{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:54:07Z","timestamp":1760241247162,"version":"build-2065373602"},"reference-count":44,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2019,12,20]],"date-time":"2019-12-20T00:00:00Z","timestamp":1576800000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Acetabular cup deformation may affect liner\/cup congruency, clearance and\/or osseointegration. It is unclear, whether deformation of the acetabular components occurs during load and to what extent. To evaluate this, revision multi-hole cups were implanted into six cadaver hemipelvises in two scenarios: without acetabular defect (ND); with a large acetabular defect (LD) that was treated with an augment. In the LD scenario, the cup and augment were attached to the bone and each other with screws. Subsequently, the implanted hemipelvises were loaded under a physiologic partial-weight-bearing modality. The deformation of the acetabular components was determined using a best-fit algorithm. The statistical evaluation involved repeated-measures ANOVA. The mean elastic distension of the ND cup was 292.9 \u00b5m (SD 12.2 \u00b5m); in the LD scenario, 43.7 \u00b5m (SD 11.2 \u00b5m); the mean maximal augment distension was 79.6 \u00b5m (SD 21.6 \u00b5m). A significant difference between the maximal distension of the cups in both scenarios was noted (F(1, 10) = 11.404; p = 0.007). No significant difference was noted between the compression of the ND and LD cups, nor between LD cups and LD augments. The LD cup displayed significantly lower elastic distension than the ND cup, most likely due to increased stiffness from the affixed augment and screw fixation.<\/jats:p>","DOI":"10.3390\/ma13010052","type":"journal-article","created":{"date-parts":[[2019,12,20]],"date-time":"2019-12-20T09:50:33Z","timestamp":1576835433000},"page":"52","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Titanium Acetabular Component Deformation under Cyclic Loading"],"prefix":"10.3390","volume":"13","author":[{"given":"Nicholas A.","family":"Beckmann","sequence":"first","affiliation":[{"name":"Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany"},{"name":"Department of Orthopaedic Surgery and Traumatology, Inselspital, Bern University Hospital, 3010 Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rudi G.","family":"Bitsch","sequence":"additional","affiliation":[{"name":"National Joint Center, ATOS Clinics, 69115 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Theresa","family":"Bormann","sequence":"additional","affiliation":[{"name":"Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Steffen","family":"Braun","sequence":"additional","affiliation":[{"name":"Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sebastian","family":"Jaeger","sequence":"additional","affiliation":[{"name":"Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,12,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1508","DOI":"10.1016\/S0140-6736(07)60457-7","article-title":"The operation of the century: Total hip replacement","volume":"370","author":"Learmonth","year":"2007","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"780","DOI":"10.2106\/00004623-200704000-00012","article-title":"Projections of primary and revision hip and knee arthroplasty in the United States from 2005 to 2030","volume":"89","author":"Kurtz","year":"2007","journal-title":"J. Bone Joint Surg. Am."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"504","DOI":"10.1302\/0301-620X.86B4.14799","article-title":"Failure rates for 4762 revision total hip arthroplasties in the Norwegian Arthroplasty Register","volume":"86","author":"Lie","year":"2004","journal-title":"J. Bone Joint Surg. Br."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1007\/s00264-006-0189-5","article-title":"Cementless acetabular component inserted without screws\u2014The effect of immediate weight-bearing","volume":"31","author":"Ng","year":"2007","journal-title":"Int. Orthop."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"349","DOI":"10.1054\/arth.2002.30412","article-title":"Impact biomechanics and pelvic deformation during insertion of press-fit acetabular cups","volume":"17","author":"Kroeber","year":"2002","journal-title":"J. Arthroplast."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1341","DOI":"10.1177\/0954411913507706","article-title":"A novel method for measuring acetabular cup deformation in cadavers","volume":"227","author":"Bone","year":"2013","journal-title":"Proc. Inst. Mech. Eng. Part H"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/j.arth.2011.03.019","article-title":"Deformation of 1-piece metal acetabular components","volume":"27","author":"Springer","year":"2012","journal-title":"J. Arthroplast."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1007\/s11999-012-2553-7","article-title":"Acetabular cup design influences deformational response in total hip arthroplasty","volume":"471","author":"Meding","year":"2013","journal-title":"Clin. Orthop. Relat. Res."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1115\/1.2165701","article-title":"Acetabular cup geometry and bone-implant interference have more influence on initial periprosthetic joint space than joint loading and surgical cup insertion","volume":"128","author":"Ong","year":"2006","journal-title":"J. Biomech. Eng."