1 randomized clinical trials (RCTs), meta-analyses of RCTs and systematic reviews with a minimum follow-up of 5 years. Data extracted included patient demographics, defect characteristics, clinical and radiological outcomes, as well as treatment failures. Results Six RCTs and 3 Level 1 systematic reviews were included. Two RCTs compared microfracture (MFx) to periosteum-covered autologous chondrocyte implantation (ACI-P), 1 to matrix-associated ACI (M-ACI) and 2 to osteochondral autograft transplantation (OAT). One study compared OAT to collagen membrane covered ACI (ACI-C). The 3 Level 1 systematic reviews/meta-analyses assessed the outcome of MFx, OAT, and various ACI methods in RCTs. OAT showed significantly better outcomes compared with MFx. In the 2 RCTs comparing ACI-P and MFx, no significant differences in clinical outcomes were seen, whereas significantly better outcomes were reported for M-ACI versus MFx in 1 study including patients with larger defects (5 cm2), and for ACI-C versus OAT in terms of Cincinnati Score. Higher failure rates were reported for MFx compared with OAT and for OAT compared with ACI-C, while no significant differences in failure rates were observed for ACI-P compared to MFx. Conclusion Restorative cartilage procedures (ACI-C or M-ACI and OAT) are associated with better long-term clinical outcomes including lower complication and failure rates when compared with reparative techniques (MFx). Among the restorative procedures, OAT seems to be inferior to ACI especially in larger defects after longer follow-up periods. Level of evidence: Level I: Systematic review of Level I studies

Published
2022

48. Osteochondrale Läsionen des Talus: Ein aktuelles Review.

Author

Ateschrang, Atesch and Schröter, Steffen

Subjects
*OSTEOCHONDRITIS, *SPRAINS, *ANKLE injuries, *WOUNDS & injuries, *ANKLEBONE, *DISEASE complications
Abstract

Osteochondral lesions of the talus are often caused by ankle sprains. There is still an ongoing discussion concerning the differentiation of osteochondritis dissecans who are thought to be the result of repetitive micro trauma or vascular disturbances. Surgical intervention is recommended for mobile osteochondral fragments. Surgical options should aim to restore the original fragment. Different surgical options are available whereas there is still no gold standard identifiable. [ABSTRACT FROM AUTHOR]

Published
2023
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