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ACL reconstruction and quadriceps

Yuya Ueda, Takehiko Matsushita, Daisuke Araki, Akihiro Kida, Kohei Takiguchi, Yohei Shibata, Kumiko Ono, Rei Ono, Tomoyuki Matsumoto, Koji Takayama, Yoshitada Sakai, Masahiro Kurosaka, Ryosuke Kuroda
PURPOSE: Patients typically return to sports activities 6-12 months after anterior cruciate ligament (ACL) reconstruction, and quadriceps strength has been used as one of the criteria to return to sports activities. The purpose of this study is to identify the factors that affect quadriceps strength recovery after ACL reconstruction with a hamstring tendon autograft 6 months after surgery. METHODS: Isokinetic quadriceps strength at 60°/s was measured preoperatively and 6 months after surgery in 193 athletes who underwent ACL reconstruction with a hamstring tendon autograft...
August 23, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Nicky van Melick, Robert E H van Cingel, Frans Brooijmans, Camille Neeter, Tony van Tienen, Wim Hullegie, Maria W G Nijhuis-van der Sanden
AIM: The Royal Dutch Society for Physical Therapy (KNGF) instructed a multidisciplinary group of Dutch anterior cruciate ligament (ACL) experts to develop an evidence statement for rehabilitation after ACL reconstruction. DESIGN: Clinical practice guideline underpinned by systematic review and expert consensus. DATA SOURCES: A multidisciplinary working group and steering group systematically reviewed the literature and wrote the guideline...
August 18, 2016: British Journal of Sports Medicine
Matthew J Jordan, Per Aagaard, Walter Herzog
PURPOSE: The acute effects of fatigue on functional inter-limb asymmetry and quadriceps/hamstring muscle activity levels including preparatory co-activation during squat jump takeoff and landing was evaluated in elite alpine ski racers with/without anterior cruciate ligament (ACL) reconstruction (ACLR). METHODS: Twenty-two elite ski racers (ACLR: n=11; Control: n=11) performed an 80-second repeated squat jump test (jump-test) on a dual force plate system with simultaneous electromyography (EMG) recordings in vastus lateralis (VL), vastus medialis (VM), semitendinosus (ST) and biceps femoris (BF)...
August 17, 2016: Medicine and Science in Sports and Exercise
Daniel K Schneider, Alli Gokeler, Bert Otten, Kevin R Ford, Timothy E Hewett, Jon Divine, Angelo J Colosimo, Robert S Heidt, Gregory D Myer
A mass-spring-damper model may serve as an extension of biomechanical data from three-dimensional motion analysis and epidemiological data which help to delineate populations at-risk for anterior cruciate ligament (ACL) injuries. The purpose of this study was to evaluate such a model.\Thirty-six ACL reconstruction (ACLR) group subjects and 67 controls (CTRL) completed single-leg drop landing and single-leg broad jump tasks. Landing ground reaction force data were collected and analyzed with a mass-spring damper model...
July 19, 2016: Journal of Strength and Conditioning Research
Matthew S Harkey, Brittney A Luc-Harkey, Adam S Lepley, Terry L Grindstaff, Phillip Gribble, J Troy Blackburn, Jeffrey T Spang, Brian Pietrosimone
PURPOSE: Persistent voluntary quadriceps activation deficits are common following anterior cruciate ligament reconstruction (ACLR), but the direct causes are unclear. The primary purpose of this study was to determine whether spinal reflex excitability deficits are present in individuals with a history of ACLR, and secondarily to determine if spinal reflex excitability predicts which individuals possess full voluntary quadriceps activation. METHODS: One hundred and forty-seven individuals (74 Healthy and 73 ACLR) participated in this cross-sectional, case-control study...
