Zhu Lan

Zhulan, also known as cyanine or pearl orchid, is a species of the Chrysanthemum genus belonging to the Asteraceae family. It is a popular ornamental plant valued for its attractive foliage and delicate flowers. **Morphological Characteristics** Zhulan is an evergreen shrub with thick, sturdy stems that grow between 30 to 70 cm in height. The plant has a soft, lush appearance. Its leaves are stalked, elliptical in shape, measuring about 7–8 cm in length. The leaf tips are rounded, while the base tapers into a wedge shape. The leaves are thick, soft, and smooth to the touch. From May to June, the plant produces dense clusters of small, yellow-green flowers that resemble fish eggs. These flowers are scentless but have a subtle blueish hue. After flowering, the plant develops oval-shaped drupes containing a single seed. **Native Habitat** Zhulan is native to China, Japan, and North Korea. It typically grows in low mountainous areas of the subtropical region. In China, it is commonly found wild in many southern provinces. This plant prefers warm and humid climates, and it does not tolerate direct sunlight or extreme cold. It thrives in well-drained, acidic, and nutrient-rich loamy soil. **Cultivation Techniques** Propagation of Zhulan can be done through division or cuttings. When dividing, ensure each section has as much root system as possible. Alternatively, you can take cuttings from one-year-old branches in early September. Cut the branches into 10–15 cm sections, leaving the top two leaves intact. Plant them 3–5 cm deep in a well-draining medium, and keep them in a shaded, moist environment. Rooting usually occurs by mid-October. For maintenance, water according to the dry-wet cycle, avoiding overwatering. Apply a diluted liquid fertilizer once or twice in autumn and early spring. During summer, ensure good air circulation to prevent heat stress. In winter, protect the plant from frost and cold winds. **Uses** Zhulan is highly prized as a potted plant due to its evergreen foliage and beautiful blooms. Its shade tolerance makes it ideal for indoor decoration, often placed on tables or in living spaces for aesthetic appeal. It is a versatile and easy-to-care-for plant that adds a touch of nature to both homes and gardens.

Orthopedic External Fixator

Orthopedic external fixation system

The screw orthopedic is inserted into the bone near the fracture, and the fracture is fixed with an external fixator assembled by a chuck and a nail rod.

Indications

open fracture, nonunion, closed fracture with extensive soft tissue injury, fracture with multiple trauma, osteotomy and correction.

The use of orthopaedic external fixators is currently a superior fracture fixation technique, filling the gap between cast and internal fixation. At the same time, orthopedic external fixator has the characteristics of simple fixation method, stable, reliable and effective, and does not limit the joint movement, can be early ambulation advantages. It can reduce the time for the operator and is more friendly to the user. The external fixator was used together with the bone traction needle. In terms of the classification of orthopedic external fixators, it is mainly divided into four types: orthofix type external fixation, ilizarov type external fixation, ao synthes type external fixation,combined external fixator and common external fixators.

The external fixators in orthopaedics was used for reduction (shortening and overlapping displacement were corrected first, then lateral and angular displacement were corrected, and finally rotational and separation displacement were corrected; If closed reduction is difficult, open reduction can be considered, but the separation of soft tissue and peeling of periosteum should be minimized.

The selection of the insertion site.According to the anatomical characteristics of the soft tissue at the insertion plane, the important nerves, vessels and tendons should be avoided; The ideal entry point is the part of the bone close to the subcutaneous, in a word, generally choose the skin and bone between the muscle soft tissue is the weakest point into the needle. The installation shall facilitate observation and control of soft tissue damage, and permit any surgery that may be required, such as repair and reconstruction, dressing change, skin grafting, or bone grafting." According to the location of the bone, different diameters of the threaded needle were selected. Removal was performed after completion of late treatment.

Orthopedic External Fixator,Orthopedic Fixator,External Fixation,External Fixator

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