NCT06726993

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

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
13mo left

Started Feb 2025

Typical duration for not_applicable

Status
not yet recruiting

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

Study Progress54%
Feb 2025Jun 2027

First Submitted

Initial submission to the registry

December 5, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 10, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

December 19, 2024

Status Verified

December 1, 2024

Enrollment Period

1.3 years

First QC Date

December 5, 2024

Last Update Submit

December 16, 2024

Conditions

Keywords

Total knee arthroplastyTKATotal knee replacementTKRRestricted kinematic alignmentrKAKinematic alignmentKAUnrestricted kinematic alignment

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

EXPERIMENTAL

reproducing 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.

Procedure: Total knee arthroplasty

Restricted kinematic alignment

EXPERIMENTAL

reproducing patient's constitutional knee anatomy within a safe range while avoiding extreme or pathological anatomies that have been demonstrated to exist.

Procedure: Total knee arthroplasty

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

Also known as: Total knee replacement
Restricted kinematic alignmentUnrestricted kinematic alignment

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

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).

    BACKGROUND
  • Risitano 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: 35812351BACKGROUND
  • Albishi 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: 37329371BACKGROUND
  • Behrend 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: 22000572BACKGROUND
  • Almangoush 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: 24095836BACKGROUND
  • Roos 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: 9699158BACKGROUND
  • Ahmed 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: 30848244BACKGROUND
  • Dawson 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: 9460955BACKGROUND
  • MacDessi 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: 33517740BACKGROUND
  • Vendittoli 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: 34355018BACKGROUND
  • Hutt 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: 26776100BACKGROUND
  • Ranawat 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: 16140800BACKGROUND
  • Howell 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: 20048101BACKGROUND
  • Bellemans 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: 21656315BACKGROUND
  • Nam 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: 25381418BACKGROUND
  • Bourne 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: 19844772BACKGROUND
  • Collins 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: 22459101BACKGROUND
  • Blakeney 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: 30276435BACKGROUND
  • Almaawi 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: 28302462BACKGROUND
  • Cherian 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: 24671469BACKGROUND
  • Riviere 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

Osteoarthritis

Interventions

Arthroplasty, Replacement, Knee

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Intervention Hierarchy (Ancestors)

Arthroplasty, ReplacementArthroplastyOrthopedic ProceduresSurgical Procedures, OperativePlastic Surgery ProceduresProsthesis Implantation

Study Officials

  • Sohibe A Ghietah, Specialist

    Assiut University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Yaser E Khalifa, Professor

CONTACT

Mohammad K Abdelnasser, Ass. Professor

CONTACT

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