Sixty patients were treated for medial instability by advancementof the medial collateral ligament and posteromedial capsule as a single cuff, moving its tibial attachments both anteriorly and distally. Using a 0 to 4 + grading scale to quantitate medial instability, all patients had 2 + medial instability or more preop eratively while at follow-up thirty-six had 0, twenty-one, 1 + ; and three,...

abstract patellar instability is a multifactorial common knee pathology that has a high recurrence rate, and the symptoms continue and ultimately predispose the patient to chondromalacia and osteoarthritis. tibial tuberosity-trochlear groove distance (tttg) is very important in the assessment of patellofemoral joint instability. the purpose of this study was to report normal value of tttg in ma...

A possible cause for a painful total knee prosthesis is flexion gap asymmetry with medial or lateral instability despite adequate axial and rotational alignment of both components and adequate extension gap balancing. To avoid component exchange, ligament advancement techniques can be used. Soft tissue procedures carry the risk of insufficiently stable scarring. Epicondylar sliding osteotomies ...

After anterior cruciate ligament (ACL) rupture, some individuals demonstrate the ability to dynamically stabilize their injured knee (potential copers). The majority of ACL deficient individuals, however, are classified as non-copers; they have knee instability with daily activities, exhibit quadriceps weakness, and have altered movement patterns. Prior to surgery, non-copers have been shown to...

The arcuate sign is a well described finding of fibular head avulsion at the insertion site of the arcuate complex. It has been associated with posterolateral corner knee injury and resulting instability. The authors report two patients presenting with the arcuate sign following knee dislocation, which has not been previously described. As unrecognized spontaneously reduced knee dislocation oft...

Purpose: Military boots’ mileage is a main factor that can be influence the risk of sustaining injuries during running. The aim of the present study was to evaluate the effect of three types of military boots’ mileage on knee muscular co-contraction during running. Methods: Fifteen healthy males received three new pairs of military boots. They were asked to wear these shoes for over 6 months. ...

Dislocation after total knee arthroplasty is a difficult problem and is even more challenging if it occurs following revision. We report the case of a 82 year old male presenting after a frank posterior dislocation (Cam Jump) in a posterior stabilized revision knee arthroplasty without trauma. Flexion space instability with extensor insufficiency was presumed to be the cause of the dislocation ...

The goal of this study was to analyze the clinical and radiographic results and the survival rate of a series of rotating-hinge implants used for revision total knee arthroplasties in mild and severe instability. Between December 1991 and June 2004, fifty-three revision total knee arthroplasties were performed using the Endo-Modell (Waldemar LINK GmbH and Co, Hamburg, Germany) rotating-hinge pr...

Background. Injuries of the knee joint with ACL tears cause instability of the knee. Surgical reconstruction is indicated for young, active people with functional instability of the knee, and not merely a tear in the ACL. The term "young people" is relative: even 50-year old men with no degenerative changes in the knee joint can be qualified for surgery. After surgical reconstruction intensive ...

The Morquio syndrome is a rare disorder which presents with a number of musculoskeletal problems. The literature describing total knee replacement in these patients is sparse. We describe the management of a patient with bilateral instability and pain in the knees using bilateral constrained knee replacements, and followed up for five years with pre- and postoperative knee scores. We highlight ...