Comparison of Restricted Versus Unrestricted Kinematic Alignment in 1ry TKA
rKA-KA-TKA
Comparison of Restricted Kinematic Alignment Versus Unrestricted Kinematic Alignment in Primary Total Knee Arthroplasty:- Randomized Controlled Trial
1 other identifier
interventional
80
0 countries
N/A
Brief Summary
Knee osteoarthritis is a growing socioeconomic burden because of the ageing and obesity. By 2030, the majority of individuals undergoing knee arthroplasty in USA will be those younger than 65 years, with up to 1 million achieved annually. The definitive treatment for knee joint degeneration is total knee arthroplasty.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Feb 2025
Typical duration for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 5, 2024
CompletedFirst Posted
Study publicly available on registry
December 10, 2024
CompletedStudy Start
First participant enrolled
February 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 1, 2027
December 19, 2024
December 1, 2024
1.3 years
December 5, 2024
December 16, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Oxoford knee score
The Oxford Knee Score is a 12-item patient-reported outcomes specifically designed and developed to assess function and pain after total knee replacement arthroplasty. It is short, reproducible, valid and sensitive to clinically important changes. Score each question from 0 to 4 with 4 being the best outcome. This method, when summed, produces overall scores running from 0 to 48 with 48 being the best outcome
12 months
Secondary Outcomes (2)
Knee Injury and Osteoarthritis Outcome Score
24 months
Forgotten Joint Score
24 months
Study Arms (2)
Unrestricted kinematic alignment
EXPERIMENTALreproducing the constitutional tibiofemoral tridimensional alignment and knee laxity. It is almost a pure bone procedure with only exceptional collateral ligament release, which has been shown to reliably position knee components.
Restricted kinematic alignment
EXPERIMENTALreproducing patient's constitutional knee anatomy within a safe range while avoiding extreme or pathological anatomies that have been demonstrated to exist.
Interventions
Total knee arthroplasty (TKA) is a common orthopaedic surgery that involves replacing the articular surfaces (femoral condyles and tibial plateau) of the knee joint with smooth metal and highly cross-linked polyethylene plastic
Eligibility Criteria
You may qualify if:
- Patients suffered from end stage knee osteoarthritis of grade four according to Kellgren-Lawrence classification in at least one of the three knee compartments, who have an osteoarthritic knees of varus Coronal Plane Alignment of the Knee classification
You may not qualify if:
- Any valgus malalignment of the knee joint.
- Malalignment more than 10° or less than 3° varus of knee joint.
- Ligamentous laxity of the affected knee (medial or lateral collateral ligaments)
- any tumors or secondary neoplasia diseases
- Knee joint infection
- severe cardiopulmonary dysfunction.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (21)
Howell SM HM. Kinematic alignment in TKA: definition, surgical technique, and challenging cases.. Orthopedic Knowledge Online. 2012; 10(7).
BACKGROUNDRisitano S, Cacciola G, Sabatini L, Capella M, Bosco F, Giustra F, Masse A, Vaishya R. Restricted kinematic alignment in primary total knee arthroplasty: A systematic review of radiographic and clinical data. J Orthop. 2022 Jul 2;33:37-43. doi: 10.1016/j.jor.2022.06.014. eCollection 2022 Sep-Oct.
PMID: 35812351BACKGROUNDAlbishi W, AbuDujain NM, Arafah O, Alshaygy IS, Aldosari ZA, Alhuqbani MN, Alangari SM. Cross-cultural adaptation, validity and reliability of the Arabic version of the Forgotten Joint Score for knee arthroplasty. Knee Surg Sports Traumatol Arthrosc. 2023 Oct;31(10):4312-4318. doi: 10.1007/s00167-023-07484-y. Epub 2023 Jun 17.
PMID: 37329371BACKGROUNDBehrend H, Giesinger K, Giesinger JM, Kuster MS. The "forgotten joint" as the ultimate goal in joint arthroplasty: validation of a new patient-reported outcome measure. J Arthroplasty. 2012 Mar;27(3):430-436.e1. doi: 10.1016/j.arth.2011.06.035. Epub 2011 Oct 13.
PMID: 22000572BACKGROUNDAlmangoush A, Herrington L, Attia I, Jones R, Aldawoudy A, Abdul Aziz A, Waley A. Cross-cultural adaptation, reliability, internal consistency and validation of the Arabic version of the knee injury and osteoarthritis outcome score (KOOS) for Egyptian people with knee injuries. Osteoarthritis Cartilage. 2013 Dec;21(12):1855-64. doi: 10.1016/j.joca.2013.09.010. Epub 2013 Oct 2.
PMID: 24095836BACKGROUNDRoos EM, Roos HP, Lohmander LS, Ekdahl C, Beynnon BD. Knee Injury and Osteoarthritis Outcome Score (KOOS)--development of a self-administered outcome measure. J Orthop Sports Phys Ther. 1998 Aug;28(2):88-96. doi: 10.2519/jospt.1998.28.2.88.
PMID: 9699158BACKGROUNDAhmed KM, Said HG, Ramadan EKA, Abd El-Radi M, El-Assal MA. Arabic translation and validation of three knee scores, Lysholm Knee Score (LKS), Oxford Knee Score (OKS), and International Knee Documentation Committee Subjective Knee Form (IKDC). SICOT J. 2019;5:6. doi: 10.1051/sicotj/2018054. Epub 2019 Mar 8.
