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3 results on '"Jin-Song Pu"'

1. Arthroscopic mini tunnel suture bridge for ACL tibial avulsion fractures repair

Author

Jin-Song Pu, Lin Zheng, and Chang-Chun Jian

Subjects
Transosseous, Suture bridge, Anterior cruciate ligament, Tibial avulsion fracture, Arthroscopy, Medicine, Science
Abstract

Abstract The study presents an arthroscopic transosseous suture bridge technique for repairing avulsion fractures of the tibial insertion of the anterior cruciate ligament (ACL), specifically tailored for adolescent patients. The technique utilizes two mini tunnels, integrating the principles of transosseous tunneling and suture bridging to ensure stable fixation while minimizing the impact on the bone bed. Over a seven-year period, 39 patients with Meyers-Mckeever types II, III, and IV tibial avulsion fractures underwent this procedure. The surgery had an average duration of 52.7 min and resulted in decreased swelling and pain within two months postoperatively. All patients achieved full knee extension and over 120° of flexion. X-rays confirmed complete fracture healing within six to 12 months, and negative anterior drawer test and Lachman test indicated stable fixation. Significant improvements were seen in Lysholm and IKDC scores. This technique offers several advantages: it is effective, stable, and particularly suitable for adolescents due to the reduced impact on the bone bed and successful avoidance of epiphyseal plate injury.

Published
2024
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2. Thrombin: A potential regulator between head injury and enhanced osteogenesis

Author

Tian-Fu Yang and Jin-Song Pu

Subjects
Pathology, medicine.medical_specialty, Traumatic brain injury, Callus formation, business.industry, Regulator, Medicine (miscellaneous), Osteoblast, Inflammation, Bone healing, medicine.disease, Agricultural and Biological Sciences (miscellaneous), Biochemistry, Genetics and Molecular Biology (miscellaneous), Thrombin, medicine.anatomical_structure, Coagulation, medicine, Cancer research, medicine.symptom, business, medicine.drug
Abstract

In patients with severe traumatic brain injury (TBI), healing of a fracture of long or large bone has been observed to be accelerated with excessive callus formation and united at a faster rate. It seems that the enhanced osteogenesis in patients strongly promotes the growth of osteoblast cells. The existing hypothesis is not convincing in explaining the mechanisms of this problem. Craniocerebral trauma patients present a state of hypercoagulability at early stage and thrombin content was very high level at the site of injury. Thrombin is an important link between coagulation and inflammation, and exerts multiple effects upon osteoblasts including stimulating proliferation and inhibiting osteoblast differentiation and apoptosis. Whether this rapidly forming new bone is caused by thrombin has not yet been identified. We hypothesize that in the case of an individual with a head injury, thrombin might be a potential regulator of early fracture healing, which result in accelerated bone healing and hypertrophic callus. If this hypothesis is verified, it will be helpful for the understanding of the basic mechanisms involved in control of bone repair and potential for the development of new novel therapeutic agents.

Published
2009
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3. Results of the proximal femoral nail anti-rotation (PFNA) in elderly Chinese patients

Author

Guang-lin Wang, Tianfu Yang, Lei Liu, Yue Fang, and Jin-Song Pu

Subjects
Male, medicine.medical_specialty, Femoral nail, Radiography, Bone Nails, law.invention, Intramedullary rod, Fixation (surgical), Asian People, law, Medicine, Humans, Orthopedics and Sports Medicine, Femur, Prospective Studies, Prospective cohort study, Aged, Aged, 80 and over, Pain, Postoperative, Original Paper, integumentary system, business.industry, Hip Fractures, Recovery of Function, Middle Aged, Surgery, Fracture Fixation, Intramedullary, Treatment Outcome, Orthopedic surgery, Thigh pain, Female, business
Abstract

A prospective study is presented of 87 unstable intertrochanteric fractures treated with the proximal femoral nail anti-rotation (PFNA) with a follow-up of one year. Of the patients 76% were female. The average age was 75.3 years. The fracture was treated by closed reduction and intramedullary fixation. Pre-injury activity level was recovered in 77% of the patients. Fractures united in all patients. Mechanical failure and cut-out were not observed. A technical problem related to the mismatch of the proximal end of the nail was observed in 11 cases. Nine patients presented with thigh pain due to the redundant proximal end of the nail. The results of the PFNA were satisfactory in most elderly Chinese patients. However, the proximal end of the nail was not matched with the specific anatomy of some short elderly patients. Further modifications of the nail are necessary for the elderly Chinese population.

Published
2008

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