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Patellar height changes sequentially after medial open wedge high tibial osteotomy: Evaluation using shear wave
Yuki Kudo1, Akira Maeyama1, Tetsuro Ishimatsu1
1Department of Orthopaedic Surgery, Faculty of Medicine, Fukuoka University 7-45-1 Nanakuma, Jonan-ku, Fukuoka 810-0180, Japan.
Summary
Medial open wedge high tibial osteotomy (MOWHTO) alters patellar tendon properties and height over time. Changes in patellar tendon elasticity and thickness correlate with patellar height shifts post-surgery.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
- Musculoskeletal research
Background:
- Medial open wedge high tibial osteotomy (MOWHTO) is a surgical procedure to correct knee alignment.
- Understanding post-operative changes in the patellar tendon is crucial for patient outcomes.
- Patellar height alterations can impact knee function and biomechanics.
Purpose of the Study:
- To evaluate patellar tendon tissue changes after MOWHTO using shear wave elastography (SWE).
- To identify factors influencing patellar height changes following MOWHTO.
Main Methods:
- 24 patients undergoing MOWHTO were studied.
- Patellar tendon length, thickness, and elasticity were measured using SWE pre-operatively and at 2 weeks, 3, 6, and 12 months post-operatively.
- Caton-Deschamps index (CDI) and lower limb alignment were assessed.
Main Results:
- Significant changes in CDI were observed post-MOWHTO.
- Patellar tendon length decreased, while thickness increased post-surgery.
- Changes in medial proximal tibial angle and distal patellar tendon elasticity correlated with patellar height changes.
Conclusions:
- Patellar height undergoes sequential changes after MOWHTO.
- Alterations in patellar tendon quality following MOWHTO contribute to these patellar height changes.
