Ontology type: schema:ScholarlyArticle Open Access: True
2014-09
AUTHORSMarius Molund, Lars Engebretsen, Kjetil Hvaal, Jan Hellesnes, Elisabeth Ellingsen Husebye
ABSTRACTBACKGROUND: Knee dislocation may be associated with an injury to the common peroneal nerve with a subsequent foot drop. Previous studies have demonstrated good functional results after posterior tibial tendon transfer in patients with foot drop. No studies, to our knowledge, have focused exclusively on knee dislocation as the cause of common peroneal nerve injury leading to foot drop. QUESTIONS/PURPOSES: We determined the percentage of patients developing common peroneal nerve paresis after knee dislocation, the symptom improvement rate in these patients, and patient-reported outcomes (American Orthopaedic Foot and Ankle Society [AOFAS] ankle-hindfoot score), ankle dorsiflexion strength, and ROM in patients with no symptom improvement treated with posterior tibial tendon transfer. METHODS: Two hundred forty-seven patients with knee dislocation, defined as an injury to both the ACL and PCL with an additional injury to the lateral and/or medial ligaments (Schenck Classification II to IV), were registered in a single institution's database between 1996 and 2011. The database was queried for the frequency of documented injuries to the common peroneal nerve and, among those, the frequency of spontaneous resolution after this injury. Patients demonstrating no active dorsiflexion 12 months after injury generally were offered posterior tibial tendon transfer. Postoperatively, patients were evaluated for AOFAS score, ankle dorsiflexion strength, and ROM. RESULTS: Forty-three patients (17%) had a common peroneal nerve paresis at admission. At 1-year followup, 15 of 43 patients (35%) had experienced symptom improvement. One patient experienced spontaneous improvement later than 1 year after injury. One patient was lost to followup. A below-knee amputation was performed in one patient due to the initial trauma. Seven patients were satisfied with their function using a brace or had medical contraindications to surgical treatment, while four patients refused the proposed operation with a tendon transfer, leaving 14 patients treated with posterior tibial tendon transfer. In the 12 patients available for evaluation, mean AOFAS score was 91 of 100. Mean (± SD) dorsiflexion strength was 118 (± 55) Nm on the operated side and 284 (± 94) Nm on the unaffected side (p < 0.001). Mean ROM was 67° (± 15°) on the operated side and 93° (± 14°) on the unaffected side (p < 0.001). CONCLUSIONS: Based on these findings, we recommend posterior tibial tendon transfer for treatment of foot drop that persists at least 1 year after knee dislocation. LEVEL OF EVIDENCE: Level IV, therapeutic study. See Instructions for Authors for a complete description of levels of evidence. More... »
PAGES2637-2643
http://scigraph.springernature.com/pub.10.1007/s11999-014-3533-x
DOIhttp://dx.doi.org/10.1007/s11999-014-3533-x
DIMENSIONShttps://app.dimensions.ai/details/publication/pub.1012602983
PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/24566891
JSON-LD is the canonical representation for SciGraph data.
TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT
[
{
"@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json",
"about": [
{
"id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/1103",
"inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/",
"name": "Clinical Sciences",
"type": "DefinedTerm"
},
{
"id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/11",
"inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/",
"name": "Medical and Health Sciences",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Adult",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Female",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Follow-Up Studies",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Foot",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Gait Disorders, Neurologic",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Humans",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Knee Dislocation",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Male",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Middle Aged",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Posterior Tibial Tendon Dysfunction",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Range of Motion, Articular",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Recovery of Function",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Retrospective Studies",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Tendon Transfer",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Treatment Outcome",
"type": "DefinedTerm"
},
{
"inDefinedTermSet": "https://www.nlm.nih.gov/mesh/",
"name": "Young Adult",
"type": "DefinedTerm"
}
],
"author": [
{
"affiliation": {
"alternateName": "Oslo University Hospital",
"id": "https://www.grid.ac/institutes/grid.55325.34",
"name": [
"Department of Orthopaedic Surgery, Oslo University Hospital, Ullevaal, Box 4950 Nydalen, 0424, Oslo, Norway"
],
"type": "Organization"
},
"familyName": "Molund",
"givenName": "Marius",
"id": "sg:person.01144714764.97",
"sameAs": [
"https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01144714764.97"
],
"type": "Person"
},
{
"affiliation": {
"alternateName": "Oslo University Hospital",
"id": "https://www.grid.ac/institutes/grid.55325.34",
"name": [
"Department of Orthopaedic Surgery, Oslo University Hospital, Ullevaal, Box 4950 Nydalen, 0424, Oslo, Norway"
],
"type": "Organization"
},
"familyName": "Engebretsen",
"givenName": "Lars",
"id": "sg:person.01173352330.57",
"sameAs": [
"https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01173352330.57"
],
"type": "Person"
},
{
"affiliation": {
"alternateName": "Oslo University Hospital",
"id": "https://www.grid.ac/institutes/grid.55325.34",
"name": [
"Department of Orthopaedic Surgery, Oslo University Hospital, Ullevaal, Box 4950 Nydalen, 0424, Oslo, Norway"
],
"type": "Organization"
},
"familyName": "Hvaal",
"givenName": "Kjetil",
"id": "sg:person.013462234034.62",
"sameAs": [
"https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.013462234034.62"
],
"type": "Person"
},
{
"affiliation": {
"alternateName": "Oslo University Hospital",
"id": "https://www.grid.ac/institutes/grid.55325.34",
"name": [
"Department of Orthopaedic Surgery, Oslo University Hospital, Ullevaal, Box 4950 Nydalen, 0424, Oslo, Norway"
],
"type": "Organization"
},
"familyName": "Hellesnes",
"givenName": "Jan",
"id": "sg:person.01327256564.45",
"sameAs": [
"https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.01327256564.45"
],
"type": "Person"
},
{
"affiliation": {
"alternateName": "Oslo University Hospital",
"id": "https://www.grid.ac/institutes/grid.55325.34",
"name": [
"Department of Orthopaedic Surgery, Oslo University Hospital, Ullevaal, Box 4950 Nydalen, 0424, Oslo, Norway"
],
"type": "Organization"
},
"familyName": "Ellingsen Husebye",
"givenName": "Elisabeth",
"id": "sg:person.0745460413.27",
"sameAs": [
"https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0745460413.27"
],
"type": "Person"
}
],
"citation": [
{
"id": "sg:pub.10.1007/s00167-009-0869-y",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1001967266",
"https://doi.org/10.1007/s00167-009-0869-y"
],
"type": "CreativeWork"
},
{
"id": "sg:pub.10.1007/s00167-009-0869-y",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1001967266",
"https://doi.org/10.1007/s00167-009-0869-y"
],
"type": "CreativeWork"
},
{
"id": "sg:pub.10.1007/s00167-009-0869-y",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1001967266",
"https://doi.org/10.1007/s00167-009-0869-y"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005373-196903000-00002",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1003861398"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005373-196903000-00002",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1003861398"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005373-196903000-00002",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1003861398"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1302/0301-620x.88b6.17448",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1012609156"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/s0278-5919(05)70219-2",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1019545212"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/s0278-5919(05)70219-2",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1019545212"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1302/0301-620x.87b5.15607",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1022925162"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1227/01.neu.0000124752.40412.03",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1023446988"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1080/17453674.1997.11744752",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1023723631"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/j.apmr.2009.02.021",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1024912623"