PMID: 30848244BACKGROUNDDawson J, Fitzpatrick R, Murray D, Carr A. Questionnaire on the perceptions of patients about total knee replacement. J Bone Joint Surg Br. 1998 Jan;80(1):63-9. doi: 10.1302/0301-620x.80b1.7859.
PMID: 9460955BACKGROUNDMacDessi SJ, Griffiths-Jones W, Harris IA, Bellemans J, Chen DB. Coronal Plane Alignment of the Knee (CPAK) classification. Bone Joint J. 2021 Feb;103-B(2):329-337. doi: 10.1302/0301-620X.103B2.BJJ-2020-1050.R1.
PMID: 33517740BACKGROUNDVendittoli PA, Martinov S, Blakeney WG. Restricted Kinematic Alignment, the Fundamentals, and Clinical Applications. Front Surg. 2021 Jul 20;8:697020. doi: 10.3389/fsurg.2021.697020. eCollection 2021.
PMID: 34355018BACKGROUNDHutt JR, LeBlanc MA, Masse V, Lavigne M, Vendittoli PA. Kinematic TKA using navigation: Surgical technique and initial results. Orthop Traumatol Surg Res. 2016 Feb;102(1):99-104. doi: 10.1016/j.otsr.2015.11.010. Epub 2016 Jan 6.
PMID: 26776100BACKGROUNDRanawat AS, Ranawat CS, Elkus M, Rasquinha VJ, Rossi R, Babhulkar S. Total knee arthroplasty for severe valgus deformity. J Bone Joint Surg Am. 2005 Sep;87 Suppl 1(Pt 2):271-84. doi: 10.2106/JBJS.E.00308.
PMID: 16140800BACKGROUNDHowell SM, Howell SJ, Hull ML. Assessment of the radii of the medial and lateral femoral condyles in varus and valgus knees with osteoarthritis. J Bone Joint Surg Am. 2010 Jan;92(1):98-104. doi: 10.2106/JBJS.H.01566.
PMID: 20048101BACKGROUNDBellemans J, Colyn W, Vandenneucker H, Victor J. The Chitranjan Ranawat award: is neutral mechanical alignment normal for all patients? The concept of constitutional varus. Clin Orthop Relat Res. 2012 Jan;470(1):45-53. doi: 10.1007/s11999-011-1936-5.
PMID: 21656315BACKGROUNDNam D, Nunley RM, Barrack RL. Patient dissatisfaction following total knee replacement: a growing concern? Bone Joint J. 2014 Nov;96-B(11 Supple A):96-100. doi: 10.1302/0301-620X.96B11.34152.
PMID: 25381418BACKGROUNDBourne RB, Chesworth BM, Davis AM, Mahomed NN, Charron KD. Patient satisfaction after total knee arthroplasty: who is satisfied and who is not? Clin Orthop Relat Res. 2010 Jan;468(1):57-63. doi: 10.1007/s11999-009-1119-9.
PMID: 19844772BACKGROUNDCollins M, Lavigne M, Girard J, Vendittoli PA. Joint perception after hip or knee replacement surgery. Orthop Traumatol Surg Res. 2012 May;98(3):275-80. doi: 10.1016/j.otsr.2011.08.021. Epub 2012 Mar 28.
PMID: 22459101BACKGROUNDBlakeney W, Clement J, Desmeules F, Hagemeister N, Riviere C, Vendittoli PA. Kinematic alignment in total knee arthroplasty better reproduces normal gait than mechanical alignment. Knee Surg Sports Traumatol Arthrosc. 2019 May;27(5):1410-1417. doi: 10.1007/s00167-018-5174-1. Epub 2018 Oct 1.
PMID: 30276435BACKGROUNDAlmaawi AM, Hutt JRB, Masse V, Lavigne M, Vendittoli PA. The Impact of Mechanical and Restricted Kinematic Alignment on Knee Anatomy in Total Knee Arthroplasty. J Arthroplasty. 2017 Jul;32(7):2133-2140. doi: 10.1016/j.arth.2017.02.028. Epub 2017 Feb 20.
PMID: 28302462BACKGROUNDCherian JJ, Kapadia BH, Banerjee S, Jauregui JJ, Issa K, Mont MA. Mechanical, Anatomical, and Kinematic Axis in TKA: Concepts and Practical Applications. Curr Rev Musculoskelet Med. 2014 Jun;7(2):89-95. doi: 10.1007/s12178-014-9218-y.
PMID: 24671469BACKGROUNDRiviere C, Iranpour F, Harris S, Auvinet E, Aframian A, Chabrand P, Cobb J. The kinematic alignment technique for TKA reliably aligns the femoral component with the cylindrical axis. Orthop Traumatol Surg Res. 2017 Nov;103(7):1069-1073. doi: 10.1016/j.otsr.2017.06.016. Epub 2017 Sep 1.
PMID: 28870873BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Sohibe A Ghietah, Specialist
Assiut University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Doctor
Study Record Dates
First Submitted
December 5, 2024
First Posted
December 10, 2024
Study Start
February 1, 2025
Primary Completion (Estimated)
June 1, 2026
Study Completion (Estimated)
June 1, 2027
Last Updated
December 19, 2024
Record last verified: 2024-12