Symptoms of patellar fracture

Written by Lv Yao
Orthopedics
Updated on April 07, 2025
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Patella fractures often occur due to direct trauma, such as a sudden fall that can result in a fracture of the patella, and symptoms include localized pain, swelling, and limited flexion and extension of the knee joint. If the patella fracture is widely separated, the presence of a hollow state anterior to the patella can be used to diagnose the fracture. The treatment of a patella fracture should be chosen based on a comprehensive analysis of the displacement of the fracture and the displacement of the joint surface.

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Written by Li Jie
Orthopedics
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Does a fracture hurt?

A fracture is an interruption in the continuity of a bone. After a fracture, there is significant bleeding at the site, along with bruising of the soft tissues nearby, including bleeding from blood vessels and bruising of muscles and tendons. Because these soft tissues are rich in nerves, the pain at the site of the fracture can be very severe. Pain is a primary symptom for patients with fractures. Other symptoms may include swelling, limitation of joint movement, potential deformities, and changes in the local shape. Pain, deformity, and limited function are the three common signs seen in patients with fractures.

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Written by Lv Yao
Orthopedics
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How to exercise with a patellar fracture?

After a patella fracture, it is necessary to fix and immobilize the patella for some time. During the immobilization, knee joint stiffness may occur, affecting the flexion and extension movements of the knee. Therefore, while treating a patella fracture, it is also important to guide the patient in functional exercises. For example, during the early stages of immobilization, the patient can actively contract the quadriceps femoris and the triceps surae to prevent thrombosis. This muscle exercise can also help avoid muscle atrophy. Additionally, patients can be instructed to dorsally extend the ankle joint to strengthen the ankle pump training and avoid ankle stiffness. Once the fracture is stabilized, the patient can sit beside the bed and let the knee bend naturally. When close to the bed, the knee can bend up to ninety degrees. If natural bending is difficult, the healthy limb can be used to push the injured limb closer to the bed, allowing the knee to bend to ninety degrees. After reaching ninety degrees, it might be appropriate to use crutches for walking activities. If bending beyond ninety degrees is necessary, the patient should lie flat on the bed, hug the thigh of the injured limb with both hands, flex the hip joint, and then allow the knee joint to bend through gravity beyond ninety degrees, approaching the normal range.

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Written by Dai Ru
Orthopedics
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How to immobilize a fracture

Fractures, based on the method of fixation, can be divided into external fixation and internal fixation. External fixation can further be divided into various methods, commonly including plaster fixation, small splint fixation, external fixator brace fixation, orthotic fixation, and traction fixation, among others. Internal fixation, depending on the type of internal fixation device used, can be divided into steel plate screw fixation, simple compression screw fixation, intramedullary nail fixation, etc. Regardless of the type of fixation, the main purpose is to maintain the stability of the fracture and promote fracture healing.

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Written by Lv Yao
Orthopedics
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When does new bone grow after a fracture?

A fracture refers to the destruction of the integrity and continuity of bone, presenting symptoms such as localized pain, swelling, restricted movement, and deformity. Appropriate treatment should be chosen based on the extent of displacement and whether there is associated damage to significant blood vessels or nerves. Bone healing is a prolonged process. About two weeks post-injury, there will be an increase in osteoclast activity at the site, clearing away the necrotic ends of the fractured bone, thereby stimulating the formation of new bone. Approximately four to six weeks later, there will be a significant proliferation of osteoblasts, leading to the formation of new bone callus. Thus, new bone growth begins around four to six weeks after the fracture.

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Written by Lv Yao
Orthopedics
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What is good to eat for fractures?

If a fracture occurs, it is recommended to start with a light diet, consuming easily digestible foods such as leafy greens and porridge to facilitate the recovery of gastrointestinal function. Once the condition stabilizes, you can add foods rich in protein and calcium, such as beef, eggs, bean products, and milk, which are all good sources of protein and calcium. It is advisable not to consume foods that are too high in fat as they can lead to weight gain and also interfere with the absorption of calcium.