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Dive into the research topics where Tsuyoshi Shinoda is active.

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Featured researches published by Tsuyoshi Shinoda.


International Orthopaedics | 2009

Postoperative acetabular retroversion causes posterior osteoarthritis of the hip.

Takahiko Kiyama; Masatoshi Naito; Kei Shiramizu; Tsuyoshi Shinoda

We retrospectively reviewed 68 hips in 62 patients with acetabular dysplasia who underwent curved periacetabular osteotomy. Among the 68 hips, 33 had acetabular retroversion (retroversion group) and 35 had anteversion (control group) preoperatively. All hips were evaluated according to the Harris hip score. Radiographic evaluations of acetabular retroversion and posterior wall deficiency were based on the cross-over sign and posterior wall sign, respectively. The clinical scores of the two groups at the final follow-up were similar. In the retroversion group, 12 hips had anteverted acetabulum postoperatively. The posterior wall sign disappeared in these hips, but remained in 21 hips with retroverted acetabulum postoperatively. Among the 21 hips with retroverted acetabulum, posterior osteoarthritis of the hip developed postoperatively in five hips. When performing corrective osteotomy for a dysplastic hip with acetabular retroversion, it is important to correct the acetabular retroversion to prevent posterior osteoarthritis of the hip due to posterior wall deficiency.RésuméNous avons revu de façon rétrospective 68 hanches chez 62 patients présentant une dysplasie acétabulaire et ayant bénéficié d’une ostéotomie péri-acétabulaire. Parmi ces 68 hanches, 33 avaient en préopératoire une rétroversion acétabulaire (groupe rétroversion) et 35 une antéversion (groupe contrôle). Toutes les hanches ont été évaluées selon le score de Harris. L’évaluation radiographique de la rétroversion acétabulaire et du mur postérieur déficient ont été basées sur le signe du croisement et le signe du mur extérieur. Les scores cliniques des deux groupes au suivi final était semblable. Dans le groupe rétroversion, 12 hanches avaient antéversé leur acétabulum en post-opératoire le signe du mur postérieur disparaissant, mais celui-ci restant présent dans 21 hanches avec un acétabulum en rétroversion post-opératoire. Parmi les 21 hanches avec acétabulum rétroversé une coxarthrose postérieure s’est développée à 5 ans post-opératoire. Lorsque l’on réalise une correction par ostéotomie pour une hanche dysplasique avec un acétabulum rétroversé, il est important de corriger cette rétroversion de façon à prévenir une coxarthrose secondaire due à la déficience du mur postérieur.


Journal of Shoulder and Elbow Surgery | 2009

A comparative study of surgical invasion in arthroscopic and open rotator cuff repair

Tsuyoshi Shinoda; Yozo Shibata; Teruaki Izaki; Takashi Shitama; Masatoshi Naito

SUMMARY This study investigated the degrees of surgical invasion for arthroscopic rotator cuff repair and open rotator cuff repair by evaluating the serum levels of C-reactive protein, hemoglobin, and interleukin-6. The study participants were 17 patients (group A) who underwent arthroscopic rotator cuff repair and 15 patients (group O) who underwent open rotator cuff repair by the same surgeon. The difference in the size of the rotator cuff tear between the 2 groups was not significant (P > .05). No significant differences were recorded in the postoperative serum levels of C-reactive protein and hemoglobin between the 2 groups (P > .05). The mean postoperative serum level of interleukin-6 was significantly lower in group A than in group O (P < .01). Our findings indicate that arthroscopic rotator cuff repair is less invasive than open rotator cuff repair.


International Orthopaedics | 2009

Periacetabular osteotomy for the treatment of dysplastic hip with Perthes-like deformities.