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1302\/0301-620X.97B4.35017","article-title":"The influence of the strength of bone on the deformation of acetabular shells: A laboratory experiment in cadavers","volume":"97-B","author":"Bone","year":"2015","journal-title":"Bone Joint J."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1111\/vsu.12629","article-title":"Deformation of the Zurich cementless acetabular cup caused by implantation in a canine cadaver model","volume":"46","author":"Panjeton","year":"2017","journal-title":"Vet. Surg."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1131","DOI":"10.1007\/s00264-010-1077-6","article-title":"Deformation of metal-backed acetabular components and the impact of liner thickness in a cadaveric model","volume":"35","author":"Markel","year":"2011","journal-title":"Int. Orthop."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Liu, F., Chen, Z., Gu, Y., Wang, Q., Cui, W., and Fan, W. (2012). Deformation of the Durom acetabular component and its impact on tribology in a cadaveric model\u2014A simulator study. PLoS ONE, 7.","DOI":"10.1371\/journal.pone.0045786"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"240","DOI":"10.1007\/s00776-008-1212-z","article-title":"Experimental investigations of the insertion and deformation behavior of press-fit and threaded acetabular cups for total hip replacement","volume":"13","author":"Fritsche","year":"2008","journal-title":"J. Orthop. Sci."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1467","DOI":"10.1002\/jor.20918","article-title":"Biomechanical modeling of acetabular component polyethylene stresses, fracture risk, and wear rate following press-fit implantation","volume":"27","author":"Ong","year":"2009","journal-title":"J. Orthop. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/j.clinbiomech.2019.07.014","article-title":"Deformation of acetabular press-fit cups: Influence of design and surgical factors","volume":"69","author":"Campbell","year":"2019","journal-title":"Clin. Biomech. (Bristol, Avon)"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1838","DOI":"10.1016\/j.arth.2018.01.068","article-title":"Treatment of High-Grade Acetabular Defects: Do Porous Titanium Cups Provide Better Stability Than Traditional Titanium Cups When Combined With an Augment?","volume":"33","author":"Beckmann","year":"2018","journal-title":"J. Arthroplast."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"580","DOI":"10.1016\/j.arth.2017.09.023","article-title":"Comparison of the Primary Stability of a Porous Coated Acetabular Revision Cup With a Standard Cup","volume":"33","author":"Beckmann","year":"2018","journal-title":"J. Arthroplast."},{"key":"ref_19","unstructured":"(2016, January 15). OrthoLoad. Available online: http:\/\/www.OrthoLoad.com."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"969","DOI":"10.1016\/0021-9290(93)90058-M","article-title":"Hip joint loading during walking and running, measured in two patients","volume":"26","author":"Bergmann","year":"1993","journal-title":"J. Biomech."},{"key":"ref_21","first-page":"65","article-title":"Realistic loads for testing hip implants","volume":"20","author":"Bergmann","year":"2010","journal-title":"Biomed. Mater. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Wei\u00dfmann, V., Boss, C., Schulze, C., Hansmann, H., and Bader, R. (2018). Experimental Characterization of the Primary Stability of Acetabular Press-Fit Cups with Open-Porous Load-Bearing Structures on the Surface Layer. Metals, 8.","DOI":"10.3390\/met8100839"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"5496396","DOI":"10.1155\/2016\/5496396","article-title":"Failure of Polyethylene Inlays in Cementless Total Hip Arthroplasty: A Retrieval Analysis","volume":"2016","author":"Mueller","year":"2016","journal-title":"BioMed. Res. Int."},{"key":"ref_24","first-page":"21","article-title":"Power Comparisons of Shapiro-Wilk, Kolmogorov-Smirnov, Lilliefors and Anderson-Darling Tests","volume":"2","author":"Razali","year":"2011","journal-title":"J. Stat. Model. Anal."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1007\/s00264-007-0364-3","article-title":"Total hip arthroplasties: What are the reasons for revision?","volume":"32","author":"Ulrich","year":"2008","journal-title":"Int. Orthop."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"128","DOI":"10.2106\/JBJS.H.00155","article-title":"The epidemiology of revision total hip arthroplasty in the United States","volume":"91","author":"Bozic","year":"2009","journal-title":"J. Bone Joint Surg. Am."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"926","DOI":"10.1054\/arth.2002.34526","article-title":"Load transfer and fixation mode of press-fit acetabular sockets","volume":"17","author":"Widmer","year":"2002","journal-title":"J. Arthroplast."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"849","DOI":"10.2106\/00004623-199274060-00006","article-title":"Periprosthetic bone loss in total hip arthroplasty. Polyethylene wear debris and the concept of the effective joint space","volume":"74","author":"Schmalzried","year":"1992","journal-title":"J. Bone Joint Surg. Am."