CONTEXT Lateral ankle sprains can manifest into chronic mechanical joint laxity when not treated effectively. Joint laxity is often measured through the use of manual stress tests, stress radiography, and instrumented ankle arthrometers. PURPOSE To systematically review the literature to establish the influence of chronic ankle instability (CAI) on sagittal and frontal plane mechanical joint ...

BACKGROUND Dislocation of the sternoclavicular joint is a rare injury that has a low incidence of signifcant long-term symptoms. Surgical reconstruction of the joint is indicated in patients with symptomatic, chronic anterior instability or with irreducible or recurrent posterior instability. There have been many reported techniques for stabilization of the joint, but few investigators have rep...

BACKGROUND Shoulder instability is a common problem in young athletes and can lead to pain and decreased ability to participate in high-level activities. Little is known about the modifiable risk factors for glenohumeral joint instability. HYPOTHESIS Isometric shoulder strength at baseline would be a modifiable risk factor associated with subsequent first-time anterior instability events. S...

While most sternoclavicular joint (SCJ) dislocations can be managed non-operatively with closed reduction, persistent or recurrent instability associated with pain or inability to work necessitates operative management [1]. Non-operative management has further been shown to result in symptomatic degenerative changes in the SCJ [2]. Reconstruction is generally indicated in the setting of symptom...

Submit Manuscript | http://medcraveonline.com repair [2]. The resulting bone and joint deformities may be associated with instability and may compromise the fitting of shoes or braces. Furthermore, ulceration may result from instability or bony prominence and may cause chronic or recurrent soft tissue infection and osteomyelitis. Amputation may be required for management of infection or instabi...

The ligament reconstruction technique described closely reconstructs the anatomic origin and insertion of the palmar and dorsal radioulnar ligaments. In a series of 14 patients, stability was completely restored in 12. Patients were able to return to their previous work, athletic activities, and avocations without limitations. Recovery of strength and motion was at least 85%. One patient with i...

BACKGROUND The ankle joint requires very precise neuromuscular control during the transition from terminal swing to the early stance phase of the gait cycle. Altered ankle joint arthrokinematics and muscular activity have been cited as potential factors that may lead to an inversion sprain during the aforementioned time periods. However, to date, no study has investigated patterns of muscle act...

BACKGROUND The arthroscopic findings in patients with chronic anterior syndesmotic instability that need reconstructive surgery have never been described extensively. METHODS In 12 patients the clinical suspicion of chronic instability of the syndesmosis was confirmed during arthroscopy of the ankle. All findings during the arthroscopy were scored. Anatomical reconstruction of the anterior ti...

1. The relationship between joint damage, quadriceps weakness and arthrogenic muscle inhibition was investigated in eight patients who had sustained extensive traumatic knee injury. Isometric and isokinetic quadriceps and hamstring voluntary strength, and quadriceps arthrogenic muscle inhibition during isometric contractions, were measured before and after 4 weeks (approximately 100 h) of inten...

Patellofemoral joint instability is a complex clinical problem. It may be a consequence of pre-existing anatomical abnormality or trauma. The objectives of this study were to use experimental mechanics to measure patellar stability and to quantify the effects of pathological abnormalities on patellar stability in vitro. Eight fresh-frozen cadaver knees were studied. The patellar stability was m...