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assessment anterior cross ligament

Alon Rabin, Sigal Portnoy, Zvi Kozol
Study Design Cross-sectional. Background Altered hip and knee kinematics have been associated with several knee disorders including anterior cruciate ligament tear, patellofemoral pain, and iliotibial band syndrome. Limited ankle dorsiflexion (DF) range of motion (ROM), which has been linked with some of these disorders, has also been associated with altered knee kinematics. Objective Explore the association of ankle DF ROM with hip and knee kinematics during a step down task. Methods Thirty healthy participants underwent a 3-dimensional analysis of hip and knee kinematics during a lateral step down test, followed by measurement of ankle DF ROM in weight-bearing (WB) and non-weight-bearing (NWB)...
September 29, 2016: Journal of Orthopaedic and Sports Physical Therapy
C Aulin, P Lundbäck, K Palmblad, L Klareskog, H Erlandsson Harris
OBJECTIVE: To explore the possibility of cartilage protection in osteoarthritis (OA) by intraarticular injection of a chemically modified hyaluronan (HA) gel and investigate whether the chemical modifications provide intrinsic anti-inflammatory activity. METHOD: OA was induced in C57BL/6 mice by anterior cruciate ligament transection (ACLT) and HA gel or carbazate-modified component was injected intra-articularly. Assessment of cartilage rescue was performed by histology, immunohistochemistry and TUNEL analysis...
August 29, 2016: Osteoarthritis and Cartilage
Gulcan Harput, Burak Ulusoy, Hamza Ozer, Gul Baltaci, Jim Richards
BACKGROUND: The objectives of this study were to investigate the effects of knee brace (KB) and kinesiotaping (KT) on functional performance and self-reported function in individuals six months post-ACLR who desired to return to their pre-injury activity levels but felt unable to do so due to kinesiophobia. METHODS: This was a cross-sectional study involving 30 individuals six months post-ACLR with Tampa Kinesiophobia Scores >37. Individuals were tested under three conditions: no intervention, KB and KT in a randomized order...
October 2016: Knee
Jeff Leiter, Mohamed Elkurbo, Sheila McRae, James Chiu, Warren Froese, Peter MacDonald
PURPOSE: Large variation in tendon size between individuals makes hamstring graft diameter for anterior cruciate ligament (ACL) reconstruction unpredictable. Inadequate graft diameter may necessitate an alternative source of tissue requiring pre-operative planning. The purpose of this study was to determine whether magnetic resonance image (MRI) measurements and clinical anthropometric data are predictive of hamstring tendon graft diameter. METHODS: Data from 109 patients having ACL reconstruction with semitendinosus-gracilis (STGT) autograft were retrospectively evaluated...
July 20, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Hsin-Min Wang, Sandra J Shultz, Randy J Schmitz
CONTEXT: Greater anterior knee laxity (AKL) has been identified as an anterior cruciate ligament (ACL) injury risk factor. The structural factors that contribute to greater AKL are not fully understood but may include the ACL and bone geometry. OBJECTIVE: To determine the relationship of ACL width and femoral notch angle to AKL. DESIGN: Cross-sectional study. SETTING: Controlled laboratory. PATIENTS OR OTHER PARTICIPANTS: Twenty recreationally active females (age = 21...
June 2, 2016: Journal of Athletic Training
Aristides I Cruz, Nikita Lakomkin, Peter D Fabricant, J Todd R Lawrence
BACKGROUND: Most studies examining the safety and efficacy of transphyseal anterior cruciate ligament (ACL) reconstruction for skeletally immature patients utilize transtibial drilling. Independent femoral tunnel drilling may impart a different pattern of distal femoral physeal involvement. PURPOSE: To radiographically assess differences in distal femoral physeal disruption between transtibial and independent femoral tunnel drilling. We hypothesized that more oblique tunnels associated with independent drilling involve a significantly larger area of physeal disruption compared with vertically oriented tunnels...
June 2016: Orthopaedic Journal of Sports Medicine
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
Hongshi Huang, Dongxia Zhang, Yanfang Jiang, Jie Yang, Tao Feng, Xi Gong, Jianquan Wang, Yingfang Ao
AIMS: To translate the English version of Tegner Activity Score into a Simplified-Chinese version (Tegner-C) and evaluate its psychometric properties. METHODS: Tegner-C was cross-culturally adapted according to established guidelines. The validity and reliability of Tegner-C were assessed in 78 participants, with 19-20 participants in each of the four groups: before anterior cruciate ligament reconstruction (pre-ACLR) group, 2-3 months after ACLR group, 3-12 months after ACLR group, and healthy control group...
2016: PloS One
Gema Chamorro-Moriana, Carmen Ridao-Fernández, Joaquín Ojeda, Marisa Benítez-Lugo, José Luis Sevillano
OBJECTIVE: The aim of this study was to design and validate a functional assessment scale for assisted gait with forearm crutches (Chamorro Assisted Gait Scale-CHAGS) and to assess its reliability in people with sprained ankles. DESIGN: Thirty subjects who suffered from sprained ankle (anterior talofibular ligament first and second degree) were included in the study. A modified Delphi technique was used to obtain the content validity. The selected items were: pelvic and scapular girdle dissociation(1), deviation of Center of Gravity(2), crutch inclination(3), steps rhythm(4), symmetry of step length(5), cross support(6), simultaneous support of foot and crutch(7), forearm off(8), facing forward(9) and fluency(10)...
2016: PloS One
Sarah H Ward, Alan Pearce, Kim L Bennell, Brian Peitrosimone, Adam L Bryant
BACKGROUND: Altered quadriceps corticomotor excitability has been demonstrated following anterior cruciate ligament (ACL) injury and reconstruction, however only the single joint vasti muscles have been assessed. There is no current data on rectus femoris corticomotor excitability following ACL injury, the biarticular quadriceps muscle also critical for force attenuation and locomotion. The purpose of this study was to examine rectus femoris corticomotor excitability, intracortical inhibition and cortical motor representation in individuals with and without an ACL injury...
August 2016: Knee
Brian G Pietrosimone, J Troy Blackburn, Yvonne M Golightly, Matthew S Harkey, Brittney A Luc, J D DeFreese, Darin A Padua, Joanne M Jordan, Kim L Bennell
CONTEXT:  Posttraumatic osteoarthritis (PTOA) is a specific phenotype of osteoarthritis (OA) that commonly develops after acute knee injury, such as anterior cruciate ligament (ACL) or meniscal injury (or both). Athletic trainers (ATs) are well positioned to educate patients and begin PTOA management during rehabilitation of the acute injury, yet it remains unknown if ATs currently prioritize long-term outcomes in patients with knee injury. OBJECTIVE:  To investigate ATs' knowledge and perceptions of OA and its treatment after ACL injury, ACL reconstruction, or meniscal injury or surgery...
May 4, 2016: Journal of Athletic Training
Colin Russell, Valentina Pedoia, Keiko Amano, Hollis Potter, Sharmila Majumdar
In this multi-center study, voxel-based relaxometry (VBR), a novel technique to automatically quantify localized cartilage change, was used to investigate T1ρ and T2 relaxation times of patients with anterior cruciate ligament (ACL) tears at the time of injury and 6 months after reconstructive surgery. 64 ACL-injured patients from 3 sites underwent bilateral 3T MR T1ρ and T2 mapping; 56 patients returned 6 months after surgery. Cross-sectional and longitudinal VBR comparisons of relaxation times were calculated...
May 2, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Eva Ageberg, Ewa M Roos
Study Design Cross-sectional. Background The association between muscle function and lack of knee confidence in people with anterior cruciate ligament (ACL) injury has not been well investigated. Such knowledge would help in the design of training programs for this population. Objective To investigate associations between self-reported knee confidence and muscle function in patients with ACL injury. Methods Cross-sectional data from 54 patients (mean age, 30 years; range, 20-39 years; 28% women) with ACL injury, treated with training and reconstructive surgery (n = 36) or training only (n = 18), were assessed 3 ± 1 years after injury...
June 2016: Journal of Orthopaedic and Sports Physical Therapy
Zhiwei Zhang, Xiaochun Wei, Jizong Gao, Yu Zhao, Yamin Zhao, Li Guo, Chongwei Chen, Zhiqing Duan, Pengcui Li, Lei Wei
Cross-linked hyaluronic acid hydrogel (cHA gel) and dexamethasone (Dex) have been used to treat knee osteoarthritis (OA) in clinical practice owing to their chondroprotective and anti-inflammatory effects, respectively. The aim of the present study was to compare the treatment effects of the cHA gel pre-mixed with/without Dex in a surgery-induced osteoarthritis model in rats. Anterior cruciate ligament transection (ACLT) surgery was performed on the right knee of rats to induce OA. Male 2-month-old Sprague-Dawley rats were randomly divided into five groups (n = 10/per group): (1) ACLT + saline; (2) ACLT + cHA gel; (3) ACLT + cHA-Dex (0...
2016: International Journal of Molecular Sciences
Todd P Pierce, Kimona Issa, Anthony Festa, Anthony J Scillia, Vincent K McInerney
BACKGROUND: Anterior cruciate ligament reconstruction is becoming more common in skeletally immature individuals, and it may be performed with transphyseal or physeal-sparing techniques. A number of studies have assessed the outcomes of these techniques, but there is a need to systematically evaluate the pooled data from these studies. PURPOSE: To compare the differences in demographics and outcomes of transphyseal and physeal-sparing techniques by assessing (1) demographics, (2) incidence of growth disturbances, and (3) graft survivorship in the pediatric population...
April 4, 2016: American Journal of Sports Medicine
Adam G Culvenor, Bryce C Alexander, Ross A Clark, Natalie J Collins, Eva Ageberg, Hayden G Morris, Timothy S Whitehead, Kay M Crossley
Study Design Cross-sectional, controlled laboratory study. Background Postural control following anterior cruciate ligament reconstruction (ACLR) primarily has been investigated during static single-leg balance tasks. Little is known about dynamic postural control deficits post-ACLR. Objectives To compare dynamic postural control (bilaterally) in individuals who have undergone ACLR and in healthy controls, and to evaluate the relationship between dynamic postural control and self-reported and objective function...
May 2016: Journal of Orthopaedic and Sports Physical Therapy
Josef Christian, Josef Kröll, Gerda Strutzenberger, Nathalie Alexander, Michael Ofner, Hermann Schwameder
BACKGROUND: Gait analysis is a useful tool to evaluate the functional status of patients with anterior cruciate ligament injury. Pattern recognition methods can be used to automatically assess walking patterns and objectively support clinical decisions. This study aimed to test a pattern recognition system for analyzing kinematic gait patterns of recently anterior cruciate ligament injured patients and for evaluating the effects of a therapeutic treatment. METHODS: Gait kinematics of seven male patients with an acute unilateral anterior cruciate ligament rupture and seven healthy males were recorded...
March 2016: Clinical Biomechanics
Sven Shafizadeh, Vera Jaecker, Robin Otchwemah, Marc Banerjee, Jan-Hendrik Naendrup
INTRODUCTION: Reconstruction of the anterior cruciate ligament (ACL) is characterized by a variety of possibilities concerning its implementation. Different choices for grafts, fixation methods and tunnel positioning, as well as diverse technical tools are available and have clinical significance. Besides specific pre- and post-operative procedures, different indications for surgery and further surgeon-/clinic-related factors add variability to the treatment. In response to the lack of descriptive statistics about the implementation of these factors and the increasing numbers of ACL reconstructions this study has been conducted to display the current state of the treatment for ACL tears throughout Germany...
May 2016: Archives of Orthopaedic and Trauma Surgery
Francesco Falciglia, Alfredo Schiavone Panni, Marco Giordano, Angelo Gabriele Aulisa, Vincenzo Guzzanti
PURPOSE: Management of anterior cruciate ligament injuries in skeletally immature patients (in Tanner stages 2 and 3) is controversial. Conventional reconstruction used in adults can cause iatrogenic growth disturbance due to physeal damage, and studies that report long-term results using a specific technique are scarce. The aim of this study is to evaluate in a large series the mid- and long-term results of a partial transphyseal technique and define the safe percentage of lesions of the femoral growth plate...
March 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Rakesh John, Mandeep Singh Dhillon, Siddhartha Sharma, Sharad Prabhakar, Mohit Bhandari
BACKGROUND: Injuries to the anterior cruciate ligament (ACL) are among the most common knee ligament injuries and frequently warrant reconstruction. The etiopathogenesis of these injuries has focused mainly on mechanism of trauma, patient sex, and anatomic factors as predisposing causes. Several genetic factors that could predispose to an ACL tear have recently been reported. PURPOSE: This systematic review summarizes the current evidence for a genetic predisposition to ACL tears...
February 3, 2016: American Journal of Sports Medicine
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