Standard ACL Reconstruction vs ACL + Lateral Extra-Articular Tenodesis Study
STAbiLiTY
Multicenter Randomized Clinical Trial Comparing Anterior Cruciate Ligament Reconstruction With and Without Lateral Extra-articular Tenodesis in Individuals Who Are At High Risk of Graft Failure.
1 other identifier
interventional
624
3 countries
8
Brief Summary
The purpose of this study is to compare outcomes (failure, function, strength, range of motion and quality of life) between patients who receive the usual anterior cruciate ligament (ACL) reconstructive surgery and patients who receive anterior cruciate ligament reconstructive surgery with a lateral extra-articular tenodesis (extra tendon repair on the outside of the knee). Some studies have shown high graft failure rates (ACL re-tear) in young individuals who return to pivoting contact sports following ACL reconstruction. This study is designed to look at whether or not adding this extra tendon repair reduces the risk of graft failure in this population.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2014
Longer than P75 for not_applicable
8 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 2, 2013
CompletedFirst Posted
Study publicly available on registry
December 23, 2013
CompletedStudy Start
First participant enrolled
January 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2025
CompletedJanuary 8, 2024
January 1, 2024
11.2 years
December 2, 2013
January 4, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Graft Failure
* symptomatic instability requiring revision ACL surgery * positive pivot shift or asymmetrical pivot shift greater than other contralateral side We will determine the absolute risk of graft failure in each group, calculate a relative risk (RR) and risk difference (RD) of graft failure with 95% confidence intervals around the estimate and use a Mantel Haentzel Test (random effect of surgeon) to determine the significance of the association between the addition of LET and graft failure rates. We will calculate the number needed to treat (NNT) to describe the number of patients who need to receive LET to prevent one graft failure over the first two postoperative years.
24 months
Secondary Outcomes (7)
Disease-specific quality of life using the ACL Quality of Life Questionnaire (ACL-QOL)
Baseline, 3, 6, 12, 24 months
Region-specific quality of life using the Knee Osteoarthritis and outcomes Score (KOOS).
Baseline, 3, 6, 12, 24 months
MARX Activity Rating Scale
Baseline, 3, 6, 12, 24 months
Passive knee extension and active-assisted knee flexion
Baseline, 3, 6, 12, 24 months
Quality-adjusted life years (QALYs) using the European Quality of Life Scale (Euro-QoL)
Baseline, 3, 6, 12, 24 months
- +2 more secondary outcomes
Study Arms (2)
ACL Reconstruction
ACTIVE COMPARATORStandard ACL reconstruction only.
ACL + LET
EXPERIMENTALAnatomic ACL reconstruction following the same procedure as the active comparator group with an added lateral extra-articular tenodesis (LET).
Interventions
Lateral extra-articular tenodesis: A 1cm wide x 8cm long strip of iliotibial band is fashioned, leaving the Gerdys tubercle attachment intact. The graft is tunneled under the fibular collateral ligament (FCL) and attached to the femur with a Richards' staple (Smith \& Nephew), just distal to the intermuscular septum, proximal to the femoral insertion of the FCL. Fixation is performed with the knee at 70 degrees flexion, neutral rotation. Minimal tension is applied to the graft. The free end is then looped back onto itself and sutured using the No. 1 vicryl.
Anatomic ACL reconstruction using a four-strand autologous hamstring graft. If the diameter of the graft is found to be less than 7.5mm, semitendinosus will be tripled (5 strand graft) providing a greater graft diameter. Femoral tunnels will be drilled using an anteromedial portal technique, with femoral fixation provided by an Endobutton or equivalent. Tibial fixation will be provided by interference screw.
