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10. Core set of unfavorable events of shoulder arthroplasty: an international Delphi consensus process

Author

Äärimaa, Ville, Alta, Tjarco D., Amaral, Marcus Vinicius, Armstrong, Alison, van Noort, Arthur, Bale, Steve, Beyth, Shaul, Bischof, Andreas, Bokor, Desmond J., Borroni, Mario, Brorson, Stig, Brownson, Peter, Buchmann, Stefan, Buess, Eduard, Cass, Benjamin, Kelly, Cormac, De Cupis, Vincenzo, Debeer, Philippe, van Deurzen, Derek F.P., Dillon, Mark T., Durchholz, Holger, Ekelund, Anders, Etzner, Mikael, Flury, Matthias, Frankle, Mark, Geoghegan, John, Georgousis, Harry, Gerber-Popp, Ariane, Gulyás, Károly, Henry, Patrick, Hertel, Ralph, Heuberer, Philipp, Holland, Philip, Holzer, Nicolas, Hoy, Greg, Imhoff, Andreas B., Johannsen, Hans Viggo, Kent, Matthew, Kohut, Georges, Lädermann, Alexandre, Lambert, Simon, Lanz, Ulrich, Lederman, Evan, Lehmann, Lars, Leuzinger, Jan, Lichtenberg, Sven, Livesey, Jonathan, Loew, Markus, Lorbach, Olaf, Lundgreen, Kirsten, Maier, Dirk, Martetschläger, Frank, Matis, Nicholas, Mehta, Saurabh Sagar, Meyer, Dominik, Millett, Peter J., Moroder, Philipp, Motta, Geraldo, Mueller, Andreas, Navarro, Ronald A., Nebelung, Wolfgang, Neumann, Jörg, Page, Richard, Paladini, Paolo, Patel, Vipul, Penning, Ludo, Petré, Dirk, Petriccioli, Dario, Huijsmans, Pol, Rangan, Amar, Rees, Jonny, Reinares, Felipe, Resch, Herbert, Romeo, Anthony A., Rosso, Claudio, Rotini, Roberto, Ruiz-Iban, Miguel A., Salomonsson, Björn, Sandow, Michael, Savoie, Felix H., Scheer, Johan, Scheibel, Markus, Schwyzer, Hans-Kaspar, Soza Rex, Jose Francisco, Sperling, John, Spormann, Christoph, Tauber, Mark, Thillemann, Theis, Throckmorton, Thomas, Peckham, Tim, Toro, Felipe, van der Pluijm, Marco, van der Zwaal, Peer, Visser, Cornelis, Wambacher, Markus, Weber, Stephen C., Williams, Gerald, and Audigé, Laurent

Published
2019
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12. Covariations between scapular shape and bone density in B‐glenoids: A statistical shape and density modeling‐approach.

Author

Daneshvarhashjin, Nazanin, Debeer, Philippe, Innocenti, Bernardo, Verhaegen, Filip, and Scheys, Lennart

Subjects
*BONE density, *TOTAL shoulder replacement, *BONE growth, *GLENOHUMERAL joint, *SHOULDER, *COMPUTED tomography, *STATISTICAL models
Abstract

B‐type glenoids are characterized by posterior humeral head migration and/or bony‐erosion‐induced glenoid retroversion. Patients with this type of osteoarthritic glenoids are known to be at increased risk of glenoid component loosening after anatomic total shoulder arthroplasty (aTSA). One of the main challenges in B glenoid surgical planning is to find a balance between correcting the bony shape and maintaining the quality of the bone support. This study aims to systematically quantify variabilities in terms of scapular morphology and bone mineral density in patients with B glenoids and to identify patterns of covariation between these two features. Using computed tomography scan images of 62 patients, three‐dimensional scapular surface models were constructed. Rigid and nonrigid surface registration of the scapular surfaces, followed by volumetric registration and material mapping, enabled us to develop statistical shape model (SSM) and statistical density model (SDM). Partial least square correlation (PLSC) was used to identify patterns of covariation. The developed SSM and SDM represented 85.9% and 56.6% of variabilities in terms of scapular morphology and bone density, respectively. PLSC identified four modes of covariation, explaining 66.0% of the correlation between these two variations. Covariation of posterior–inferior glenoid erosion with posterior sclerotic bone formation in association with reduction of bone density in the anterior and central part of the glenoid was detected as the primary mode of covariation. Identification of these asymmetrical distribution of bone density can inform us about possible reasons behind glenoid component loosening in B glenoids and surgical guidelines in terms of the compromise between bony shape correction and bone support quality. [ABSTRACT FROM AUTHOR]

Published
2024
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19. A rare Gollop-Wolfgang Syndrome linked to a mutation in Wnt11

Author

Odrzywolski, Adrian, primary, Tüysüz, Beyhan, additional, Debeer, Philippe, additional, Souche, Erika, additional, Voet, Arnout, additional, Dimitrov, Boyan Ivanov, additional, Krzesińska, Paulina, additional, Vermeesch, Joris Robert, additional, and Tylzanowski, Przemko, additional

Published
2023
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20. Covariations between scapular shape and bone density in B-glenoids: A statistical shape and density modeling-approach.