],
"type": "CreativeWork"
},
{
"id": "sg:pub.10.1007/s002640100229",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1034711223",
"https://doi.org/10.1007/s002640100229"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/s0278-5919(05)70218-0",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1035103896"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/s0278-5919(05)70218-0",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1035103896"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3109/17453679808999265",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1036154646"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/j.fas.2013.04.001",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1037460096"
],
"type": "CreativeWork"
},
{
"id": "sg:pub.10.1007/s001670050208",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1043640932",
"https://doi.org/10.1007/s001670050208"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/s0278-5919(05)70214-3",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1046341777"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1016/s0278-5919(05)70214-3",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1046341777"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1001/archsurg.1992.01420090060009",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1047755605"
],
"type": "CreativeWork"
},
{
"id": "sg:pub.10.1007/s11999-008-0249-9",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1052521354",
"https://doi.org/10.1007/s11999-008-0249-9"
],
"type": "CreativeWork"
},
{
"id": "sg:pub.10.1007/s11999-008-0249-9",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1052521354",
"https://doi.org/10.1007/s11999-008-0249-9"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1007/s11999-008-0249-9",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1052521354"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1055/s-0028-1103502",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1057119410"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00003086-198509000-00014",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060161247"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00003086-198509000-00014",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060161247"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00003086-198509000-00014",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060161247"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005131-199710000-00011",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060198792"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005131-199710000-00011",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060198792"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005131-199710000-00011",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060198792"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1097/00005131-199710000-00011",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1060198792"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1177/0363546508325669",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1063821257"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.1177/0363546508325669",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1063821257"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.2106/00004623-197153010-00002",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1068885006"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.2106/00004623-197759020-00017",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1068886522"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.2519/jospt.1988.10.6.213",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1070871408"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3113/fai.2008.0351",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1070990627"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3113/fai.2008.0351",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1070990627"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3171/2011.9.focus11187",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071077087"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3171/2011.9.focus11187",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071077087"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3171/2011.9.focus11187",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071077087"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3171/2011.9.focus11187",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071077087"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3171/2011.9.focus11187",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071077087"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3171/2011.9.focus11187",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071077087"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.3944/aott.2008.310",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1071752657"
],
"type": "CreativeWork"
},
{
"id": "https://doi.org/10.5435/00124635-200409000-00008",
"sameAs": [
"https://app.dimensions.ai/details/publication/pub.1072859015"
],
"type": "CreativeWork"
},
{
"id": "https://app.dimensions.ai/details/publication/pub.1074621707",
"type": "CreativeWork"
},
{
"id": "https://app.dimensions.ai/details/publication/pub.1075236128",