July 18, 2016: Medicine and Science in Sports and Exercise
Silvia Ortega-Cebrian, Nicolleta Luchini, Rodney Whiteley
BACKGROUND: Dry needling (DN) is reported to decrease pain and improve functional movements yet the mechanisms remain unclear. Changes in muscle tone and other mechanical properties after DN could contribute to these findings but have not been investigated. OBJECTIVES: Examine EMG and passive mechanical properties of the quadriceps muscle before and after DN. DESIGN: EMG, MyotonPro and clinical measurements were taken pre and post DN. SETTING: Rehabilitation department at Aspetar Sports Medicine Hospital, Qatar...
September 2016: Physical Therapy in Sport
Alli Gokeler, Wouter Welling, Stefano Zaffagnini, Romain Seil, Darin Padua
PURPOSE: There is a lack of consensus regarding the appropriate criteria for releasing patients to return to sports (RTS) after anterior cruciate ligament reconstruction (ACLR). A test battery was developed to support decision-making. METHODS: Twenty-eight patients (22 males and 6 females) with a mean age of 25.4 ± 8.2 years participated and were 6.5 ± 1.0 months post-ACLR. All patients followed the same rehabilitation protocol. The test battery used consisted of the following: isokinetic test, 3 hop tests and the jump-landing task assessed with the LESS...
July 16, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Juan Antonio Luque-Seron, Ivan Medina-Porqueres
CONTEXT: Distinct exercises have been proposed for knee rehabilitation after anterior cruciate ligament (ACL) reconstruction. There is a need to understand ACL strain behavior during different rehabilitation exercises to protect the graft from excessive strain that could interfere with its healing process. OBJECTIVE: To critically review studies that directly measured normal ACL strain in vivo during different movements, conditions, or exercises to gain insight into which of them may produce more strain on the ligament or the ligament graft in the case of reconstructed knees...
September 2016: Sports Health
Joon Kyu Lee, Sahnghoon Lee, Myung Chul Lee
BACKGROUND: The choice of graft type is an important factor to the outcome of anterior cruciate ligament (ACL) reconstruction. PURPOSE: To compare knee joint stability and functional outcomes of anatomic ACL reconstruction with double-bundle hamstring tendon (DBHT) and bone-quadriceps tendon (BQT) autografts. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Ninety-six patients underwent ACL reconstruction with either DBHT (hamstring group) or BQT autograft (quadriceps group)...
September 2016: American Journal of Sports Medicine
Robert A Magnussen, Kristy Pottkotter, Stephanie Di Stasi, Mark V Paterno, Samuel C Wordeman, Laura C Schmitt, David C Flanigan, Christopher C Kaeding, Timothy E Hewett
Femoral nerve block (FNB) has been proposed for pain control following anterior cruciate ligament (ACL) reconstruction. Although numerous studies have assessed the efficacy of FNBs, there has been little to no research into the effect of such blocks on postoperative strength and patient-reported outcomes. We hypothesized that performance of an FNB would result in decreased quadriceps strength and poorer patient-reported outcome scores within the first 6 months following ACL reconstruction. A total of 30 patients scheduled to undergo hamstring autograft ACL reconstruction following an acute ACL injury were randomized to a single-shot FNB group or a control group...
June 30, 2016: Journal of Knee Surgery
Christopher Kuenze, Adam Kelly, Moataz Eltoukhy
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Tory Blackburn, Brian Pietrosimone, Matthew Harkey, Brittney Luc, Derek Pamukoff
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Gulcan Harput, Burak Ulusoy, Hamza Ozer, Gul Baltaci
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Kelechi R Okoroha, Robert A Keller, Nathan E Marshall, Edward K Jung, Nima Mehran, Eric Owashi, Vasilios Moutzouros
PURPOSE: To compare femoral nerve block (FNB) versus local liposomal bupivacaine (LB) for pain control in patients undergoing anterior cruciate ligament (ACL) reconstruction. METHODS: Eighty-five patients undergoing primary ACL reconstruction were assessed for participation. We performed a prospective randomized trial in accordance with the CONSORT (Consolidated Standards of Reporting Trials) 2010 statement. The study arms included either intraoperative local infiltration of LB (20 mL of bupivacaine/10 mL of saline solution) or preoperative FNB with a primary outcome of postoperative pain levels (visual analog scale) for 4 days...
