Umit Sefa Muezzinoglu

Bone marrow edema seen in MRI of osteoarthritic knees is a microfracture.

We hypothesize that the bone marrow edema seen in MRI images of osteoarthritic joints are a result of microfractures. These microfractures caused intermittent pain of the osteoarthritis knees. Varus malalignment of the knee with osteoporosis leads loading on the medial compartment, and high pressure on the lateral compartment for valgus malalignment.

Bilateral congenital vertical talus with severe lower extremity external rotational deformity: treated by reverse Ponseti technique.

Congenital vertical talus, also known as congenital convex pes valgus, is a complex, rare, foot deformity that is resistant to conservative treatment. We report a case of bilateral congenital vertical talus with severe lower extremity external rotational deformity that was treated by means of a method of serial manipulations and casts. Although the initial manipulation and casting before surgical treatment is the current concept of idiopathic congenital vertical talus, a good result can be obtained by a well-organized conservative treatment with the help of patient compliance, so routine surgical release of the Achilles tendon may not be necessary in all cases.

Arthroscopic fixation with intra-articular button for tibial intercondylar eminence fractures in skeletally immature patients.

The aim of this study was to describe our experiences with arthroscopy-guided intra-articular button fixation in the treatment of displaced tibial eminence fractures in skeletally immature children. Eleven adolescent patients with an average age of 12.2 years were treated arthroscopically between January 2005 and February 2007. At follow-up evaluation at 69 months, we did not find any instability. Only minimal differences were found in the functional outcomes (Lysholm and International Knee Documentation Committee scores: 95.7 and 94.3, respectively). None of the patients had a leg-length discrepancy defined at the time of the final follow-up. The advantages of this technique are as follows: (a) it is a simple and reliable arthroscopic technique with a direct view, (b) the fixation is stable, (c) there is no need to remove the implant, (d) minimal physeal interruption in a pediatric skeletally immature population, and (e) no additional arthroscopic portal.

Anterior knee dislocation with ipsilateral open tibial shaft fracture: a 5-year clinical follow-up of a professional athlete.

Traumatic dislocation of the knee joint is an uncommon complex, multiple ligamentous injury resulting from a high-energy trauma. Significant lack of functions can be seen because of both early and late complications of these injuries such as popliteal artery disruption, peroneal nerve injury, persistent instability and posttraumatic arthritis. Therefore, the emergency surgery is necessary due to possibility of neurovascular compromise and limb loss. Controversies over operative versus closed immobilization of traumatic complex, multiple ligamentous knee injury are still debated. We report a case of traumatic anterior dislocation of the right knee with an ipsilateral tibial shaft fracture in association with right popliteal artery occlusion of a professional athlete who was returned to his sports activity by surgical treated tibia fracture and conservative treatment of the knee dislocation.

Vacuum-assisted closure for skin necrosis after revision total knee arthroplasty

Although skin necrosis following total knee arthroplasty or revision total knee arthroplasty is rare, it may cause severe complications. Skin changes begin with superficial infections and may result in removal of the prosthesis. Treatment of skin necrosis is an important factor, which determines the prognosis of the prosthesis. Several techniques have been defined for sufficient closure. In this article, we present the case of a patient who was treated for skin necrosis that developed after knee revision arthroplasty, using serial debridement, convergence sutures and an intermittent vacuum‐assisted closure device (KCI Inc., San Antonio, TX).