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"282","DOI":"10.1302\/2046-3758.74.BJR-2017-0198.R1","article-title":"Comparison of the stability of three fixation techniques between porous metal acetabular components and augments","volume":"7","author":"Beckmann","year":"2018","journal-title":"Bone Joint Res."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1055\/s-2008-1039388","article-title":"Etiology, diagnosis and therapy of aseptic hip prosthesis loosening\u2014A status assessment","volume":"135","author":"Wirtz","year":"1997","journal-title":"Z. Orthop. Ihre Grenzgeb."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"641","DOI":"10.1302\/0301-620X.78B4.0780641","article-title":"Periprosthetic bone resorption. Particles versus movement","volume":"78","author":"Aspenberg","year":"1996","journal-title":"J. Bone Joint Surg. Br."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1002\/j.1097-4636.1987.tb00003.x","article-title":"Porous-surfaced metallic implants for orthopedic applications","volume":"21","author":"Pilliar","year":"1987","journal-title":"J. Biomed. Mater. Res."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1515\/BMT.2005.055","article-title":"Initial stability of press-fit acetabular cups\u2014An in-vitro study","volume":"50","author":"Wetzel","year":"2005","journal-title":"Biomed. Technol. (Berl)"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1243\/095441105X69150","article-title":"Deformation of press-fitted metallic resurfacing cups. Part 1: Experimental simulation","volume":"220","author":"Lin","year":"2006","journal-title":"Proc. Inst. Mech. Eng. Part H"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"72","DOI":"10.1016\/j.arth.2006.04.016","article-title":"Acetabular component deformation with press-fit fixation","volume":"21","author":"Squire","year":"2006","journal-title":"J. Arthroplast."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1097\/00003086-199308000-00022","article-title":"Evaluation of initial surface apposition in porous-coated acetabular components","volume":"293","author":"Schwartz","year":"1993","journal-title":"Clin. Orthop. Relat. Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1097\/00003086-199212000-00005","article-title":"Quantification of implant micromotion, strain shielding, and bone resorption with porous-coated anatomic medullary locking femoral prostheses","volume":"285","author":"Engh","year":"1992","journal-title":"Clin. Orthop. Relat. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1097\/00003086-198607000-00023","article-title":"Observations on the effect of movement on bone ingrowth into porous-surfaced implants","volume":"208","author":"Pilliar","year":"1986","journal-title":"Clin. Orthop. Relat. Res."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1097\/00003086-199401000-00018","article-title":"Areas of contact and extent of gaps with implantation of oversized acetabular components in total hip arthroplasty","volume":"298","author":"MacKenzie","year":"1994","journal-title":"Clin. Orthop. Relat. Res."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1302\/0301-620X.98B1.36139","article-title":"The jumbo acetabular component for acetabular revision: Curtain Calls and Caveats","volume":"98","author":"Lachiewicz","year":"2016","journal-title":"Bone Joint J."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"1183","DOI":"10.1016\/S0021-9290(99)00121-9","article-title":"The influence of friction and interference on the seating of a hemispherical press-fit cup: A finite element investigation","volume":"32","author":"Spears","year":"1999","journal-title":"J. Biomech."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1243\/095441105X69105","article-title":"Deformation of press-fitted metallic resurfacing cups. Part 2: Finite element simulation","volume":"220","author":"Yew","year":"2006","journal-title":"Proc. Inst. Mech. Eng. Part H"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1007\/s11999-015-4396-5","article-title":"Polyethylene Liner Dissociation Is a Complication of the DePuy Pinnacle Cup: A Report of 23 Cases","volume":"474","author":"Yun","year":"2016","journal-title":"Clin. Orthop. Relat. Res."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"781","DOI":"10.1177\/0954411914546562","article-title":"Validation of an optical system to measure acetabular shell deformation in cadavers","volume":"228","author":"Dold","year":"2014","journal-title":"Proc. Inst. Mech. Eng. Part H"}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/13\/1\/52\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:44:10Z","timestamp":1760190250000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/13\/1\/52"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,12,20]]},"references-count":44,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2020,1]]}},"alternative-id":["ma13010052"],"URL":"https:\/\/doi.org\/10.3390\/ma13010052","relation":{},"ISSN":["1996-1944"],"issn-type":[{"type":"electronic","value":"1996-1944"}],"subject":[],"published":{"date-parts":[[2019,12,20]]}}}