ACL SNNAP Trial: ACL Surgery Necessity in Non Acute Patients
ACL SNNAP
Comparison of the Clinical and Cost Effectiveness of Two Management Strategies for Non-acute Anterior Cruciate Ligament (ACL) Injury: Rehabilitation Versus Surgical Reconstruction.
1 other identifier
interventional
320
1 country
32
Brief Summary
The primary objective of this study is to determine in patients with non-acute Anterior Cruciate Ligament Deficiency (ACLD) whether a strategy of non-surgical management \[Rehabilitation\] (with option for later ACL reconstruction, only if required) is more clinically effective and cost effective than a strategy of surgical management \[Reconstruction\].
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Dec 2016
Longer than P75 for not_applicable
32 active sites
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
November 17, 2016
CompletedStudy Start
First participant enrolled
December 1, 2016
CompletedFirst Posted
Study publicly available on registry
December 2, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2022
CompletedOctober 15, 2021
November 1, 2020
4.9 years
November 17, 2016
October 14, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Knee Injury and Osteoarthritis Outcome Score (KOOS4)
The score is derived from 4 of 5 subscales; pain, symptoms, difficulty in sports and recreational activities, knee related quality of life.
18 months post randomisation
Secondary Outcomes (7)
Knee Injury and Osteoarthritis Outcome Score (KOOS)
At baseline and at 6, 12 and 18 months post randomisation
Modified Tegner scale
At baseline and at 6, 12 and 18 months post randomisation
Intervention related complications
At 6, 12 and 18 months post randomisation
EuroQol EQ-5D-5L
At baseline and at 6, 12 and 18 months post randomisation
Resource-usage data
18 months post randomisation
- +2 more secondary outcomes
Study Arms (2)
ACL Rehabilitation Group
EXPERIMENTALNon-surgical management \[Rehabilitation\] with option for later Anterior Cruciate Ligament (ACL) reconstruction, only if required.
ACL Reconstruction Group
ACTIVE COMPARATORSurgical Management - Anterior Cruciate Ligament (ACL) reconstruction surgery
Interventions
Routine ACL rehabilitation protocols used at the participating site will be followed. As part of the site selection process, documentary evidence of the use of or willingness to adopt a rehabilitation protocol that reflects the guidelines of the mandatory aims/goals set for the study rehabilitation intervention will be required.
All surgical reconstructions will be patella tendon or hamstrings tendon depending on the surgeon's preference. All other care will be routine, including immediate post-operative care.
Eligibility Criteria
You may qualify if:
- Participant is willing and able to give informed consent for participation in the study.
- Male or Female, aged 18 years or above.
- Symptomatic ACL deficiency of the native ligament1 (instability-episodes of frank giving way or feeling unstable) with ACL deficiency (either partial or complete tear) confirmed using clinical assessment and MRI scan.
You may not qualify if:
- Acute phase of primary ACL injury i.e. not recovered from any acute symptoms relating to their initial ACL injury.
- Previous knee surgery (other than diagnostic arthroscopy or partial meniscectomy) to index knee concomitant severe injury to contra-lateral knee.
- Meniscal pathology with characteristics that indicate immediate surgery i.e. locked knee, large bucket handle or complex cartilage tear producing mechanical symptoms.
- Knee joint status of grade 3 or 4 on the Kellgren and Lawrence scale,
- Grade 3 MCL/LCL injury, associated PCL/PLC injury
- Inflammatory arthropathy.
