{"id":"https://openalex.org/W7225748301","doi":"https://doi.org/10.1186/s42836-026-00448-w","title":"Preoperative mental health predicts early satisfaction but not two-year knee-specific functional improvement after unicompartmental knee arthroplasty: an analysis of a robotic-assisted cohort","display_name":"Preoperative mental health predicts early satisfaction but not two-year knee-specific functional improvement after unicompartmental knee arthroplasty: an analysis of a robotic-assisted cohort","publication_year":2026,"publication_date":"2026-11-11","ids":{"openalex":"https://openalex.org/W7225748301","doi":"https://doi.org/10.1186/s42836-026-00448-w"},"language":"en","primary_location":{"id":"doi:10.1186/s42836-026-00448-w","doi":"https://doi.org/10.1186/s42836-026-00448-w","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s42836-026-00448-w","pdf_url":null,"source":{"id":"https://openalex.org/S4210202720","display_name":"Arthroplasty","issn_l":"2524-7948","issn":["2524-7948"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Arthroplasty","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1186/s42836-026-00448-w","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5135215409","display_name":"Yong Ng","orcid":"https://orcid.org/0009-0002-5316-7130","observed_orcids":["https://orcid.org/0009-0002-5316-7130"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yong Ng","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082334237","display_name":"J. W. L. Lim","orcid":"https://orcid.org/0009-0006-9316-7548","observed_orcids":["https://orcid.org/0009-0006-9316-7548"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jeremy Tze En Lim","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5161376467","display_name":"Isaac Chan","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Isaac Chan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5161411552","display_name":"Elliot Jun Wei Goh","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Elliot Jun Wei Goh","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052694677","display_name":"Darren Keng Jin Tay","orcid":"https://orcid.org/0000-0002-5317-2151","observed_orcids":["https://orcid.org/0000-0002-5317-2151"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Darren Keng Jin Tay","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5161413986","display_name":"Hee Nee Pang","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hee Nee Pang","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110252628","display_name":"Seng-Jin Yeo","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Seng-Jin Yeo","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5085555501","display_name":"Ming Han Lincoln Liow","orcid":"https://orcid.org/0000-0002-4496-8035","observed_orcids":["https://orcid.org/0000-0002-4496-8035"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ming Han Lincoln Liow","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2790,"currency":"USD","value_usd":2790},"apc_paid":{"value":2790,"currency":"USD","value_usd":2790},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"8","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10562","display_name":"Total Knee Arthroplasty Outcomes","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10562","display_name":"Total Knee Arthroplasty Outcomes","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10442","display_name":"Knee injuries and reconstruction techniques","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10084","display_name":"Musculoskeletal pain and rehabilitation","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.828499972820282},{"id":"https://openalex.org/C134362201","wikidata":"https://www.wikidata.org/wiki/Q317309","display_name":"Mental health","level":2,"score":0.8133999705314636},{"id":"https://openalex.org/C2780463824","wikidata":"https://www.wikidata.org/wiki/Q7115567","display_name":"Oxford knee score","level":4,"score":0.6938999891281128},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.6304000020027161},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.6287999749183655},{"id":"https://openalex.org/C2778829800","wikidata":"https://www.wikidata.org/wiki/Q7884755","display_name":"Unicompartmental knee arthroplasty","level":4,"score":0.5946000218391418},{"id":"https://openalex.org/C151956035","wikidata":"https://www.wikidata.org/wiki/Q1132755","display_name":"Logistic regression","level":2,"score":0.5030999779701233},{"id":"https://openalex.org/C2775944032","wikidata":"https://www.wikidata.org/wiki/Q22907659","display_name":"Patient