Skip to main content
Key Specialties
Cardiology Diabetology Endocrinology Gastroenterology Geriatrics and Gerontology Gynecology and Obstetrics Hematology Infectious Disease Internal Medicine Nephrology Neurology Oncology Pediatrics Respiratory Medicine Rheumatology Surgery
Congress Coverage
2024 ACC Congress 2023 ESMO Congress 2023 EASD Congress 2023 ERS Congress 2023 ESC Congress
Clinical Collections
Advances in Alzheimer’s

Keynote webinar | Spotlight on medication adherence

LIVE: Thursday 27th June 2024, 18:00-19:30 (CEST)
Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.
ADVANCED SEARCH
Log in
Top
Journal of Orthopaedic Surgery and Research
Published in: Journal of Orthopaedic Surgery and Research 1/2011

Open Access 01-12-2011 | Research article

Intramedullary versus extramedullary alignment of the tibial component in the Triathlon knee

Authors: James P Cashman, Fiona L Carty, Keith Synnott, Paddy J Kenny

Published in: Journal of Orthopaedic Surgery and Research | Issue 1/2011

Login to get access

Abstract

Background

Long term survivorship in total knee arthroplasty is significantly dependant on prosthesis alignment. Our aim was determine which alignment guide was more accurate in positioning of the tibial component in total knee arthroplasty. We also aimed to assess whether there was any difference in short term patient outcome.

Method

A comparison of intramedullary versus extramedullary alignment jig was performed. Radiological alignment of tibial components and patient outcomes of 103 Triathlon total knee arthroplasties were analysed.

Results

Use of the intramedullary was found to be significantly more accurate in determining coronal alignment (p = 0.02) while use of the extramedullary jig was found to give more accurate results in sagittal alignment (p = 0.04). There was no significant difference in WOMAC or SF-36 at six months.

Conclusion

Use of an intramedullary jig is preferable for positioning of the tibial component using this knee system.
Appendix
Available only for authorised users
Literature
1.
Lotke PA, Ecker ML: Influence of positioning of prosthesis in total knee replacement. J Bone Joint Surg Am. 1977, 59 (1): 77-79.PubMed
2.
Bargren JH, Blaha JD, Freeman MA: Alignment in total knee arthroplasty. Correlated biomechanical and clinical observations. Clin Orthop Relat Res. 1983, 178-183. 173
3.
Longstaff LM, Sloan K, Stamp N, Scaddan M, Beaver R: Good alignment after total knee arthroplasty leads to faster rehabilitation and better function. J Arthroplasty. 2009, 24 (4): 570-578. 10.1016/j.arth.2008.03.002.CrossRefPubMed
4.
Lutzner J, Krummenauer F, Wolf C, Gunther KP, Kirschner S: Computer-assisted and conventional total knee replacement: a comparative, prospective, randomised study with radiological and CT evaluation. J Bone Joint Surg Br. 2008, 90 (8): 1039-1044. 10.1302/0301-620X.90B8.20553.CrossRefPubMed
5.
Slover JD, Tosteson AN, Bozic KJ, Rubash HE, Malchau H: Impact of hospital volume on the economic value of computer navigation for total knee replacement. J Bone Joint Surg Am. 2008, 90 (7): 1492-1500. 10.2106/JBJS.G.00888.PubMedCentralCrossRefPubMed
6.
Phillips AM, Goddard NJ, Tomlinson JE: Current techniques in total knee replacement: results of a national survey. Ann R Coll Surg Engl. 1996, 78 (6): 515-520.PubMedCentralPubMed
7.
Rottman SJ, Dvorkin M, Gold D: Extramedullary versus intramedullary tibial alignment guides for total knee arthroplasty. Orthopedics. 2005, 28 (12): 1445-1448.PubMed
8.
Reed MR, Bliss W, Sher JL, Emmerson KP, Jones SM, Partington PF: Extramedullary or intramedullary tibial alignment guides: a randomised, prospective trial of radiological alignment. J Bone Joint Surg Br. 2002, 84 (6): 858-860. 10.1302/0301-620X.84B6.12702.CrossRefPubMed
9.
Lozano LM, Segur JM, Macule F, Nunez M, Torner P, Castillo F, Suso S: Intramedullary versus extramedullary tibial cutting guide in severely obese patients undergoing total knee replacement: a randomized study of 70 patients with body mass index > 35 kg/m2. Obes Surg. 2008, 18 (12): 1599-1604. 10.1007/s11695-008-9564-1.CrossRefPubMed
10.
Caillouette JT, Anzel SH: Fat embolism syndrome following the intramedullary alignment guide in total knee arthroplasty. Clin Orthop Relat Res. 1990, 198-199. 251PubMed
11.
Maestro A, Harwin SF, Sandoval MG, Vaquero DH, Murcia A: Influence of intramedullary versus extramedullary alignment guides on final total knee arthroplasty component position: a radiographic analysis. J Arthroplasty. 1998, 13 (5): 552-558. 10.1016/S0883-5403(98)90055-9.CrossRefPubMed
Metadata
Title
Intramedullary versus extramedullary alignment of the tibial component in the Triathlon knee
Authors
James P Cashman
Fiona L Carty
Keith Synnott
Paddy J Kenny
Publication date
01-12-2011
Publisher
BioMed Central
Published in
Journal of Orthopaedic Surgery and Research / Issue 1/2011
Electronic ISSN: 1749-799X
DOI
https://doi.org/10.1186/1749-799X-6-44

Other articles of this Issue 1/2011

Journal of Orthopaedic Surgery and Research 1/2011 Go to the issue

Research article

Nonoperative treatment of slipped capital femoral epiphysis: a scientific study

Research article

The use of twin-ring Ilizarov external fixator constructs: application and biomechanical proof-of principle with possible clinical indications

Research article

Modified femoral pressuriser generates a longer lasting high pressure during cement pressurisation

Research article

Endoscopic decompression for intraforaminal and extraforaminal nerve root compression

Research article

The role of FGF-2 and BMP-2 in regulation of gene induction, cell proliferation and mineralization

Research article

A retrospective study of risk factors for poor outcomes in methicillin-resistant staphylococcus aureus (MRSA) infection in surgical patients