Journal of the Medical Association of Thailand = Chotmaihet thangphaet
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The popliteal vessels and nerve are the structures most at risk during surgery of the posterior knee compartment. Common procedures that could interfere with or otherwise affect these structures include synovectomy, meniscal repair, proximal tibial osteotomy, knee replacement and fixation around the knee joint. Magnetic resonance imaging (MRI) can be used to locate the neurovascular structures from the posterior bony landmark. MRI imaging is routinely studied in the extended knee, but surgery of the posterior knee compartment is most often performed with the knee in a flexed position. ⋯ During 90-degree knee flexion, the neurovascular structures move posterolaterally, as compared to fully extended knee position at joint line level and 1 cm above and below joint line level. To prevent neurovascular injury during surgery, surgeons should avoid or be cautious during blind penetration of the midline joint capsule and 90 degree flexed knee position increases the distance of the neurovascular bundle away from the posterior bony aspect.
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Randomized Controlled Trial
Efficacy of a Single Intra-Articular Injection of 2% Sodium Hyaluronate Plus 0.5% Mannitol in Patients with Symptomatic Osteoarthritis of the Knee: A Preliminary Report.
Intra-articular injection of hyaluronic acid is widely used as a treatment for osteoarthritis of the knee. The recommended dosing regimens have generally ranged from 3 to 5 injections. ⋯ Symptomatic OA knee patients who received a single intra-articular injection of 2% sodium hyaluronate plus 0.5% mannitol had better outcomes over the 24-week follow-up period than control group patients who received no injection intervention.