"type": "CreativeWork"
},
{
"id": "https://app.dimensions.ai/details/publication/pub.1078155278",
"type": "CreativeWork"
},
{
"id": "https://app.dimensions.ai/details/publication/pub.1082229180",
"type": "CreativeWork"
},
{
"id": "https://app.dimensions.ai/details/publication/pub.1083179206",
"type": "CreativeWork"
}
],
"datePublished": "2014-09",
"datePublishedReg": "2014-09-01",
"description": "BACKGROUND: Knee dislocation may be associated with an injury to the common peroneal nerve with a subsequent foot drop. Previous studies have demonstrated good functional results after posterior tibial tendon transfer in patients with foot drop. No studies, to our knowledge, have focused exclusively on knee dislocation as the cause of common peroneal nerve injury leading to foot drop.\nQUESTIONS/PURPOSES: We determined the percentage of patients developing common peroneal nerve paresis after knee dislocation, the symptom improvement rate in these patients, and patient-reported outcomes (American Orthopaedic Foot and Ankle Society [AOFAS] ankle-hindfoot score), ankle dorsiflexion strength, and ROM in patients with no symptom improvement treated with posterior tibial tendon transfer.\nMETHODS: Two hundred forty-seven patients with knee dislocation, defined as an injury to both the ACL and PCL with an additional injury to the lateral and/or medial ligaments (Schenck Classification II to IV), were registered in a single institution's database between 1996 and 2011. The database was queried for the frequency of documented injuries to the common peroneal nerve and, among those, the frequency of spontaneous resolution after this injury. Patients demonstrating no active dorsiflexion 12 months after injury generally were offered posterior tibial tendon transfer. Postoperatively, patients were evaluated for AOFAS score, ankle dorsiflexion strength, and ROM.\nRESULTS: Forty-three patients (17%) had a common peroneal nerve paresis at admission. At 1-year followup, 15 of 43 patients (35%) had experienced symptom improvement. One patient experienced spontaneous improvement later than 1 year after injury. One patient was lost to followup. A below-knee amputation was performed in one patient due to the initial trauma. Seven patients were satisfied with their function using a brace or had medical contraindications to surgical treatment, while four patients refused the proposed operation with a tendon transfer, leaving 14 patients treated with posterior tibial tendon transfer. In the 12 patients available for evaluation, mean AOFAS score was 91 of 100. Mean (\u00b1 SD) dorsiflexion strength was 118 (\u00b1 55) Nm on the operated side and 284 (\u00b1 94) Nm on the unaffected side (p < 0.001). Mean ROM was 67\u00b0 (\u00b1 15\u00b0) on the operated side and 93\u00b0 (\u00b1 14\u00b0) on the unaffected side (p < 0.001).\nCONCLUSIONS: Based on these findings, we recommend posterior tibial tendon transfer for treatment of foot drop that persists at least 1 year after knee dislocation.\nLEVEL OF EVIDENCE: Level IV, therapeutic study. See Instructions for Authors for a complete description of levels of evidence.",
"genre": "research_article",
"id": "sg:pub.10.1007/s11999-014-3533-x",
"inLanguage": [
"en"
],
"isAccessibleForFree": true,
"isPartOf": [
{
"id": "sg:journal.1007212",
"issn": [
"0009-921X",
"1528-1132"
],
"name": "Clinical Orthopaedics and Related Research\u00ae",
"type": "Periodical"
},
{
"issueNumber": "9",
"type": "PublicationIssue"
},
{
"type": "PublicationVolume",
"volumeNumber": "472"
}
],
"name": "Posterior Tibial Tendon Transfer Improves Function for Foot Drop After Knee Dislocation",
"pagination": "2637-2643",
"productId": [
{
"name": "readcube_id",
"type": "PropertyValue",
"value": [
"3c0b201b0eb138fe67f72f19d8bf6a4435dd907f61666af00d19462bf1496b27"
]
},
{
"name": "pubmed_id",
"type": "PropertyValue",
"value": [
"24566891"
]
},
{
"name": "nlm_unique_id",
"type": "PropertyValue",
"value": [
"0075674"
]
},
{
"name": "doi",
"type": "PropertyValue",
"value": [
"10.1007/s11999-014-3533-x"
]
},
{
"name": "dimensions_id",
"type": "PropertyValue",
"value": [
"pub.1012602983"
]
}
],
"sameAs": [
"https://doi.org/10.1007/s11999-014-3533-x",
"https://app.dimensions.ai/details/publication/pub.1012602983"
],
"sdDataset": "articles",
"sdDatePublished": "2019-04-10T23:26",
"sdLicense": "https://scigraph.springernature.com/explorer/license/",
"sdPublisher": {
"name": "Springer Nature - SN SciGraph project",
"type": "Organization"
},
"sdSource": "s3://com-uberresearch-data-dimensions-target-20181106-alternative/cleanup/v134/2549eaecd7973599484d7c17b260dba0a4ecb94b/merge/v9/a6c9fde33151104705d4d7ff012ea9563521a3ce/jats-lookup/v90/0000000001_0000000264/records_8693_00000520.jsonl",
"type": "ScholarlyArticle",
"url": "http://link.springer.com/10.1007%2Fs11999-014-3533-x"
}
]
Download the RDF metadata as: json-ld nt turtle xml License info
JSON-LD is a popular format for linked data which is fully compatible with JSON.
curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/s11999-014-3533-x'
N-Triples is a line-based linked data format ideal for batch operations.
curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/s11999-014-3533-x'
Turtle is a human-readable linked data format.
curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/s11999-014-3533-x'
RDF/XML is a standard XML format for linked data.
curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/s11999-014-3533-x'
This table displays all metadata directly associated to this object as RDF triples.
259 TRIPLES
21 PREDICATES
78 URIs
37 LITERALS
25 BLANK NODES