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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The Use Of An Internal Brace In A Single Bundle Hamstring Graft And Its Effect On Graft Healing At 1 Year After Anterior Cruciate Ligament Reconstruction ePoster Presentation Claire Bolton, FRACS, MBBS, AUSTRALIA Brett A. Fritsch, MBBS BSc(Med), FRACS, FAOrthA, AUSTRALIA David A. Parker, MBBS, BMedSc, FRACS, AUSTRALIA Bruno M. Giuffré, MD, AUSTRALIA
Tranexamic Acid Has No Effect On Post-Operative Hemarthrosis Or Pain Control Following Acl Reconstruction Using Bone Patella Tendon Bone Autograft: A Double-Blinded Randomized Control Trial Abstract Presentation 5 minutes Jordan W Fried, BM, UNITED STATES David Bloom, BA, UNITED STATES Eoghan T. Hurley, MB, BCh, MCh, IRELAND Samuel Baron, MD, UNITED STATES Kirk Anthony Campbell, MD, UNITED STATES Eric Jason Strauss, MD Laith M. Jazrawi, MD, UNITED STATES Michael J Alaia, MD, UNITED STATES
High Rate of Initially Overlooked Kaplan Fiber Complex Injuries in Patients With Isolated Anterior Cruciate Ligament Injury Abstract Presentation 5 minutes Ryan M Bell, BS, UNITED STATES Daniel P. Berthold, Association.-Prof., GERMANY Lukas Willinger, MD, GERMANY Matthew R. Levasseur, MD, UNITED STATES Daniel Marrero, MD, UNITED STATES Lukas Nawid Muench, MD, GERMANY Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Elmar Herbst, MD, PhD, GERMANY Mark P. Cote, PT, DPT, MSCTR, UNITED STATES Robert A. Arciero, MD, UNITED STATES Cory M. Edgar, MD, PhD, UNITED STATES
Combined ACL and Anterolateral Ligament Reconstruction Confers Significantly Improved Long Term Outcomes when Compared to Isolated ACL Reconstruction: A Matched-Pair Analysis Abstract Presentation 5 minutes Adnan Saithna, MD, FRCS, UNITED STATES Ibrahim Haidar, MD, LEBANON Johnny Rayes, MD, MSc, FEBOT, CANADA Thomas Fradin, MD, FRANCE Cédric Ngbilo, MD, SWITZERLAND Benjamin Freychet, MD, FRANCE Thais Dutra Vieira, MD, FRANCE Herve Ouanezar, MD, UNITED ARAB EMIRATES Bertrand Sonnery-Cottet, MD, PhD, FRANCE
Early Return To Sport After Quadriceps Tendon Autograft ACL Reconstruction: Comparison To Bone-Patellar Tendon-Bone Autograft At A Minimum 1-Year Follow-Up ePoster Presentation Evan W. James, MD, UNITED STATES Dakota Adamec , BS , UNITED STATES Spencer Sullivan, BS, UNITED STATES Per-Henrik Randsborg, MD, PhD, NORWAY Brandon Schneider, MS, UNITED STATES Robert G. Marx, MD, UNITED STATES Answorth A. Allen, MD, UNITED STATES Frank A. Cordasco, MD, MS, UNITED STATES Benedict U. Nwachukwu, MD, MBA, UNITED STATES Danyal H. Nawabi, MD, FRCS(Orth), UNITED STATES
Value, Limitations And Recommendations For Use Of Metal-Reduction Knee MRI Sequences Following Anterior Cruciate Ligament Reconstruction Abstract Presentation 6 minutes Brandon Zhao, MD, CANADA Nabil Khan, MBChB, MMED, FCS Orth, CANADA Mark F. Sommerfeldt, MD, CANADA Anukul Panu, MD, CANADA Jacob L Jaremko, MD, PhD, CANADA Catherine May Ting Hui, MD, FRCSC, CANADA

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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