| Objective To investigate the clinical effects of steel-wire binding and ring pins combined with suture cerclage for the treatment of comminuted patella fracture. Methods A total of 56 patients with comminuted fracture of patella (36 males and 20 females aging from 24 to 65 years, with an average age of 41.6 years) admitted to our hospital from March 2017 to March 2020 were retrospectively analyzed. The interval from injury to surgery was 4-9 d (mean, 5.2 d). For the operation, after fracture reduction, two 2.0/2.5 mm ring pins were inserted perpendicular to the transverse axis of the reduced patella and parallel to each other on its medial 1/3 and lateral 1/3. Roll wire was passed through the ring of the pins, rounded making a figure of 8 wiring, and tightened at the distal portion of the ring pin. ETHBOND EXCEL 2 polyester non-absorbable sutures encircled the whole patella, and tighten to achieve a satisfactory reduction of the fracture. During the follow-up, complications were observed, maximum motion range of the knee joint was measured, X-ray examination was performed and fracture healing time was recorded. The knee function was evaluated according to Böstman scores. Results All the 56 patients were followed up 12-23months (mean, 15.3 months). Incision infection occurred in 1 case, no bone nonunion, loss of reduction or displacement of internal fixation occurred. All fractures were clinically healed, and the bone healing time was 2-4 months. Three months after surgery, the maximum motion range of knee joint was 128°-135°, with an average of 131.7°. After 6 months, the Böstman score of the affected knee was 24-30 (mean, 27.8). And the Böstman score of the affected knee was 26-30 (mean, 28.3) in 1 year postoperatively. All cases were graded as excellent results. No fracture displacement and internal fixation loosening occurred during the follow-up. Conclusion Non-absorbable suture cerclage combined with steel-wire binding and ring pins for comminuted fractures of patella has the advantages of reliable fixation and few complications, the comminuted patella fracture stability increased and the metal implants decreased, it is an effective treatment method suitable for complex patella fracture. |
