Revision strategy for posterior extrusion of the CHARITE polyethylene core
Authors
Eskander, Mark S.Onyedika, Ikechukwu I
Eskander, Jonathan P.
Connolly, Patrick J.
Eck, Jason C.
Lapinsky, Anthony
UMass Chan Affiliations
Department of Orthopedics and Physical RehabilitationDepartment of Orthopedic Surgery
Document Type
Journal ArticlePublication Date
2010-11-15Keywords
AdultArthroplasty, Replacement
Biomechanics
Device Removal
Female
Humans
Intervertebral Disc
Lumbar Vertebrae
*Polyethylene
Prosthesis Design
*Prosthesis Failure
Reoperation
Stress, Mechanical
Time Factors
Tomography, X-Ray Computed
Treatment Outcome
Orthopedics
Metadata
Show full item recordAbstract
STUDY DESIGN: This is a case report of a posterior extrusion of the polyethylene core from a CHARITE arthroplasty. This is the first reported case of posterior dislocation of the polyethylene and the revision strategies used to correct this problem. OBJECTIVE: To report a novel failure mechanism and revision strategy for CHARITE total disc arthroplasty (TDA). SUMMARY OF BACKGROUND DATA: Case report at a Level 1 tertiary care referral center in the northeastern United States. METHODS: This is a case report and review of the literature of a patient who sustained posterior dislocation of the polyethylene core from a CHARITE TDA several months after the index procedure. RESULTS: Core dislocation is a known complication of TDA. However, of the known reported dislocations all have been anterior. This case describes the first known occurrence of posterior core dislocation and the revision strategy for this problem. CONCLUSION: This case report highlights the first known case of a posterior dislocation of a CHARITE core. It is likely that altered biomechanical forces generated over time attributed to device failure. An instrumented posterior fusion with removal of the core is what ultimately led to a stable revision construct.Source
Spine (Phila Pa 1976). 2010 Nov 15;35(24):E1430-4. doi: 10.1097/BRS.0b013e3181e9bf30. Link to article on publisher's siteDOI
10.1097/BRS.0b013e3181e9bf30Permanent Link to this Item
http://hdl.handle.net/20.500.14038/42951PubMed ID
21030890Related Resources
Link to Article in PubMedae974a485f413a2113503eed53cd6c53
10.1097/BRS.0b013e3181e9bf30