Radiofrequency vaporization of popliteal cyst under arthroscopic monitoring

Arthroscopic monitoring of radiofrequency axillary cystectomy for arthroscopic techniques in extra-articular applications. The axillary cyst is also called Baker cyst, and the posterior capsule is paralyzed. As early as 1829, Dupuytren proposed the name of the axillary cyst. In 1840, Adams first discussed the communication between the axillary cyst and the semimembranoseal sac. The incidence of popliteal cysts is higher in middle and old people, and more men than women. More secondary to osteoarthritis, meniscus posterior horn injury or synovitis. The use of local anesthesia for radiofrequency vaporization of popliteal cysts removes less disturbance to the patient, less trauma, and quicker recovery, making the surgery more invasive. Curing disease: Indication 1. The axillary cyst is ineffective by non-surgical treatment, repeated attacks, prolonged unhealed and clinical symptoms are obvious. 2. The popliteal cyst originates from the diaphragmatic tendon, the gastrocnemius muscle, and the semi-membrane tendon sac, which communicates with the posterior joint capsule. Local compression or continuous compression of the cyst will shrink and increase after activity. 3. Contrast imaging found that the popliteal cyst communicated with the joint cavity or from the axillary sheath tissue around the armpit and the joint cavity. Cysts associated with osteoarthritis, synovitis, meniscus injury and other intra-articular lesions, cysts and the posterior joint capsules, the simple axillary cyst surgery may have recurrence. Knee cleansing during the same period or in stages helps to avoid cyst recurrence. Contraindications Recurrence after open surgery, local large amount of scar adhesion, there may be other methods of injury to the vascular nerve. Preoperative preparation Serum 3000ml + 0.1% adrenaline 1ml as a perfusate, continuous rinsing, to keep the field under the microscope clear. Surgical procedure 1. Cut the skin 5 mm beside the cyst, place the arthroscope, and insert another incision into the arthroscopy instrument. 2. Observe the anatomical relationship between the cyst and the posterior joint capsule and surrounding tissue. The wall of the capsule was found to be honeycomb-like and vortex-like. 3. Under the microscope, the local anesthetic containing epinephrine is injected into the surface of the cyst wall, so that the cystic wall tissue is edema and easy to separate from the surrounding tissue structure. The blunt stripper is inserted between the wall of the capsule and the surrounding tissue under a mirror to separate the capsule wall and completely separate the capsule wall from the surrounding tissue. 4. The arthroscope retreats to the outside of the capsule cavity, and the grasping forceps pulls the wall tissue outward, and from the other inlet, the basket or RF gasification electrode is cut to cut the pedicle. The wall tissue map was taken out, and the radiofrequency gasification wound completely stopped bleeding.