Clinical application of cannulated screws tension band and cerclage fixation for displaced patellar fractures based on fracture morphological classification - Report - MDSpire

Clinical application of cannulated screws tension band and cerclage fixation for displaced patellar fractures based on fracture morphological classification

  • By

  • Yong-Long Qiu

  • Ya-Ping Xiao

  • Ling Li

  • Jian-Zhong Chang

  • July 14, 2026

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Utilization of Cannulated Screws with Tension Band and Cerclage Fixation Techniques

Overview

This study evaluates the clinical outcomes of two cannulated screw tension-band fixation techniques combined with cerclage fixation for displaced patellar fractures. Both techniques achieved bony union with no significant differences in healing time or complications.

Background

Patellar fractures account for approximately 10% of all fractures and significantly impact knee extension movement. Effective surgical management is crucial to restore the articular surface and prevent complications such as nonunion and post-traumatic arthritis. Various fixation techniques exist, but a standardized approach remains elusive.

Data Highlights

GroupBony UnionComplicationsOperation TimeIntraoperative Blood LossFluoroscopy Times
Group I100%0HigherHigherHigher
Group II100%2 (anterior discomfort)LowerLowerLower

Key Findings

  • Bony union achieved in all cases in both groups.
  • No significant differences in incision length, hospital stay, or fracture healing time (P > 0.05).
  • Group I had higher operation time, intraoperative blood loss, and fluoroscopy times compared to Group II (P < 0.05).
  • Böstman scores improved significantly at 6 months post-surgery for both groups (P < 0.05).
  • No significant difference in Böstman scores between the two groups at 6 months (P > 0.05).

Clinical Implications

Both cannulated screw tension band techniques combined with cerclage fixation are effective for treating displaced patellar fractures.

Conclusion

Both fixation techniques demonstrate good clinical efficacy in managing patellar fractures.

Related Resources & Content

  1. Archives of Orthopaedic and Trauma Surgery, 2026 -- Clinical and functional outcomes of fracture pattern-driven plate osteosynthesis technique for comminuted patellar fractures using multiple miniplates
  2. Archives of Orthopaedic and Trauma Surgery, 2026 -- Double-row wired anchors combined with “8” cross tension bands: an innovative procedure for the treatment of inferior pole fractures of the patella and its finite element and biomechanical evaluation
  3. Utilization of Double-Plate Fixation Technique to Mitigate Varus Collapse in AO Type C3 Supra-Intercondylar Distal Femur Fractures, 2023
  4. Knee Surgery, Sports Traumatology, Arthroscopy — Reconstruction of Posterior Knee Stability Using Suspension Button Techniques in Solid Tibial Avulsion of the Posterior Cruciate Ligament
  5. AO Surgery Reference on Patellar Fractures
  6. Cerclage compression wiring for Complete articular, frontal/coronal simple fracture of the middle and proximal third

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