satisfaction","level":2,"score":0.486299991607666},{"id":"https://openalex.org/C2776164576","wikidata":"https://www.wikidata.org/wiki/Q62736","display_name":"Osteoarthritis","level":3,"score":0.45649999380111694},{"id":"https://openalex.org/C2778336525","wikidata":"https://www.wikidata.org/wiki/Q708178","display_name":"Arthroplasty","level":2,"score":0.435699999332428},{"id":"https://openalex.org/C2776237627","wikidata":"https://www.wikidata.org/wiki/Q133549","display_name":"SF-36","level":4,"score":0.43130001425743103},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.42590001225471497},{"id":"https://openalex.org/C2993280860","wikidata":"https://www.wikidata.org/wiki/Q12147","display_name":"Physical health","level":3,"score":0.31139999628067017},{"id":"https://openalex.org/C3017871827","wikidata":"https://www.wikidata.org/wiki/Q1693864","display_name":"Total knee arthroplasty","level":2,"score":0.2935999929904938},{"id":"https://openalex.org/C2779517570","wikidata":"https://www.wikidata.org/wiki/Q7144954","display_name":"Patient-reported outcome","level":3,"score":0.2856999933719635},{"id":"https://openalex.org/C17923572","wikidata":"https://www.wikidata.org/wiki/Q7250160","display_name":"Propensity score matching","level":2,"score":0.2718000113964081},{"id":"https://openalex.org/C188816634","wikidata":"https://www.wikidata.org/wiki/Q2113324","display_name":"Prospective cohort study","level":2,"score":0.26409998536109924},{"id":"https://openalex.org/C87227347","wikidata":"https://www.wikidata.org/wiki/Q7100713","display_name":"Ordered logit","level":2,"score":0.2623000144958496},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.25429999828338623},{"id":"https://openalex.org/C2777722626","wikidata":"https://www.wikidata.org/wiki/Q2902695","display_name":"Preoperative care","level":2,"score":0.25429999828338623}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1186/s42836-026-00448-w","doi":"https://doi.org/10.1186/s42836-026-00448-w","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s42836-026-00448-w","pdf_url":null,"source":{"id":"https://openalex.org/S4210202720","display_name":"Arthroplasty","issn_l":"2524-7948","issn":["2524-7948"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Arthroplasty","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1186/s42836-026-00448-w","doi":"https://doi.org/10.1186/s42836-026-00448-w","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s42836-026-00448-w","pdf_url":null,"source":{"id":"https://openalex.org/S4210202720","display_name":"Arthroplasty","issn_l":"2524-7948","issn":["2524-7948"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Arthroplasty","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1513461128","https://openalex.org/W1977733462","https://openalex.org/W1978351945","https://openalex.org/W2018416312","https://openalex.org/W2021845635","https://openalex.org/W2044014917","https://openalex.org/W2050302634","https://openalex.org/W2087164391","https://openalex.org/W2097456882","https://openalex.org/W2103272397","https://openalex.org/W2103724514","https://openalex.org/W2125404215","https://openalex.org/W2159889184","https://openalex.org/W2254014893","https://openalex.org/W2285383124","https://openalex.org/W2301197086","https://openalex.org/W2555022879","https://openalex.org/W2754569035","https://openalex.org/W2783082266","https://openalex.org/W2790392703","https://openalex.org/W2793825507","https://openalex.org/W2794461827","https://openalex.org/W2897922334","https://openalex.org/W2909092078","https://openalex.org/W2917113195","https://openalex.org/W2936668541","https://openalex.org/W2969664334","https://openalex.org/W3010842348","https://openalex.org/W3024264619","https://openalex.org/W3039248442","https://openalex.org/W3135576280","https://openalex.org/W3159884153","https://openalex.org/W3185535190","https://openalex.org/W3187950998","https://openalex.org/W4213086983","https://openalex.org/W4220791321","https://openalex.org/W4307908376","https://openalex.org/W4311426073","https://openalex.org/W4392482793","https://openalex.org/W4396553776","https://openalex.org/W4399026342","https://openalex.org/W4404055203","https://openalex.org/W4413584259","https://openalex.org/W4416199240","https://openalex.org/W7124933192","https://openalex.org/W7135103352"],"related_works":[],"abstract_inverted_index":{"Abstract":[0],"Background":[1],"Preoperative":[2,327],"mental":[3,37,51,58,109,119,163,355,388,398,411,427],"health":[4,38,52,59,110,120,164,356,389,399,412,428],"is":[5,441],"an":[6,364,442