Akira Taniguchi1, Yoshinori Takakura2, Yasuhito Tanaka1, Hiroaki Kurokawa1, Kiyonori Tomiwa1, Takenori Matsuda1, Tsukasa Kumai1, Kazuya Sugimoto3. 1. Department of Orthopaedic Surgery, Nara Medical University, 840 Shijyo-cho, Kashihara, Nara 634-8522, Japan. E-mail address for A. Taniguchi: a-tani@naramed-u.ac.jp. 2. Department of Orthopaedic Surgery, Nishi Nara Central Hospital, 1-15 Tsurumai Nishi-cho, Nara-shi, Nara 631-0022, Japan. 3. Department of Orthopaedic Surgery, Nara Prefecture General Medical Center, 1-30-1 Hiramatsu, Nara-shi, Nara 631-0846, Nara, Japan.
Abstract
BACKGROUND: Treatment of osteonecrosis of the talus is challenging. Total talar replacement has the potential to restore the function of the ankle joint without an associated leg-length discrepancy. The purpose of the present study was to investigate postoperative function and pain after total talar replacement in patients with osteonecrosis of the talus. METHODS: Fifty-five ankles in fifty-one consecutive patients with osteonecrosis of the talus who were treated with a total talar replacement from 2005 to 2012 were included in the investigation. Scores according to the Japanese Society for Surgery of the Foot (JSSF) ankle-hindfoot scale and the Ankle Osteoarthritis Scale (AOS) were assessed before surgery and at the final follow-up evaluation. RESULTS: According to the JSSF ankle-hindfoot scale, the score for pain improved from a mean (and standard deviation) of 15 ± 9.4 points (range, 0 to 20 points) to 34 ± 5.6 points (range, 20 to 40 points); the score for function, from 21.2 ± 9.7 points (range, 4 to 38 points) to 45.1 ± 4.0 points (range, 37 to 50 points); the score for alignment, from 6.0 ± 2.8 points (range, 5 to 10 points) to 9.8 ± 0.9 points (range, 5 to 10 points); and the total score, from 43.1 ± 17.0 points (range, 11 to 68 points) to 89.4 ± 8.4 points (range, 76 to 100 points). According to the AOS scale, the score for "pain at its worst" improved from a mean of 6.1 ± 3.3 points (range, 0 to 9.9 points) to 2.0 ± 1.7 points (range, 0 to 6.3 points). CONCLUSIONS: Prosthetic talar replacement is a useful procedure for patients with osteonecrosis of the talus as it maintains ankle function.
BACKGROUND: Treatment of osteonecrosis of the talus is challenging. Total talar replacement has the potential to restore the function of the ankle joint without an associated leg-length discrepancy. The purpose of the present study was to investigate postoperative function and pain after total talar replacement in patients with osteonecrosis of the talus. METHODS: Fifty-five ankles in fifty-one consecutive patients with osteonecrosis of the talus who were treated with a total talar replacement from 2005 to 2012 were included in the investigation. Scores according to the Japanese Society for Surgery of the Foot (JSSF) ankle-hindfoot scale and the Ankle Osteoarthritis Scale (AOS) were assessed before surgery and at the final follow-up evaluation. RESULTS: According to the JSSF ankle-hindfoot scale, the score for pain improved from a mean (and standard deviation) of 15 ± 9.4 points (range, 0 to 20 points) to 34 ± 5.6 points (range, 20 to 40 points); the score for function, from 21.2 ± 9.7 points (range, 4 to 38 points) to 45.1 ± 4.0 points (range, 37 to 50 points); the score for alignment, from 6.0 ± 2.8 points (range, 5 to 10 points) to 9.8 ± 0.9 points (range, 5 to 10 points); and the total score, from 43.1 ± 17.0 points (range, 11 to 68 points) to 89.4 ± 8.4 points (range, 76 to 100 points). According to the AOS scale, the score for "pain at its worst" improved from a mean of 6.1 ± 3.3 points (range, 0 to 9.9 points) to 2.0 ± 1.7 points (range, 0 to 6.3 points). CONCLUSIONS: Prosthetic talar replacement is a useful procedure for patients with osteonecrosis of the talus as it maintains ankle function.
Authors: Markus Regauer; Mirjam Lange; Kevin Soldan; Steffen Peyerl; Sebastian Baumbach; Wolfgang Böcker; Hans Polzer Journal: World J Orthop Date: 2017-03-18
Authors: Jorge Javier Del Vecchio; Lucas Nicolás Chemes; Luciano Bertollotti; Mauricio Esteban Ghioldi; Eric Daniel Dealbera; Marcos Galli Serra; Walter Parizzia Journal: SAGE Open Med Case Rep Date: 2020-06-02