Author

Daneshvarhashjin, Nazanin, Debeer, Philippe, Innocenti, Bernardo, Verhaegen, Filip, Scheys, Lennart, Daneshvarhashjin, Nazanin, Debeer, Philippe, Innocenti, Bernardo, Verhaegen, Filip, and Scheys, Lennart

Abstract

B-type glenoids are characterized by posterior humeral head migration and/or bony-erosion-induced glenoid retroversion. Patients with this type of osteoarthritic glenoids are known to be at increased risk of glenoid component loosening after anatomic total shoulder arthroplasty (aTSA). One of the main challenges in B glenoid surgical planning is to find a balance between correcting the bony shape and maintaining the quality of the bone support. This study aims to systematically quantify variabilities in terms of scapular morphology and bone mineral density in patients with B glenoids and to identify patterns of covariation between these two features. Using computed tomography scan images of 62 patients, three-dimensional scapular surface models were constructed. Rigid and nonrigid surface registration of the scapular surfaces, followed by volumetric registration and material mapping, enabled us to develop statistical shape model (SSM) and statistical density model (SDM). Partial least square correlation (PLSC) was used to identify patterns of covariation. The developed SSM and SDM represented 85.9% and 56.6% of variabilities in terms of scapular morphology and bone density, respectively. PLSC identified four modes of covariation, explaining 66.0% of the correlation between these two variations. Covariation of posterior-inferior glenoid erosion with posterior sclerotic bone formation in association with reduction of bone density in the anterior and central part of the glenoid was detected as the primary mode of covariation. Identification of these asymmetrical distribution of bone density can inform us about possible reasons behind glenoid component loosening in B glenoids and surgical guidelines in terms of the compromise between bony shape correction and bone support quality., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2023

35. Quantitative statistical shape model‐based analysis of humeral head migration, Part 2: Shoulder osteoarthritis.

Author

Verhaegen, Filip, Meynen, Alexander, Pitocchi, Jonathan, Debeer, Philippe, and Scheys, Lennart

Subjects
SHOULDER osteoarthritis, HUMERUS, LOGISTIC regression analysis, REGRESSION analysis, STATISTICAL models
Abstract

We wanted to investigate the quantitative characteristics of humeral head migration (HHM) in shoulder osteoarthritis (OA) and their possible associations with scapular morphology. We quantified CT‐scan‐based‐HHM in 122 patients with a combination of automated 3D scapulohumeral migration (=HHM with respect to the scapula) and glenohumeral migration (=HHM with respect to the glenoid) measurements. We divided OA patients in Group 1 (without HHM), Group 2a (anterior HHM) and Group 2b (posterior HHM). We reconstructed and measured the prearthropathy scapular anatomy with a statistical shape model technique. HHM primarily occurs in the axial plane in shoulder OA. We found "not‐perfect" correlation between subluxation distance AP and scapulohumeral migration values (rs = 0.8, p < 0.001). Group 2b patients had a more expressed prearthropathy glenoid retroversion (13° vs. 7°, p < 0.001) and posterior glenoid translation (4 mm vs. 6 mm, p = 0.003) in comparison to Group 1. Binary logistic regression analysis indicated prearthropathy glenoid version as a significant predictor of HHM (χ² = 27, p < 0.001). Multivariate regression analysis showed that the pathologic version could explain 56% of subluxation distance‐AP variance and 75% of the scapulohumeral migration variance (all p < 0.001). Herewith, every degree increase in pathologic glenoid retroversion was associated with an increase of 1% subluxation distance‐AP, and scapulohumeral migration. The occurrence of posterior HHM is associated with prearthropathy glenoid retroversion and more posterior glenoid translation. The reported regression values of HHM in the function of the pathologic glenoid version could form a basis toward a more patient‐specific correction of HHM. [ABSTRACT FROM AUTHOR]

Published
2023
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36. Determination of pre-arthropathy scapular anatomy with a statistical shape model – Part II: shoulder osteoarthritis