- Pregnancy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (32)
Betsi Cadwaladr University Health Board
Bangor, United Kingdom
Basildon and Thurrock University Hospitals NHS Foundation Trust
Basildon, United Kingdom
North Bristol NHS Trust
Bristol, United Kingdom
Gloucestershire Hospitals NHS Foundation Trust
Cheltenham, United Kingdom
Countess of Chester Hospital NHS Foundation Trust
Chester, United Kingdom
University Hospitals Coventry and Warwickshire NHS Trust
Coventry, United Kingdom
Frimley Health NHS Foundation Trust
Frimley, United Kingdom
Royal Surrey County Hospitals NHS Foundation Trust
Guildford, United Kingdom
Hull and East Yorkshire Hospitals NHS Trust
Hull, United Kingdom
Leeds Teaching Hospitals NHS Trust
Leeds, United Kingdom
University Hospitals of Leicester
Leicester, United Kingdom
Kings College Hospital NHS Foundation Trust
London, United Kingdom
University College London Hospitals NHS Foundation Trust
London, United Kingdom
Manchester University NHS Foundation Trust
Manchester, United Kingdom
Oxford University Hospitals NHS Foundation Trust
Oxford, United Kingdom
North West Anglia NHS Foundation Trust
Peterborough, United Kingdom
Portsmouth Hospitals NHS Trust
Portsmouth, United Kingdom
Royal Berkshire NHS Foundation Trust
Reading, United Kingdom
Salisbury NHS Foundation Trust
Salisbury, United Kingdom
Sheffield Teaching Hospitals NHS Foundation Trust
Sheffield, United Kingdom
Frimley Health NHS Foundation Trust
Slough, United Kingdom
Stockport NHS Foundation Trust
Stockport, United Kingdom
Sherwood Forest Hospitals NHS Foundation Trust
Sutton in Ashfield, United Kingdom
Abertawe Bro Morannwg University Health Board
Swansea, United Kingdom
Great Western Hospitals NHS Foundation Trust
Swindon, United Kingdom
Taunton and Somerset NHS Foundation Trust
Taunton, United Kingdom
Royal Cornwall Hospitals NHS Trust
Truro, United Kingdom
The Mid Yorkshire Hospitals NHS Trust
Wakefield, United Kingdom
Warrington and Halton Hospitals NHS Foundation Trust
Warrington, United Kingdom
Wrightington, Wigan and Leigh NHS Foundation Trust
Wigan, United Kingdom
Betsi Cadwaladr University Health Board
Wrexham, United Kingdom
Yeovil District Hospital NHS Foundation Trust
Yeovil, United Kingdom
Related Publications (3)
Beard DJ, Davies L, Cook JA, Stokes J, Leal J, Fletcher H, Abram S, Chegwin K, Greshon A, Jackson W, Bottomley N, Dodd M, Bourke H, Shirkey BA, Paez A, Lamb SE, Barker KL, Phillips M, Brown M, Lythe V, Mirza B, Carr A, Monk P, Areia CM, O'Leary S, Haddad F, Wilson C, Price A; ACL SNNAP Study Group. Comparison of surgical or non-surgical management for non-acute anterior cruciate ligament injury: the ACL SNNAP RCT. Health Technol Assess. 2024 Jun;28(27):1-97. doi: 10.3310/VDKB6009.
PMID: 38940695DERIVEDBeard DJ, Davies L, Cook JA, Stokes J, Leal J, Fletcher H, Abram S, Chegwin K, Greshon A, Jackson W, Bottomley N, Dodd M, Bourke H, Shirkey BA, Paez A, Lamb SE, Barker K, Phillips M, Brown M, Lythe V, Mirza B, Carr A, Monk P, Morgado Areia C, O'Leary S, Haddad F, Wilson C, Price A; ACL SNNAP Study Group. Rehabilitation versus surgical reconstruction for non-acute anterior cruciate ligament injury (ACL SNNAP): a pragmatic randomised controlled trial. Lancet. 2022 Aug 20;400(10352):605-615. doi: 10.1016/S0140-6736(22)01424-6.
PMID: 35988569DERIVEDDavies L, Cook J, Leal J, Areia CM, Shirkey B, Jackson W, Campbell H, Fletcher H, Carr A, Barker K, Lamb SE, Monk P, O'Leary S, Haddad F, Wilson C, Price A, Beard D. Comparison of the clinical and cost effectiveness of two management strategies (rehabilitation versus surgical reconstruction) for non-acute anterior cruciate ligament (ACL) injury: study protocol for the ACL SNNAP randomised controlled trial. Trials. 2020 May 14;21(1):405. doi: 10.1186/s13063-020-04298-y.
PMID: 32410697DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
David Beard, DPhil
University of Oxford
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
- SPONSOR
Study Record Dates
First Submitted
November 17, 2016
First Posted
December 2, 2016
Study Start
December 1, 2016
Primary Completion
November 1, 2021
Study Completion
March 1, 2022
Last Updated
October 15, 2021
Record last verified: 2020-11