scholarly journals Comparison of Treatment Results for Mallet Finger Fractures in Children Between Low-Intensity Pulsed Ultrasound Stimulation and Ishiguro’s Method

Hand ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Tsuyoshi Ota ◽  
Soichiro Itoh ◽  
Yoshihiko Matsuyama
Keyword(s):  
Articular Surface ◽  
Type I ◽  
Mallet Finger ◽  
Pulsed Ultrasound ◽  
Treatment Results ◽  
Low Intensity Pulsed Ultrasound ◽  
Low Intensity ◽  
Fractures In Children ◽  
Mallet Fracture ◽  
Pin Fixation

Background: We compared the treatment results for displaced mallet finger fractures in children between low-intensity pulsed ultrasound (LIPUS) stimulation and Ishiguro’s method, which involves extension block and arthrodesis of the distal interphalangeal (DIP) joint with pinning. Methods: Eleven cases (5 females and 6 males; average age, 13.5 years) of mallet finger were operated with Ishiguro’s method, and 8 cases (3 females and 5 males; average age, 13.0 years) were treated with LIPUS stimulation. Lateral radiographs were used to determine the distance of fragment displacement and the percentage of the articular surface involved in the fragments. Functional outcomes in flexion and extension and those estimated using Crawford’s evaluation criteria at the final visits were assessed in each group. Results: The duration needed for fracture healing was longer, however, active extension and flexion of the DIP joint were significantly larger in the LIPUS group compared with those in the pinning group. Functional recovery was excellent in all cases in the LIPUS group; however, recovery was good in 3 cases and excellent in 8 cases in the pinning group. Extension of the DIP joint was significantly larger when pins were removed in 35 or lesser days postoperatively compared with cases in which pin fixation was continued for more than 35 days. Conclusions: LIPUS therapy may be recommended as an option to treat type I mallet finger in children for whom initiation of treatment was delayed up to 8 weeks. When Ishiguro’s method is applied to the displaced mallet fracture in children, arthrodesis of the DIP joint for more than 5 weeks should be avoided to prevent flexion contracture.

scholarly journals Conservative Treatment of Chronic Mallet Fracture Non-union after Failed Pin Fixation

2020 ◽  
Vol 3 (1) ◽  
pp. 25-28
Author(s):  
Hara A
Keyword(s):  
Conservative Treatment ◽  
Articular Surface ◽  
Functional Results ◽  
Fracture Site ◽  
Distal Phalanx ◽  
Joint Surface ◽  
Mallet Finger ◽  
Non Union ◽  
Mallet Fracture ◽  
Pin Fixation

Introduction: Operative treatment of mallet finger fractures is generally recommended for patients in whom more than one-third of the articular surface is involved with volar subluxation. We present a case of conservative treatment with chronic nonunion of a mallet finger fracture after failed mallet finger surgery. Presentation of Case: A 16-year-old boy presented with a bony fragment (mallet formation) of his left long finger. The fragment occupied 40% of the articular surface, with volar subluxation of the distal phalanx. Percutaneous needle curettage of the fracture site and pinning were performed. Six weeks later, the fragment was displaced and had rotated. Hence, all the pins were removed, and a splint was applied. The fracture displayed nonunion and volar subluxation of the distal phalanx. The patient continued with the splinting, and the fracture finally healed. At 27 months after the surgery, radiological examination showed very good remodeling of the distal interphalangeal joint surface with anatomic joint congruence. Functional results at 27 months were good according to Crawford’s classification. Conclusion: Chronic nonunion of a mallet finger can be cured conservatively even when a fracture gap is seen along with displacement of the fragment and volar subluxation of the distal phalanx.

I–1 Low-Intensity Pulsed Ultrasound (LIPUS) Treatment Results With Targeting Method Using Ultrasonography for Fresh Fractures Humerus and Femur

2019 ◽  
Vol 33 (10) ◽  
pp. S2
Author(s):  
Takaki Motoyuki ◽  
Arai Yukihiro ◽  
Takenaka Nobuyuki ◽  
Katoh Narutaka ◽  
Asahara Tomohiko ◽  
...  
Keyword(s):  
Pulsed Ultrasound ◽  
Treatment Results ◽  
Low Intensity Pulsed Ultrasound ◽  
Low Intensity

Low-intensity Pulsed Ultrasound Improves Erectile Function in Streptozotocin-induced Type I Diabetic Rats

Urology ◽  
2015 ◽  
Vol 86 (6) ◽  
pp. 1241.e11-1241.e18 ◽  
Author(s):  
Hongen Lei ◽  
Hua Xin ◽  
Ruili Guan ◽  
Yongde Xu ◽  
Huixi Li ◽  
...  
Keyword(s):  
Erectile Function ◽  
Diabetic Rats ◽  
Type I ◽  
Pulsed Ultrasound ◽  
Low Intensity Pulsed Ultrasound ◽  
Low Intensity

scholarly journals Improved activity of MC3T3-E1 cells by the exciting piezoelectric BaTiO3/TC4 using low-intensity pulsed ultrasound

2021 ◽  
Vol 6 (11) ◽  
pp. 4073-4082
Author(s):  
Kunzhan Cai ◽  
Yilai Jiao ◽  
Quan Quan ◽  
Yulin Hao ◽  
Jie Liu ◽  
...  
Keyword(s):  
Pulsed Ultrasound ◽  
Low Intensity Pulsed Ultrasound ◽  
Low Intensity

scholarly journals Osteocytes as main responders to low-intensity pulsed ultrasound treatment during fracture healing

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tatsuya Shimizu ◽  
Naomasa Fujita ◽  
Kiyomi Tsuji-Tamura ◽  
Yoshimasa Kitagawa ◽  
Toshiaki Fujisawa ◽  
...  
Keyword(s):  
Fracture Healing ◽  
Transcriptional Control ◽  
Target Genes ◽  
Pulsed Ultrasound ◽  
Activated T Cells ◽  
In Vivo Models ◽  
Low Intensity Pulsed Ultrasound ◽  
Low Intensity ◽  
Ultrasound Stimulation

AbstractUltrasound stimulation is a type of mechanical stress, and low-intensity pulsed ultrasound (LIPUS) devices have been used clinically to promote fracture healing. However, it remains unclear which skeletal cells, in particular osteocytes or osteoblasts, primarily respond to LIPUS stimulation and how they contribute to fracture healing. To examine this, we utilized medaka, whose bone lacks osteocytes, and zebrafish, whose bone has osteocytes, as in vivo models. Fracture healing was accelerated by ultrasound stimulation in zebrafish, but not in medaka. To examine the molecular events induced by LIPUS stimulation in osteocytes, we performed RNA sequencing of a murine osteocytic cell line exposed to LIPUS. 179 genes reacted to LIPUS stimulation, and functional cluster analysis identified among them several molecular signatures related to immunity, secretion, and transcription. Notably, most of the isolated transcription-related genes were also modulated by LIPUS in vivo in zebrafish. However, expression levels of early growth response protein 1 and 2 (Egr1, 2), JunB, forkhead box Q1 (FoxQ1), and nuclear factor of activated T cells c1 (NFATc1) were not altered by LIPUS in medaka, suggesting that these genes are key transcriptional regulators of LIPUS-dependent fracture healing via osteocytes. We therefore show that bone-embedded osteocytes are necessary for LIPUS-induced promotion of fracture healing via transcriptional control of target genes, which presumably activates neighboring cells involved in fracture healing processes.

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