Eligibility Criteria
You may qualify if:
- ACL deficient knee
- skeletally mature to 25 years of age
- or more of:
- competitive pivoting sport
- grade 2 pivot shift or greater
- generalized ligament laxity - Beighton score of 4 or greater
You may not qualify if:
- previous ACL reconstruction on either knee
- multi-ligament injury (two or more ligaments requiring surgical attention)
- symptomatic articular cartilage defect requiring treatment other than debridement
- greater than 3 degrees of asymmetric varus
- unable to complete outcome questionnaires
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (8)
Antwerp Orthopedic Center
Antwerp, 2018, Belgium
Banff Sport Medicine Clinic
Banff, Alberta, T1L 1B3, Canada
Fraser Health Authority
New Westminster, British Columbia, V3L 5P5, Canada
Pan Am Clinic
Winnipeg, Manitoba, R3M 3E4, Canada
McMaster University
Hamilton, Ontario, L8N 3Z5, Canada
Queen's University
Kingston, Ontario, K7L 2V7, Canada
Fowler Kennedy Sport Medicine Clinic
London, Ontario, N6A 3K7, Canada
University Hospitals Coventry and Warwickshire NHS Trust
Coventry, CV2 2DX, United Kingdom
Related Publications (5)
Nakanishi Y, Hegarty P, Vivacqua T, Firth A, Milner JS, Pritchett S, Willits K, Litchfield R, Bryant D, Getgood AMJ. Quantitative MRI Analysis of Patellofemoral Joint Cartilage Health 2 Years After Anterior Cruciate Ligament Reconstruction and Lateral Extra-Articular Tenodesis. Am J Sports Med. 2024 Jun;52(7):1773-1783. doi: 10.1177/03635465241248642. Epub 2024 May 25.
PMID: 38794906DERIVEDMarmura H, Tremblay PF, Getgood AMJ, Bryant DM. A bifactor model supports unidimensionality of the International Knee Documentation Committee Subjective Knee Form in young active patients with anterior cruciate ligament tears: a retrospective analysis of a randomized controlled trial. Health Qual Life Outcomes. 2023 Sep 12;21(1):104. doi: 10.1186/s12955-023-02186-y.
PMID: 37697331DERIVEDMarmura H, Getgood AMJ, Spindler KP, Kattan MW, Briskin I, Bryant DM. Validation of a Risk Calculator to Personalize Graft Choice and Reduce Rupture Rates for Anterior Cruciate Ligament Reconstruction. Am J Sports Med. 2021 Jun;49(7):1777-1785. doi: 10.1177/03635465211010798. Epub 2021 May 4.
PMID: 33945339DERIVEDGetgood AMJ, Bryant DM, Litchfield R, Heard M, McCormack RG, Rezansoff A, Peterson D, Bardana D, MacDonald PB, Verdonk PCM, Spalding T; STABILITY Study Group; Willits K, Birmingham T, Hewison C, Wanlin S, Firth A, Pinto R, Martindale A, O'Neill L, Jennings M, Daniluk M, Boyer D, Zomar M, Moon K, Pritchett R, Payne K, Fan B, Mohan B, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Howells F, Tough M, Spalding T, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Millan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Declercq G, Vuylsteke K, Van Haver M. Lateral Extra-articular Tenodesis Reduces Failure of Hamstring Tendon Autograft Anterior Cruciate Ligament Reconstruction: 2-Year Outcomes From the STABILITY Study Randomized Clinical Trial. Am J Sports Med. 2020 Feb;48(2):285-297. doi: 10.1177/0363546519896333. Epub 2020 Jan 15.
PMID: 31940222DERIVEDGetgood A, Bryant D, Firth A; Stability Group. The Stability study: a protocol for a multicenter randomized clinical trial comparing anterior cruciate ligament reconstruction with and without Lateral Extra-articular Tenodesis in individuals who are at high risk of graft failure. BMC Musculoskelet Disord. 2019 May 15;20(1):216. doi: 10.1186/s12891-019-2589-x.
PMID: 31092226DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
Alan Getgood, MD
University of Western Ontario, Canada
- STUDY DIRECTOR
Dianne Bryant, Phd
University of Western Ontario, Canada
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 2, 2013
First Posted
December 23, 2013
Study Start
January 1, 2014
Primary Completion
March 1, 2025
Study Completion
March 1, 2025
Last Updated
January 8, 2024
Record last verified: 2024-01