Summary: A retrospective chart review of differences in maximal and reactive strength between injured and uninjured limbs of athletes who underwent isolated ACLR and those who underwent ACLR-LEAT.

Background

Recently there has been a resurgence of interest in lateral, extra-articular ITB tenodesis (LEAT) to augment ACLR in an attempt to reduce the residual laxity that may be present post isolated ACLR and subsequently improve surgical outcomes. Adding a LEAT procedure to an isolated ACLR surgery adds to the surgical morbidity and raises the concern of decreasing maximal quadriceps strength and may lead to a significant reduction in lower limb reactive strength and hence plyometric ability ahead of returning to play (RTP).

Objectives: The objective of our study was to identify differences in maximal quadriceps strength and reactive strength, with isokinetic and biomechanical 3D Laboratory testing at 6-8 months post-operatively, between athletes who undergo isolated ACLR and those who had ACLR-LEAT surgery.

Methods

This is a single surgeon, retrospective chart review of 68 athletes, matched for gender, age and activity level, who underwent isolated ACLR or ACLR-LEAT. All athletes completed their isokinetic and 3D motion capture assessments between 6 and 8 months post-operatively in our Biomechanical Laboratory. Each athlete’s isokinetic scores alongside their double leg drop jump (DLDJ) and bilateral single leg drop jump (SLDJ) results were documented and analysed.

Results

There was no statistically significant difference between the two groups for maximal quadriceps strength (P = 0.86; ) or for LSI for either muscle group (P=0.95,) . Reactive strength was significantly higher for DLDJ and bilateral SLDJ in the ACLR group (P = 0.018; P=0.009; P= 0.014).

Conclusions

In our isokinetic and biomechanical analysis we observed no statistically significant difference in the maximal strength between uninjured and injured limbs for isolated ACLR athletes and ACLR-LEAT athletes. Between 6-8 months, reactive strength was significantly higher in the isolated ACLR athletes. This is of clinical relevance for surgical decision making regarding augmenting ACLR with LEAT, as well as, prescription of plyometric end stage rehabilitation and RTP timelines.

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Outcomes Following Anterior Cruciate Ligament Reconstruction in Young Patients: An Observational Study. ePoster Presentation Kunal Mohan, MB MCh MRCSI, IRELAND David Cooper, MB MRCSI, IRELAND Niall McGoldrick, MB MCh FRCS (Tr & Orth), IRELAND Martin Davey, MB MCh MRCSI, IRELAND Megan Diack, MBCHB, MRCSI, MCh, IRELAND Paula McQuail, MB FRCSI, IRELAND Fintan J. Shannon, FRCS (Tr/Orth), IRELAND
Acl - Pcl Fixation Sequence During Multi-Ligament Knee Reconstruction Does Not Affect Knee Laxity Abstract Presentation 6 minutes Carola F. van Eck, MD, PhD, FAAOS, UNITED STATES Aly Maher Fayed, MD, EGYPT Ryo Kanto, MD, JAPAN Taylor M. Price, MS, UNITED STATES Michael Dinenna, BS, UNITED STATES Monica A. Linde, MSIE, RN, UNITED STATES Patrick J. Smolinski, PhD, UNITED STATES
Concurrent Treatment Of A Displaced Bucket Handle And Anterior Cruciate Ligament Reconstruction: A Higher Risk Of Stiffness? Abstract Presentation 5 minutes Etienne Deroche, MD, FRANCE Cécile Batailler, MD, PhD, FRANCE John Swan, MBBS, FRANCE Sebastien Lustig, MD, PhD, Prof., FRANCE Elvire Servien, MD, PhD, Prof., FRANCE
The Lateral Femoral Notch Sign Entails Increased Rotatory Laxity After Acl-Injury. Pivot Shift Quantification With Surgical Navigation System Abstract Presentation 5 minutes Gian Andrea Lucidi, MD, ITALY Piero Agostinone, MD, QATAR Stefano Di Paolo, Eng, PhD, ITALY Alberto Grassi, PhD, ITALY Luca Macchiarola, MD, ITALY Giacomo Dal Fabbro, MD, AUSTRALIA Nicola Pizza, MD, ITALY Stefano Zaffagnini, MD, Prof., ITALY
Higher Return To Pre-Injury Activity Levels Following ACL Reconstruction With Bone-Patellar Tendon-Bone Versus Hamstring Tendon Autograft In High Activity Patients: Results From The New Zealand ACL Registry Abstract Presentation 6 minutes Simon W. Young, MD, FRACS, NEW ZEALAND Richard Rahardja, MBChB, BMedSc(Hons), NEW ZEALAND Mark G. Clatworthy, FRACS, NEW ZEALAND Paul Monk, DPhil (Oxon), FRCS, NEW ZEALAND Hamish Love, FRACS, NEW ZEALAND
Factors associated with anterior cruciate ligament (ACL) reconstruction among ACL injuries in Alberta, Canada ePoster Presentation Yuba Raj Paudel, MPH, CANADA Mark F. Sommerfeldt, MD, CANADA Donald C. Voaklander, PhD, CANADA
Risk Factor Analysis for Graft Failure after Anterior Cruciate Ligament Reconstruction with or without mLET Abstract Presentation 7 minutes Filip R Hendrikx, MD, BELGIUM Koen Lagae, MD, BELGIUM Annemieke Van Haver, PhD, MSc, BELGIUM Peter Verdonk, MD, PhD, BELGIUM
Predicting Patient Lost to Follow-up in the STABILITY 1 Study: A Multi-centre, International, Randomized Controlled Trial of Young, Active Patients Undergoing Anterior Cruciate Ligament Reconstruction Abstract Presentation 6 minutes Andrew Firth, PhD, CANADA Dianne M. Bryant, PhD, CANADA Andrew Johnson, PhD, CANADA Stability Study Group, CANADA Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, QATAR

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A Comparison of Lower Limb Strength and Plyometric Ability in Athletes who underwent ACLR with Lateral Extra-Articular Ilio-Tibial Band Tenodesis when compared with Isolated ACLR Surgery. A Biomechanical Study.

A Comparison of Lower Limb Strength and Plyometric Ability in Athletes who underwent ACLR with Lateral Extra-Articular Ilio-Tibial Band Tenodesis when compared with Isolated ACLR Surgery. A Biomechanical Study.

Background

Methods

Results

Conclusions

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A Comparison of Lower Limb Strength and Plyometric Ability in Athletes who underwent ACLR with Lateral Extra-Articular Ilio-Tibial Band Tenodesis when compared with Isolated ACLR Surgery. A Biomechanical Study.

A Comparison of Lower Limb Strength and Plyometric Ability in Athletes who underwent ACLR with Lateral Extra-Articular Ilio-Tibial Band Tenodesis when compared with Isolated ACLR Surgery. A Biomechanical Study.

Background

Methods

Results

Conclusions

More ISAKOS 2021: Global Content