],"important":[7],"determinant":[8],"of":[9,34,158,368],"patient-reported":[10],"outcome":[11],"measures":[12],"(PROMs),":[13],"but":[14,394],"its":[15],"influence":[16],"in":[17,50,172,178,217,226,248,298,420],"unicompartmental":[18],"knee":[19],"arthroplasty":[20],"(UKA)":[21],"remains":[22],"poorly":[23],"characterized.":[24],"In":[25,310],"this":[26,380],"robotic-assisted":[27,73,381],"UKA":[28,382],"cohort,":[29,90,383],"we":[30],"determined":[31],"the":[32,48,87,129,173,179,187,218,242,249,254,299,324,374],"effect":[33],"poor":[35,108,386],"preoperative":[36,57,96,168,206,387,410,426],"on":[39,70],"PROMs":[40,322],"at":[41,193,238,307,422],"six":[42,194,277],"months":[43,195],"and":[44,55,62,79,91,117,133,139,150,162,176,196,208,229,286,338,401],"two":[45,197,239,308,414,423],"years,":[46,240,415],"described":[47],"change":[49],"after":[53],"surgery,":[54],"whether":[56],"predicted":[60,330],"satisfaction":[61,279,332,421],"expectation":[63,151,160,287,339],"fulfilment.":[64],"Methods":[65],"Prospectively":[66],"collected":[67],"registry":[68],"data":[69],"241":[71],"consecutive":[72],"medial":[74],"UKAs":[75],"performed":[76],"between":[77],"2017":[78],"2024":[80],"were":[81,93,295],"reviewed.":[82],"Of":[83],"these,":[84],"121":[85],"formed":[86],"primary":[88],"complete-case":[89],"patients":[92,317,384,434,451],"stratified":[94],"by":[95,413],"36-item":[97],"Short":[98],"Form":[99],"Health":[100],"Survey":[101],"(SF-36)":[102],"Mental":[103],"Component":[104,146],"Summary":[105,147],"(MCS)":[106],"into":[107],"(MCS":[111,121],"<":[112,184,201,215],"50,":[113,123],"n":[114,124],"=":[115,125,262,270,274,284,293,336,344,361],"51)":[116],"good":[118],"\u2265":[122,370],"70).":[126],"Outcomes":[127],"included":[128],"Knee":[130,134,141],"Society":[131],"Function":[132],"Score":[135,142],"(KSFS":[136],"&":[137],"KSKS)":[138],"Oxford":[140],"(OKS),":[143],"SF-36":[144,250],"Physical":[145],"(PCS),":[148],"satisfaction,":[149,159,393],"fulfillment.":[152],"Multivariable":[153],"logistic":[154],"regression":[155],"identified":[156],"predictors":[157],"fulfilment,":[161],"recovery.":[165],"Results":[166],"Mean":[167],"MCS":[169,191,316,328,350,369,440],"was":[170,236,305,351],"41.2":[171],"low-MCS":[174,219,255,300,347],"group":[175,181,244,256],"58.2":[177],"high-MCS":[180,243,325],"(":[182,199,213],"p":[183,200,214,261,269,273,283,292,335,343,360],"0.001),":[185],"with":[186,241,353,363,385,408,416],"former":[188],"achieving":[189,245],"greater":[190,246],"improvement":[192],"years":[198],"0.05).":[202],"Despite":[203],"a":[204,209],"lower":[205,297,391],"KSKS":[207],"higher":[210],"(worse)":[211],"OKS":[212],"0.05)":[216],"group,":[220,301],"both":[221],"groups":[222],"demonstrated":[223],"comparable":[224,405],"improvements":[225,247],"KSFS,":[227],"KSKS,":[228],"OKS.":[230],"However,":[231],"divergent":[232],"global":[233],"physical":[234],"recovery":[235,400],"observed":[237],"PCS":[251],"compared":[252],"to":[253,406],"(\u0394":[257],"17.0":[258],"versus":[259,267,281,290],"11.1,":[260],"0.006;":[263],"MCID":[264],"attainment":[265],"85.7%":[266],"66.7%,":[268],"0.024;":[271],"ANCOVA-adjusted":[272],"0.002).":[275],"At":[276],"months,":[278],"(82.4":[280],"97.1%;":[282],"0.008)":[285,294],"fulfillment":[288,340],"(70.6":[289],"90.0%;":[291],"significantly":[296,319],"while":[302],"no":[303,417],"difference":[304,419],"detected":[306],"years.":[309,424],"exploratory":[311,445],"subgroup":[312],"analysis,":[313],"persistently":[314],"low":[315],"had":[318],"worse":[320],"two-year":[321,354],"than":[323],"group.":[326],"independently":[329],"six-month":[331,349,439],"(OR":[333,341,358],"1.078;":[334],"0.005)":[337],"1.061;":[342],"0.005).":[345],"Among":[346],"patients,":[348],"associated":[352],"normalization":[357],"1.083;":[359],"0.008),":[362],"internally":[365,443],"derived":[366,444],"cutoff":[367],"53":[371],"(area":[372],"under":[373],"curve":[375],"[AUC],":[376],"0.783).":[377],"Conclusions":[378],"Within":[379],"reported":[390],"early":[392],"still":[395],"achieved":[396],"meaningful":[397],"knee-specific":[402],"functional":[403],"gains":[404],"those":[407],"better":[409],"detectable":[418],"Poor":[425],"should":[429],"not":[430],"preclude":[431],"appropriately":[432],"selected":[433],"from":[435],"undergoing":[436],"UKA.":[437],"The":[438],"signal":[446],"that":[447],"may":[448],"help":[449],"identify":[450],"warranting":[452],"closer":[453],"monitoring.":[454]},"counts_by_year":[],"updated_date":"2026-11-11T12:16:26.678958","created_date":"2026-11-11T00:00:00"}