September 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Ravi Gupta, Dheeraj Kapoor, Love Kapoor, Anubhav Malhotra, Gladson David Masih, Anil Kapoor, Shweta Joshi
BACKGROUND: Pain in the immediate post-operative period after anterior cruciate ligament (ACL) surgery, apart from an unpleasant experience for the patient, can act as a barrier for static quadriceps contractions and optimum execution of the initial rehabilitation protocol resulting in slow recovery and a later return to full function for a sportsperson. There is no report in the literature comparing pain in the immediate post-operative period after using the two most widely used autografts, bone patellar tendon bone (BPTB) graft and hamstring graft...
2016: Journal of Orthopaedic Surgery and Research
Christin Zwolski, Laura C Schmitt, Staci Thomas, Timothy E Hewett, Mark V Paterno
BACKGROUND: The incidence of contralateral anterior cruciate ligament (ACL) injury after ACL reconstruction (ACLR) is high. Often, return-to-sport (RTS) tests of strength and functional hopping rely on limb symmetry indices (LSIs) to identify deficits, although the utility of these measures in athletes with bilateral ACL injuries is unknown. PURPOSE/HYPOTHESIS: The aim of this study was to investigate if LSIs used as RTS criteria in female patients after unilateral ACLR were appropriate for female patients with bilateral ACL involvement...
August 2016: American Journal of Sports Medicine
David R Bell, Stephanie M Trigsted, Eric G Post, Courtney E Walden
PURPOSE: Quadriceps strength deficits persist for years after anterior cruciate ligament (ACL) reconstruction, and patients with these deficits often shift torque demands away from the knee extensors to the hip during functional tasks. However, it is not clear how quadriceps strength deficits may affect hip strength. Therefore, the purpose of this study was to investigate differences in lower extremity strength in individuals with ACL reconstruction with differing levels of quadriceps strength asymmetry...
October 2016: Medicine and Science in Sports and Exercise
Christopher Kuenze, Moataz Eltoukhy, Adam Kelly, Chang-Young Kim
OBJECTIVES: Patients commonly experience altered response to fatiguing exercise after ACL reconstruction (ACLR). The objective of this study was to assess the impact of quadriceps strengthening on response to exercise after ACLR. DESIGN: Clinical trial. METHODS: Ten participants with a history of primary, unilateral ACLR (sex=9F/1M, age=21.0±2.8 years, BMI=23.7±2.7kg/m(2)) and 10 healthy participants (sex=9F/1M, age=22.2±3.2 years, BMI=23...
May 21, 2016: Journal of Science and Medicine in Sport
Polyvios Kyritsis, Roald Bahr, Philippe Landreau, Riadh Miladi, Erik Witvrouw
BACKGROUND: The decision as to whether or not an athlete is ready to return to sport (RTS) after ACL reconstruction is difficult as the commonly used RTS criteria have not been validated. PURPOSE: To evaluate whether a set of objective discharge criteria, including muscle strength and functional tests, are associated with risk of ACL graft rupture after RTS. MATERIALS AND METHODS: 158 male professional athletes who underwent an ACL reconstruction and returned to their previous professional level of sport were included...
August 2016: British Journal of Sports Medicine
Martin Häner, Sebastian Bierke, Wolf Petersen
PURPOSE: To evaluate the subjective outcomes, knee stability, and donor-site morbidity after revision ACL reconstruction using either autologous ipsilateral quadriceps tendon or contralateral semitendinosus-gracilis tendon. METHODS: A sample size calculation suggested that we needed 25 patients in each group to detect equality between both groups. Therefore, we evaluated 30 consecutive patients who underwent an ACL revision surgery with ipsilateral bone-quadriceps tendon grafts and 30 consecutive patients with the contralateral semitendinosus-gracilis grafts between January 2010 and December 2012...
May 18, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
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