Author

Verhaegen, Filip, Meynen, Alexander, Debeer, Philippe, and Scheys, Lennart

Subjects
musculoskeletal diseases, musculoskeletal system
Abstract

Hypothesis and Background: Shoulder osteoarthritis can be divided in different glenoid types (A, B, C and D) and subtypes. The aim of this study was to investigate if there is an association between the pre-arthropathy scapular anatomy, shoulder osteoarthritis and different glenoid types and subtypes. Methods: Using principal component analysis, a statistical shape model (SSM) of the scapula was constructed from a dataset of 110 computed tomography (CT) scans. These subjects formed the control group. Next, CT scan images of 117 patients with osteoarthritis were classified according to the modified Walch classification. A complete three-dimensional (3D) scapular bone model was created for every patient, and using the SSM, a reconstruction of their pre-arthropathy scapular anatomy was performed. Automated 3D measurements were performed in both the patient and control group to obtain glenoid version and inclination, critical shoulder angle (CSA), posterior acromial slope (PAS), lateral acromion angle (LAA), scapular offset and the rotational alignment of the coracoacromial complex. These parameters were compared between controls, osteoarthritis patients, glenoid types and subtypes. Results: Mean version and inclination for the control group was 6° retroversion and 8° superior inclination (both SD ± 4°). The mean CSA, PAS, coracoid-posterior acromion angle, posterior acromion- scapular plane angle and fulcrum axis ratio was 30° (SD ± 4°), 64° (SD ± 8°), 116° (SD ± 9°), 55° (SD ± 7°) and 46% (SD ± 4%) respectively. Osteoarthritis patients had a significant lower CSA, posterior acromion-scapular plane angle, coracoid-posterior acromion angle and fulcrum axis ratio (27°, 50°, 111°, 44%, all P< 0.001). We found a significant difference between the control group and the respective glenoid types for the following parameters; mean CSA and coracoid-posterior acromion angle for A glenoids (27°, P= 0.001 and 111°, P=0.007), mean version, CSA, PAS, coracoid-posterior acromion angle, posterior acromion-scapular plane angle and fulcrum axis ratio for B glenoids (11°, 27°, 71°, 111°, 49°, 43%, all P< 0.001), mean version, CSA and posterior acromion-scapular plane angle for D glenoids (2°, P= 0.002, 26°, P= 0.003 and 48°, P= 0.007). Discussion: There seems to be an association between pre-arthropathy scapular anatomy and shoulder osteoarthritis. A small lateral extension and less posterior rotation of the acromion is associated with shoulder osteoarthritis and is present in almost all types and subtypes of glenoid morphology. Furthermore, B and D glenoids are associated with a more and, respectively less pronounced pre-arthropathy glenoid retroversion. Keywords: shoulder osteoarthritis, glenoid types, scapular anatomy, SSM, glenoid version, CSA, PAS Level of evidence: III ispartof: Journal Of Shoulder And Elbow Surgery vol:30 issue:9 pages:E558-E571 ispartof: location:United States status: Published online

Published
2021

42. Quantitative SSM‐based analysis of humeral head migration in rotator cuff tear arthropathy patients.

Author

Verhaegen, Filip, Meynen, Alexander, Plessers, Katrien, Scheys, Lennart, and Debeer, Philippe

Subjects
ROTATOR cuff, HUMERUS, JOINT diseases, ANATOMICAL planes, REVERSE total shoulder replacement
Abstract

Rotator cuff tear arthropathy (RCTA) is characterized by massive rotator cuff tearing combined with humeral head migration (HHM). The aim of this study is to investigate the quantitative characteristics of this migration and its association with glenoid erosions and prearthropathy scapular anatomy. We quantified HHM and prearthropathy scapular anatomy of 64 RCTA patients with statistical shape modeling‐based techniques. Glenoid erosion was classified according to Sirveaux et al. A cutoff value for confirming HHM was 5 mm based on a control group of 49 patients. Group 1 (RCTA without HHM) consisted of 21 patients, with a mean subluxation distance (SLD) of 3 mm. Group 2 (RCTA with HHM) consisted of 43 patients, with mean SLD of 9 mm, SLD in the anteroposterior plane of −1 mm (SD ± 4 mm), SLD in the superoinferior plane of 7 mm (SD ± 3 mm), and subluxation angle (SLA) of −5° (SD ± 40°). Analysis with Fisher's exact test showed a clear association between HHM and glenoid erosions (p = 0.002). Multivariate regression analysis of Group 2 showed that prearthropathy lateral acromial angle combined with critical shoulder angle (p = 0.004) explained 21% of the observed variability in SLD. The prearthropathy glenoid version explained 23% of the variability in SLA (p = 0.001). HHM in RCTA patients has a wide variation in both magnitude and direction leading to a distorted glenohumeral relationship in the coronal and axial plane. HHM is highly associated with the occurrence of glenoid erosions. There is a correlation between the prearthropathy scapular anatomy and the magnitude and direction of HHM. [ABSTRACT FROM AUTHOR]

