Related Experiment Videos
Does patellar ligament length change after dome-type high tibial osteotomy?
1Department of Orthopaedics and Traumatology, Adnan Menderes University, Aydin, Turkey.
Bulletin (Hospital for Joint Diseases (New York, N.Y.))
|December 29, 2000
Summary
Dome-type high tibial osteotomy (HTO) with external fixation for early mobilization did not prevent patellar ligament shortening. Radiographic indices showed significant postoperative decreases, indicating ligament length reduction after this surgical approach.
Area of Science:
- Orthopedic surgery
- Biomechanical analysis
Background:
- High tibial osteotomy (HTO) is a surgical procedure to correct knee alignment.
- Patellar ligament shortening is a potential complication following certain osteotomy techniques.
- Dome-type HTO aims to correct knee alignment while potentially minimizing soft tissue complications.
Purpose of the Study:
- To investigate patellar ligament length changes after dome-type high tibial osteotomy (HTO).
- To evaluate the effect of early mobilization using an external fixator on patellar ligament length.
Main Methods:
- Retrospective review of 40 patients undergoing unilateral dome-type HTO with fibular osteotomy.
- Measurement of Insall-Salvati (IS), Blackburne-Peel (BP), and Caton-Deschamps (CD) indices pre- and postoperatively.
- Analysis of radiographic data with a mean follow-up of 55 months.
Main Results:
- Significant postoperative decrease observed in all measured patellar ligament indices (IS, BP, CD).
- Mean IS index decreased from 1.03 to 0.90.
- Mean BP index decreased from 0.86 to 0.80; mean CD index decreased from 0.97 to 0.90.
Conclusions:
- Dome-type HTO, even with early mobilization via external fixator, is associated with patellar ligament shortening.
- The observed shortening is consistent across multiple radiographic assessment indices.
- Follow-up duration did not significantly influence the degree of patellar ligament shortening.