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Coronal and sagittal alignment of ankle joint is significantly affected by high tibial osteotomy.
Oh, Byung Hak; Seo, Kyung Deok; Heo, Youn Moo; Kim, Tae Kyun; Choi, Jae Kyu; Song, Jae Hwang.
Afiliação
  • Oh BH; Department of Orthopedic Surgery, Konyang University Hospital, 158 Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea.
  • Seo KD; Department of Orthopedic Surgery, Konyang University Hospital, 158 Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea.
  • Heo YM; Department of Orthopedic Surgery, Konyang University Hospital, 158 Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea.
  • Kim TK; Department of Orthopedic Surgery, Konyang University Hospital, 158 Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea.
  • Choi JK; Department of Orthopedic Surgery, Konyang University Hospital, 158 Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea.
  • Song JH; Department of Orthopedic Surgery, Konyang University Hospital, 158 Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea. songjajj@hanmail.net.
Knee Surg Sports Traumatol Arthrosc ; 31(11): 4878-4885, 2023 Nov.
Article em En | MEDLINE | ID: mdl-37572140
ABSTRACT

PURPOSE:

Changes in coronal and sagittal alignment of the knee joint after HTO have been reported in several previous studies. However, only few of them investigated the changes only on coronal alignment of the ankle joint. The purpose of this study was to investigate changes in both coronal and sagittal alignment of the ankle joint after HTO.

METHODS:

46 patients (49 cases) who underwent HTO were retrospectively analyzed. Preoperative and postoperative lower extremity scanogram and EOS imaging system were investigated. The hip-knee-ankle (HKA) angle, medial proximal tibial angle (MPTA), and knee tibia plafond angle (KTPA) were measured by scanogram to evaluate coronal alignment of the knee. Tibial anterior surface angle (TAS), talar tilt (TT), tibial plafond inclination (TPI), and ankle joint axis point on the weight-bearing-line (AAWBL) ratio were measured by scanogram to investigate coronal alignment of the ankle. Knee lateral ankle surface angle (KLAS) and tibial lateral surface angle (TLS) were measured by EOS to evaluate sagittal alignment of the ankle.

RESULTS:

Varus alignment of the knee was corrected by significant change of the HKA angle (5.8 ± 3.1° vs. - 2.1 ± 2.8°, p < 0.001), MPTA (85.7 ± 2.9° vs. 91.7 ± 3.3°, p < 0.001), and KTPA (5.0 ± 3.5° vs. - 2.1 ± 4.2°, p < 0.001) after HTO. Regarding the ankle coronal alignment, there was significant change in TPI (3.9 ± 3.4° vs. - 0.9 ± 3.8°, p < 0.001) and AAWBL ratio (45.5 ± 14.7% vs. 61.6 ± 13.3%, p < 0.001). In sagittal alignment of the ankle, KLAS (4.5 ± 3.1° vs. 7.7 ± 3.7°, p < 0.001) significantly increased. Among the variables, the amount of correction in AAWBL ratio (R = 0.608, p < 0.01) showed strongest relationship with tibial correction angle.

CONCLUSION:

Based on the present study, coronal and sagittal alignment of ankle joint was significantly affected by HTO. After HTO, AAWBL ratio increased due to lateralization of the ankle joint axis, and KLAS increased due to increased posterior tibial slope. LEVEL OF EVIDENCE III.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Knee Surg Sports Traumatol Arthrosc Assunto da revista: MEDICINA ESPORTIVA / TRAUMATOLOGIA Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Knee Surg Sports Traumatol Arthrosc Assunto da revista: MEDICINA ESPORTIVA / TRAUMATOLOGIA Ano de publicação: 2023 Tipo de documento: Article