Chinese Journal of Tissue Engineering Research ›› 2024, Vol. 28 ›› Issue (21): 3349-3354.doi: 10.12307/2024.091

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Effects of distal tibial tuberosity-high tibial osteotomy on ankle angle on coronal plane

Yin Yuetong1, Zhu Guangyu2, Tian Xiangdong2, Tan Yetong2, Ma Sheng2, Xue Zhipeng2, Hu Yuanyi2, Li Xiaomin1   

  1. 1Third School of Clinical Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; 2Department of Minimally Invasive Arthrology, Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing 100029, China
  • Received:2023-05-06 Accepted:2023-06-28 Online:2024-07-28 Published:2023-09-27
  • Contact: Zhu Guangyu, Master, Associate professor, Associate chief physician, Master’s supervisor, Department of Minimally Invasive Arthrology, Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing 100029, China
  • About author:Yin Yuetong, Master candidate, Third School of Clinical Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
  • Supported by:
    Key Project of Beijing University of Chinese Medicine, No. 2020-JYB-ZDGG-142-5 (to TXD)

Abstract: BACKGROUND: Distal tibial tuberosity-high tibial osteotomy is a surgical treatment for knee osteoarthritis, but there is still a lack of clinical studies on its effect on ankle joints. 
OBJECTIVE: To observe the effects of distal tibial tuberosity-high tibial osteotomy on ankle angle on coronal plane of the radiography of the full length of lower limb in weight loading.  
METHODS: Data of 40 patients (41 knees) with distal tibial tuberosity-high tibial osteotomy from March 2021 to March 2022 were retrospectively analyzed, including 31 females and 9 males, 20 left knees and 21 right knees, aged 49-75 years, mean (63.44±6.57) years. The radiographic data of the full length of the lower limb in weight loading were collected before, week 2 and week 48 postoperatively. Hip-knee-ankle angle, talar tilt angle, tilt angle of the ankle, tibiocrural angle, and tibial articular surface angle were measured before and after surgery.  
RESULTS AND CONCLUSION: (1) Hip-knee-ankle angle improved from (-6.24±3.69)° before operation to (2.59±3.49)° week 2 postoperatively and (2.15±3.49)° week 48 postoperatively. The tilt angle of the ankle changed from (-7.90±3.11)° before operation to (-2.51±2.59)° week 2 postoperatively and (-2.46±2.42)° week 48 postoperatively, with statistically significant difference (P < 0.001). (2) There was no significant difference in talar tilt angle, tibiocrural angle, and tibial articular surface angle before and week 2 postoperatively. (3) No significant difference in the angle changes was detected between week 2 and week 48 postoperatively. (4) It is indicated that distal tibial tuberosity-high tibial osteotomy can not only correct genu varus but also improve ankle angle. This result remains stable after 48 weeks of weight-bearing activities.

Key words: knee osteoarthritis, distal tibial tuberosity-high tibial osteotomy, ankle joint, coronal plane, radiography

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