Published
2022
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44. Automated quantification of glenoid bone defects using three-dimensional measurements

Author

Plessers, Katrien, Verhaegen, filip, Van Dijck, Christophe, Wirix-Speetjens, Roel, Debeer, Philippe, Jonkers, Ilse, and Vander Sloten, Jos

Subjects
musculoskeletal diseases, musculoskeletal system
Abstract

BACKGROUND: Assessment of glenoid bone defects is important to select the optimal glenoid component design during shoulder arthroplasty planning and implantation. This study presents a fully automated method to describe glenoid bone loss using 3-dimensional measurements without the need for a healthy contralateral reference scapula. METHODS: The native shape of the glenoid is reconstructed by fitting a statistical shape model (SSM) of the scapula. The total vault loss percentage, local vault loss percentages, defect depth, defect area percentage, and subluxation distance and region are computed based on a comparison of the reconstructed and eroded glenoids. The method is evaluated by comparing its results with a contralateral bone-based reconstruction approach in a data set of 34 scapula and humerus pairs with unilateral glenoid bone defects. RESULTS: The SSM-based defect measurements deviated from the contralateral bone-based measurements with mean absolute differences of 5.5% in the total vault loss percentage, 4.5% to 8.0% in the local vault loss percentages, 1.9 mm in the defect depth, 14.8% in the defect area percentage, and 1.6 mm in the subluxation distance. The SSM-based method was statistically equivalent to the contralateral bone-based method for all parameters except the defect area percentage. CONCLUSION: The presented method is able to automatically analyze glenoid bone defects using 3-dimensional measurements without the need for a healthy contralateral bone. ispartof: Journal Of Shoulder And Elbow Surgery vol:29 issue:5 pages:1050-1058 ispartof: location:United States status: Published online

Published
2020

45. Outcomes of reverse total shoulder arthroplasty with postoperative scapular fracture. A systematic review

Author

Loomans, Laura, Debeer, Philippe, and DIERICKX, Carl

Subjects
systematic review, scapular spine fracture, outcome, acromial fracture, Reverse total shoulder arthroplasty
Abstract

Postoperative scapular fractures are infrequent complications of reverse total shoulder arthroplasty (RTSA). The aim of this study is to discuss the functional outcome, clinical outcome and pain scores of these fractures and to analyze these outcome results based on fracture location. A systematic review in accordance with the PRISMA guidelines was conducted. Pubmed, EMBASE, Web of Science, Cochrane library and Ovid have been screened. A total of 78 RTSA in 12 articles were retained for qualitative analysis. The average minimum follow-up was 33.3 +/- 14.4 months (range 12-60 months) and the mean age was 74.4 +/- 5.6 years (range 63-85 years) with a mean female percentage of 90.9%. Overall, the mean DASH score was 39.8 +/- 9.4 points (range 29.5-48.0 points), ASES score 53.4 +/- 23.3 points (range 13.3-95.0 points), SST 3.2 +/- 2.2 points (range 0.0-5.1 points), the only OSS 28.0 points and Constant-Murley shoulder score 50.5 +/- 20.0 points (range 31.5-69.0). The mean anterior elevation was 91.5 degrees +/- 30.7 degrees (range 46.0 degrees-160.0 degrees), abduction 87.8 degrees +/- 21.8 degrees (range 55.0 degrees-125.0 degrees), external rotation 33.2 degrees +/- 22.2 degrees (range 9.0 degrees-85 degrees) and the only internal rotation was 60.0 degrees. The VAS score averaged of 3.8 +/- 2.8 points (range 0.8-9.0 points). A subgroup analysis of acromial and scapular spine fractures was performed. Acromial and scapular spine fractures have an undeniable effect on RTSA outcomes, however patients still improve compared to their preoperative state. We advise to consider acromial and scapular fractures as different problems, as prognosis is worse for more medial fractures. Loomans, L (corresponding author), Katholieke Univ Leuven, Fac Med, Med, O&N2,Herestr 49,Bus 400, B-3000 Leuven, Belgium. laura.loomans@student.kuleuven.be

Published
2020

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