The goal of this study is to compare the biomechanical stability and clinical outcomes of two treatment methods for inferior pole patellar fractures (IPPF): anchor suture with patellar cerclage and Kirschner-wire tension band combined with patellar cerclage. The study involves patients with IPPF, focusing on fracture patterns and treatment outcomes. 1. Undergo retrospective analysis of fracture patterns using fracture mapping. 2. Participate in biomechanical analysis via finite element modeling of both treatment methods. 3. Be part of a clinical comparison between two surgical treatments based on operative time, postoperative complications, and functional outcomes.
Study Type
OBSERVATIONAL
Enrollment
57
This intervention involves the use of \*\*anchor suture fixation combined with titanium cable cerclage\*\* for the treatment of inferior pole patellar fractures (IPPF). The anchor suture provides stable fixation of fracture fragments by anchoring directly into the bone, while the titanium cable cerclage offers additional reinforcement around the patella to enhance stability and minimize fragment displacement. This method is specifically designed to address the limitations of traditional Kirschner-wire tension band techniques, such as hardware irritation and infection, by using biocompatible and low-profile materials.
This intervention uses \*\*Kirschner wire tension band combined with cerclage cable\*\* to treat inferior pole patellar fractures (IPPF). The Kirschner wires are positioned across the fracture site to form a tension band, which transforms tensile forces into compressive forces, promoting fracture stability. The cerclage cable is added to reinforce the fixation by encircling the patella, providing additional stability to comminuted or complex fractures.
The medical record system and imaging system of the Second Affiliated Hospital of Soochow University
Suzhou, Jiangsu, China
final knee range of motion
The final knee range of motion is assessed to evaluate the functional recovery of patients following surgical treatment for inferior pole patellar fractures (IPPF). This measure includes the degree of flexion and extension achieved during follow-up, as documented through physical examination and patient self-reports. The range of motion is compared between the two intervention groups to determine the effectiveness of each treatment method in restoring knee functionality and mobility. Outcomes are measured and analyzed based on clinical standards and benchmarks for knee rehabilitation.
Time frame: 6 months to 1.5 years after surgery
incidence of secondary surgery
The incidence of secondary surgery is defined as the number of patients who require an additional surgical procedure related to the treatment of inferior pole patellar fractures (IPPF) within the follow-up period. This includes procedures to address complications such as hardware irritation, infection, nonunion, malunion, or mechanical failure of the initial fixation. The data will be compared between the two intervention groups to evaluate the durability and long-term effectiveness of each surgical technique. This measure provides critical insights into the need for re-intervention and overall treatment success.
Time frame: 6 months to 1.5 years after surgery
postoperative complications
Postoperative complications include any adverse events or clinical issues occurring as a result of the surgical treatment for inferior pole patellar fractures (IPPF) within the follow-up period. These complications may include, but are not limited to, hardware irritation, infection, wound dehiscence, delayed union, nonunion, or malunion. Data will be collected from medical records and follow-up visits to identify the frequency and types of complications in each intervention group. The results will be analyzed to compare the safety profiles of the anchor suture with titanium cable cerclage and the Kirschner wire tension band with cerclage cable techniques. This outcome is critical for assessing the overall safety and effectiveness of each surgical approach.
Time frame: 6 months to 1.5 years after surgery
operative time
Operative time is defined as the total duration of the surgical procedure, measured from the initial incision to the completion of wound closure. This outcome measure evaluates the efficiency of the surgical intervention and provides insights into the complexity and technical demands of each technique. Operative time is compared between the two groups (anchor suture with titanium cable cerclage vs. Kirschner wire tension band with cerclage cable) to assess any significant differences in surgical duration. This metric is particularly relevant in evaluating the practicality and feasibility of each intervention in clinical practice.
Time frame: 6 months to 1.5 years after surgery
functional recovery
Functional recovery is evaluated using validated scoring systems, such as the Bostman score, to assess the restoration of knee function following surgical treatment for inferior pole patellar fractures (IPPF). This measure includes parameters such as pain levels, range of motion, ability to perform daily activities, and overall patient satisfaction. Data will be collected during follow-up visits to determine the extent of functional improvement and to compare outcomes between the two intervention groups (anchor suture with titanium cable cerclage vs. Kirschner wire tension band with cerclage cable). This outcome provides critical insights into the effectiveness of each surgical technique in achieving optimal rehabilitation and long-term knee function.
Time frame: 6 months to 1.5 years after surgery
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