Preservation technique of ruptured anterior cruciate ligament (ACL)

ISRCTN ISRCTN89368687
DOI https://doi.org/10.1186/ISRCTN89368687
Secondary identifying numbers N/A
Submission date
23/04/2011
Registration date
24/05/2011
Last edited
24/05/2011
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Injury, Occupational Diseases, Poisoning
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof Stefan Eggli
Scientific

Freiburgstrasse
Bern
3011
Switzerland

Email stefaneggli@sonnenhof.ch

Study information

Study designSingle-centre prospective randomised controlled study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please contact kathrinaeschlimann@sonnenhof.ch to request a patient information sheet
Scientific titleA single-centre, prospective, randomised controlled study comparing the common treatment of anterior cruciate ligament repair (semitendinosus grafting) to preservation and healing of the torn ligament using the dynamic intraligamentary stabilisation system
Study objectivesThis study compares in a prospective randomised trial a novel technique to preserve the ruptured anterior cruciate ligament in comparison to the established technique of replacing the torn ligament with a semitendinosus graft. Especially the stability of the knee is compared after 3, 6 and 12 months and the clinical outcome is measured using the IKDC and Lysholm score. The level of sportive activity is assessed according to the Tegner protocol.
Ethics approval(s)Bern Cantonal Ethics Commission (Kantonale Ethikkommission Bern) (KEK) approved on 07/03/2009, KEK Ref.-Nr. KEK-BE: 048/09
Health condition(s) or problem(s) studiedAnterior cruciate ligament (ACL) injury
Intervention100 patients are subsequently operated after ACL injury. After a prospective randomisation the patient are either treated with an established semitendinosus transplant or with the new dynamic intraligamentary stabilisation technique.

The idea of the new technique is, that the torn ligament is preserved and brought to stable healing without replacement. Thereby a spring-screw mechanism, which is implanted into the tibia pulls the knee in a constant posterior translation. This internal stabilisation of the knee enables the ligament in combination with a microfracturing of the notch and PRF (platelet rich fibrin) induction to heal. Healing is measured 3, 6 and 12 months after surgery by magnetic resonance imaging (MRI) and mechanical translation measurement of the knee. Additionaly clinical and sportive outcome is measured using the Lyshom, IKDC and Tegner score.
Intervention typeOther
Primary outcome measure1. Healing of ACL in magnetic resonance imaging (MRI)
2. Lysholm score, Tegner score, International Knee Documentation Committee (IKDC) score

Measured 3, 6 and 12 months after surgery.
Secondary outcome measures1. Length of hospital stay
2. Time of rehabilitation
3. Satisfaction with results (VAS 0: completely unsatisfied, 10: completely sastisfied)
Overall study start date01/08/2009
Completion date01/01/2012

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants100 patients
Key inclusion criteria1. Fresh ACL rupture (injury not older than 14 days)
2. Age under 45 years
3. No previous surgery on the injured knee
4. Regular participation in sports requiring pivoting of the knee joint
Key exclusion criteria1. Age over 45
2. Previous injury to that knee, injury older than 14 days
3. Non-sportive patients (Tegner score less than 3)
Date of first enrolment01/08/2009
Date of final enrolment01/01/2012

Locations

Countries of recruitment

  • Switzerland

Study participating centre

Freiburgstrasse
Bern
3011
Switzerland

Sponsor information

Swiss National Insurance Association (SUVA) (Switzerland)
Government

SUVA - Fluhmattstrasse 1
Luzern
6002
Switzerland

Email michael.braendle@sec.suva.ch
ROR logo "ROR" https://ror.org/053ae3r23

Funders

Funder type

Government

Swiss National Insurance Association (SUVA) (Switzerland)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan