Articles

First-time patellar dislocation with resultant habitual dislocation two years later, which was not demonstrated on plain X-rays halfway: a case report

We present an instructive case of habitual left patellar dislocation in which the patella had appeared odd due to lateral tilt relative to contralateral side, but had been radiologically confirmed to be on the...

Authors: Satoshi Ohki, Hiroyuki Enomoto, Eiki Nomura, Hidenori Tanikawa, Yasuo Niki, Hideo Matsumoto, Yoshiaki Toyama and Yasunori Suda

Grip strength measurements at two different wrist extension positions in chronic lateral epicondylitis-comparison of involved vs. uninvolved side in athletes and non athletes: a case-control study

Lateral epicondylitis is a common sports injury of the elbow caused due to altered muscle activation during repetitive wrist extension in many athletic and non-athletic endeavours. The amount of muscle activit...

Authors: Arti S Bhargava, Charu Eapen and Senthil P Kumar

Medial and lateral discoid menisci: a case report

Discoid menisci on both medial and lateral tibial plateau are very rare abnormalities. We report a 44-year-old woman with bilateral medial and lateral discoid menisci. She also had anomalous insertion of disco...

Authors: Sung-Jae Kim and Andri MT Lubis

Novel strategies in tendon and ligament tissue engineering: Advanced biomaterials and regeneration motifs

Tendon and ligaments have poor healing capacity and when injured often require surgical intervention. Tissue replacement via autografts and allografts are non-ideal strategies that can lead to future problems....

Authors: Catherine K Kuo, Joseph E Marturano and Rocky S Tuan

Sudden cardiac death athletes: a systematic review

Previous events evidence that sudden cardiac death (SCD) in athletes is still a reality and it keeps challenging cardiologists. Considering the importance of SCD in athletes and the requisite for an update of ...

Authors: Marcelo Ferreira, Paulo Roberto Santos-Silva, Luiz Carlos de Abreu, Vitor E Valenti, Vanessa Crispim, Caio Imaizumi, Celso Ferreira Filho, Neif Murad, Adriano Meneghini, Andrés R Pérez Riera, Tatiana Dias de Carvalho, Luiz Carlos Marques Vanderlei, Erica E Valenti, José R Cisternas, Oseas F Moura Filho and Celso Ferreira

The incidence of total hip arthroplasty after hip arthroscopy in osteoarthritic patients

To assess the incidence of total hip arthroplasty (THA) in osteoarthritic patients who were treated by arthroscopic debridement and to evaluate factors that might influence the time interval from the first hip...

Authors: Barak Haviv and John O'Donnell

Electromyographic analysis of the three subdivisions of gluteus medius during weight-bearing exercises

Gluteus medius (GM) dysfunction is associated with many musculoskeletal disorders. Rehabilitation exercises aimed at strengthening GM appear to improve lower limb kinematics and reduce pain. However, there is ...

Authors: Kieran O'Sullivan, Sharon M Smith and David Sainsbury

Mechanics rules cell biology

Cells in the musculoskeletal system are subjected to various mechanical forces in vivo. Years of research have shown that these mechanical forces, including tension and compression, greatly influence various cell...

Authors: James HC Wang and Bin Li

Treatment of chronic anterior shoulder dislocation by open reduction and simultaneous Bankart lesion repair

Untreated chronic shoulder dislocation eventually leads to functional disability and pain. Open reduction with different fixation methods have been introduced for most chronic shoulder dislocation. We hypothes...

Authors: Alireza Rouhani and Amirmohammad Navali

Effects of methods of descending stairs forwards versus backwards on knee joint force in patients with osteoarthritis of the knee: a clinical controlled study

The aim of this study was to investigate the kinetic characteristics of compensatory backward descending movement performed by patients with osteoarthritis of the knee.

Authors: Masaki Hasegawa, Takaaki Chin, Sadaaki Oki, Shusaku Kanai, Koji Shimatani and Tomoaki Shimada

The differential effects of core stabilization exercise regime and conventional physiotherapy regime on postural control parameters during perturbation in patients with movement and control impairment chronic low back pain

The purpose of the present study was to examine the differential effect of core stability exercise training and conventional physiotherapy regime on altered postural control parameters in patients with chronic...

Authors: Ramprasad Muthukrishnan, Shweta D Shenoy, Sandhu S Jaspal, Shankara Nellikunja and Svetlana Fernandes

Functional tissue engineering of ligament healing

Ligaments and tendons are dense connective tissues that are important in transmitting forces and facilitate joint articulation in the musculoskeletal system. Their injury frequency is high especially for those...

Authors: Shan-Ling Hsu, Rui Liang and Savio LY Woo

Improvement in low back movement control, decreased pain and disability, resulting from specific exercise intervention

The study was conducted to assess whether patient-specific functional impairment and experienced daily disability improved after treatment to address active movement control of the low back.

Authors: Hannu Luomajoki, Jan Kool, Eling D de Bruin and Olavi Airaksinen

Intra-articular angiolipoma of the knee: a case report

We report a case of intra-articular angiolipoma of the knee. This case report describes our experience in excising an intra-articular angiolipoma of the knee joint. Complete resection under arthroscopy was per...

Authors: Makoto Nishimori, Masataka Deie, Nobuo Adachi, Atsushi Kanaya, Atsuo Nakamae and Mitsuo Ochi

Uncommon cause for anterior knee pain - Aggressive aneurysmal bone cyst of the patella

A 56-year-old man presented with a two month history of increasing anterior knee pain without previous trauma. As usual we recommended physiotherapy with stretching exercises of the quadriceps muscle. Since sy...

Authors: Maurice Balke, Nicolas Dedy, Jonas Mueller-Huebenthal, Dennis Liem, Jendrik Hardes and Juergen Hoeher

The kinematics of upper extremity reaching: a reliability study on people with and without shoulder impingement syndrome

Tasks chosen to evaluate motor performance should reflect the movement deficits characteristic of the target population and present an appropriate challenge for the patients who would be evaluated. A reaching ...

Authors: Jean-Sébastien Roy, Hélène Moffet, Bradford J McFadyen and Joy C MacDermid

Retear of anterior cruciate ligament grafts in female basketball players: a case series

Incidence of anterior cruciate ligament (ACL) injuries in young female basketball players is higher than that in male basketball players. Graft retears are more frequent with the increasing number of ACL recon...

Authors: Yoshinari Tanaka, Yasukazu Yonetani, Yoshiki Shiozaki, Takuya Kitaguchi, Nozomi Sato, Shinya Takeshita and Shuji Horibe

A displaced stress fracture of the femoral neck in an adolescent female distance runner with female athlete triad: A case report

This report presents a case of a displaced stress fracture of the femoral neck in an adolescent female distance runner with amenorrhea. Both reduction and internal fixation were performed early after the injur...

Authors: Shinichi Okamoto, Yuji Arai, Kunio Hara, Takashi Tsuzihara and Toshikazu Kubo

The effect of an external magnetic force on cell adhesion and proliferation of magnetically labeled mesenchymal stem cells

As the strategy for tissue regeneration using mesenchymal stem cells (MSCs) for transplantation, it is necessary that MSCs be accumulated and kept in the target area. To accumulate MSCs effectively, we develop...

Authors: Toshio Nakamae, Nobuo Adachi, Takaaki Kobayashi, Yoshihiko Nagata, Tomoyuki Nakasa, Nobuhiro Tanaka and Mitsuo Ochi

Management of Tennis Elbow with sodium hyaluronate periarticular injections

To determine the efficacy and safety of peri-articular hyaluronic acid injections in chronic lateral epicondylosis (tennis elbow).

Authors: Robert J Petrella, Anthony Cogliano, Joseph Decaria, Naem Mohamed and Robert Lee

Pattern and management of sports injuries presented by Lagos state athletes at the 16^thNational Sports Festival (KADA games 2009) in Nigeria

There is a dearth of information on the epidemiology of sports injuries in Nigeria. The study was aimed at documenting sports injuries sustained by Lagos state athletes during the 16^th National Sports Festival (K...

Authors: Oluwatoyosi BA Owoeye

Clinical and arthroscopic findings in recreationally active patients

To examine the diagnostic accuracy of standard clinical tests for the shoulder in recreational athletes with activity related pain.

Authors: Elizabeth M Fowler, Ian G Horsley and Christer G Rolf

Anatomical significance of a posterior horn of medial meniscus: the relationship between its radial tear and cartilage degradation of joint surface

Traumatic injury and surgical meniscectomy of a medial meniscus are known to cause subsequent knee osteoarthritis. However, the difference in the prevalence of osteoarthritis caused by the individual type of t...

Authors: Akinori Kan, Midori Oshida, Shigemi Oshida, Masato Imada, Takumi Nakagawa and Shuji Okinaga

Traumatic fracture-dislocation of the hip following rugby tackle: a case report

Posterior fracture-dislocation of hip is uncommonly encountered in rugby injuries. We report such a case in an adult while playing rugby. The treating orthopaedician can be caught unaware and injuries in such ...

Authors: Santosh Venkatachalam, Nima Heidari and Tony Greer

Time dependence of changes of two cartilage layers in anterior cruciate ligament insertion after resection on chondrocyte apoptosis and decrease in glycosaminoglycan

The purpose of this study is to clarify the differences in time-dependent histological changes (chondrocyte apoptosis and glycosaminoglycan (GAG) layer thickness decrease) between uncalcified fibrocartilage (U...

Authors: Masataka Sakane, Hirotaka Mutsuzaki, Shinya Hattori, Hiromi Nakajima and Naoyuki Ochiai

Sagittal realignment osteotomy for increased posterior tibial slope after opening-wedge high tibial osteotomy: a case report

A 40 year old welder who underwent opening-wedge high tibial osteotomy for correction of alignment in a varus knee developed persistent pain with loss of knee extension. The posterior tibial slope increased fr...

Authors: Yuka Kimura, Yasuyuki Ishibashi, Eiichi Tsuda, Akira Fukuda and Harehiko Tsukada

Intraosseous ganglion in the subchondral region of the lateral femoral condyle in an 11-year-old girl: a case report

We report the case of a patient with intraosseous ganglion in the lateral femoral condyle. An 11-year-old girl presented with right knee pain following a twisting injury. Plain radiographs of the knee showed a...

Authors: Hiroshi Nakayama, Masayoshi Yagi and Shinichi Yoshiya

Lower trunk kinematics and muscle activity during different types of tennis serves

To better understand the underlying mechanisms involved in trunk motion during a tennis serve, this study aimed to examine the (1) relative motion of the middle and lower trunk and (2) lower trunk muscle activ...

Authors: John W Chow, Soo-An Park and Mark D Tillman

Anti-inflammatory management for tendon injuries - friends or foes?

Acute and chronic tendon injuries are very common among athletes and in sedentary population. Most physicians prescribe anti-inflammatory managements to relieve the worst symptoms of swelling and pain, includi...

Authors: Kai-Ming Chan and Sai-Chuen Fu

Between-day reliability of electromechanical delay of selected neck muscles during performance of maximal isometric efforts

The purpose of this study was to assess the between-day reliability of the electromechanical delay (EMD) of selected neck muscles during the performance of maximal isometric contractions in five different dire...

Authors: Sivan Almosnino, Lucie Pelland, Samuel V Pedlow and Joan M Stevenson

Graft healing in anterior cruciate ligament reconstruction

Successful anterior cruciate ligament reconstruction with a tendon graft necessitates solid healing of the tendon graft in the bone tunnel. Improvement of graft healing to bone is crucial for facilitating an e...

Authors: Chih-Hwa Chen

Knee stability assessment on anterior cruciate ligament injury: Clinical and biomechanical approaches

Anterior cruciate ligament (ACL) injury is common in knee joint accounting for 40% of sports injury. ACL injury leads to knee instability, therefore, understanding knee stability assessments would be useful fo...

Authors: Mak-Ham Lam, Daniel TP Fong, Patrick SH Yung, Eric PY Ho, Wood-Yee Chan and Kai-Ming Chan

The free moment in walking and its change with foot rotation angle

This investigation characterized the time-history pattern of the free moment (FM) during walking and, additionally, assessed whether walking with either an internally or externally rotated foot position altere...

Authors: Sivan Almosnino, Tara Kajaks and Patrick A Costigan

Partial isolated rupture of the popliteus tendon in a professional soccer player: a case report

The complete isolated rupture of the popliteus tendon has been described as a rare injury and this report describes the case of a 31-year-old soccer player who sustained a partial rupture of the popliteus tend...

Authors: Pier Paolo Mariani and Fabrizio Margheritini

Medial patellofemoral ligament injury patterns and associated pathology in lateral patella dislocation: an MRI study

Lateral Patella dislocations are common injuries seen in the active and young adult populations. Our study focus was to evaluate medial patellofemoral ligament (MPFL) injury patterns and associated knee pathol...

Authors: Patrick Guerrero, Xinning Li, Ketan Patel, Michael Brown and Brian Busconi

The relation between athletic sports and prevalence of amenorrhea and oligomenorrhea in Iranian female athletes

In 1992, the concept of female athlete triad was introduced to describe the interrelated problems of amenorrhea, eating disorders and osteoporosis seen in female athletes. To gain a clearer picture of amenorrh...

Authors: Haleh Dadgostar, Mohammad Razi, Ashraf Aleyasin, Talia Alenabi and Saeideh Dahaghin

Iliotibial band release as an adjunct to the surgical management of patellar stress fracture in the athlete: a case report and review of the literature

Stress fracture of the patella is rare. In this report, a case of patellar stress fracture occurring in an amateur athlete is presented, and an operative adjunct to the surgical management of this condition is...

Authors: Anthony Keeley, Paul Bloomfield, Peter Cairns and Robert Molnar

Understanding acute ankle ligamentous sprain injury in sports

This paper summarizes the current understanding on acute ankle sprain injury, which is the most common acute sport trauma, accounting for about 14% of all sport-related injuries. Among, 80% are ligamentous spr...

Authors: Daniel TP Fong, Yue-Yan Chan, Kam-Ming Mok, Patrick SH Yung and Kai-Ming Chan

Challenging for cartilage repair

Authors: Mitsuo Ochi

Multidirectional instability of the shoulder – current concept

A guest editorial on the multidirectional instability of the shoulder

Authors: Seung-Ho Kim

The relationship between lower extremity alignment and Medial Tibial Stress Syndrome among non-professional athletes

To determine the relationship between lower extremity alignment and MTSS amongst non-professional athletes

Authors: Golam Reza D Raissi, Afsaneh D Safar Cherati, Kourosh D Mansoori and Mohammad D Razi

Electromyographic analysis of selected shoulder muscles during a rugby football tackle

Epidemiological studies have shown that the incidence of shoulder injuries is increasing in rugby and the majority are related to the contact/tackle phase of play. However, no data currently exists that descri...

Authors: Lee Herrington and Ian Horsley

Role of biomechanics in the understanding of normal, injured, and healing ligaments and tendons

Ligaments and tendons are soft connective tissues which serve essential roles for biomechanical function of the musculoskeletal system by stabilizing and guiding the motion of diarthrodial joints. Nevertheless...

Authors: Ho-Joong Jung, Matthew B Fisher and Savio L-Y Woo

Impact of movement training on upper limb motor strategies in persons with shoulder impingement syndrome

Movement deficits, such as changes in the magnitude of scapulohumeral and scapulathoracic muscle activations or perturbations in the kinematics of the glenohumeral, sternoclavicular and scapulothoracic joints,...

Authors: Jean-Sébastien Roy, Hélène Moffet, Bradford J McFadyen and Richard Lirette

Needle guide in shoulder arthroscopy – a technique

Distension of joint with fluid is often used to facilitate insertion of arthroscope. This may prove difficult at times in the shoulder joint, as unlike the knee, it is deeply situated, making extravasation of ...

Authors: Sujith Sidharthan, Aloysius N Mbako and James R Wootton

Synovial chondromatosis originating from the synovium of the anterior cruciate ligament: a case report

A case of synovial chondromatosis originating from the synovium of the anterior cruciate ligament (ACL) resulting in a mechanical block to knee extension is reported. A 36-year-old man complained of a restrict...

Authors: Tokifumi Majima, Tamotsu Kamishima and Kouichi Susuda

A systematic review of the literature on the effectiveness of exercise therapy for groin pain in athletes

Athletes competing in sports that require running, changes in direction, repetitive kicking and physical contact are at a relatively higher risk of experiencing episodes of athletic groin pain. To date, there ...

Authors: Zuzana Machotka, Saravana Kumar and Luke G Perraton

Rotational strength, range of motion, and function in people with unaffected shoulders from various stages of life

Different measurements are used to assess shoulder function, including range of motion, strength, functional performance and self-report function. To understand disablement, it is necessary to understand the r...

Authors: Jean-Sébastien Roy, Joy C MacDermid, Kirsty Usher Boyd, Kenneth J Faber, Darren Drosdowech and George S Athwal

Review of knee arthroscopy performed under local anesthesia

Local anesthesia for knee arthroscopy is a well documented procedure with diagnostic and therapeutic role. Numerous therapeutic procedures including partial menisectomy, meniscus repair, abrasion chondroplasy,...

Authors: Billy Kan-Yip Law, Patrick Shu-Hang Yung, Eric Po-Yan Ho, Joseph Jeremy Hsi-Tse Chang, Grace Ken Kwok, Kwai-Yau Fung and Kai-Ming Chan

A SMARTTfuture for sports medicine

Authors: Kai-Ming Chan and Masahiro Kurosaka