Tsuyoshi Shinoda; Masatoshi Naito; Yoshinari Nakamura; Takahiko Kiyama

We retrospectively evaluated 17 hips in 16 patients who underwent a periacetabular osteotomy for the treatment of dysplastic hip with Perthes-like deformities. These residual deformities were graded using the Stulberg classification system. There were three class II hips, 11 class III hips and three class IV hips preoperatively. The average age of the patients at surgery was 36.9 years and the average follow-up was 6.6 years. The average Harris hip score significantly improved from the preoperative value of 68.2 points to 91.1 points postoperatively. The average postoperative range of motion in all directions did not change significantly from the preoperative value. The average postoperative Harris hip score of class IV hips was smaller than that of the class II or class III hips. The standard radiographic evaluations also showed significant improvements postoperatively. Periacetabular osteotomy without combined femoral osteotomies, as a treatment for patients with Perthes-like deformities, produced good clinical and radiographic results.RésuméNous avons évalué de façon rétrospective 17 hanches chez 16 patients qui ont bénéficié d’une ostéotomie périacétabulaire pour le traitement de hanche dysplasiques avec des déformations de type Perthes. Les déformations résiduelles ont été classées selon la méthode de Stulberg. Il y avait en préopératoire 3 hanches de type II, 11 de type III et 3 de type IV. L’âge moyen des patients au moment de l’intervention était de 36.9 ans et le suivi moyen de 6.6 ans. Le score moyen de Harris a été amélioré de façon significative passant de 68.2 points à 91.1 points en post opératoire. La mobilité post opératoire n’a pas été affectée de façon significative par rapport à la mobilité préopératoire. Le score de Harris moyen post opératoire des hanches de type IV est légèrement inférieur à ceux de type II ou III. Les radiographies standards ont montré une amélioration significative en post opératoire. L’ostéotomie périacétabulaire sans qu’elle soit associée à une ostéotomie fémorale est un traitement qui donne donne de bons résultats tant sur le plan clinique que radiographique sur des hanches déformées de type Perthes.


Orthopedics | 2008

Effects of the lateral approach on blood flow of the gluteus medius and abductor function in total hip arthroplasty.

Hiroshi Shitama; Masatoshi Naito; Tsuyoshi Shinoda; Takashi Shitama

Total hip arthroplasty was performed in 19 patients using the lateral approach. Laser Doppler flowmetry was used to measure the blood flow in the anterior and posterior parts of the gluteus medius. The anterior part was split and detached. The posterior part was left intact. The blood flow in the gluteus medius of the anterior part was decreased by 15.4%, while that of the posterior part remained constant during surgery. Postoperatively, the Trendelenburg sign remained positive in 3 of 16 patients. No correlations were observed between a positive Trendelenburg sign and reduction in blood flow of the gluteus medius.


Journal of Shoulder and Elbow Surgery | 2004

Pressure between the humeral head and the subscapularis tendon after the modified Boytchev procedure

Yozo Shibata; Noriaki Honjo; Tsuyoshi Shinoda; Takafumi Kumano; Masatoshi Naito


Journal of Shoulder and Elbow Surgery | 2004

Gonococcal osteomyelitis of the shoulder extended from gonococcal arthritis: diagnosis by a polymerase chain reaction assay

Yozo Shibata; Takafumi Kumano; Tsuyoshi Shinoda; Hirofumi Hanada; Takashi Notomi; Ariaki Nagayama; Masatoshi Naito


Orthopaedics and Traumatology | 2011

A Case of Bone Graft for Glenoid Component Loosening in Total Shoulder Arthroplasty

Kenshi Satomura; Teruaki Izaki; Yozo Shibata; Motoyuki Fujisawa; Tsuyoshi Shinoda; Masatoshi Naito


Katakansetsu | 2011

Treatment of Dialysis-related Amyloidosis of the Shoulder

Teruaki Izaki; Takeshi Teratani; Masatoshi Naito; Yozo Shibata; Tsuyoshi Shinoda; Motoyuki Fujisawa; Takafumi Kumano


福岡大学医学紀要 = Medical Bulletin of Fukuoka University | 2010

Arthroscopic Complete Capsular Release for the Treatment of Frozen Shoulder

Teruaki Izaki; Yozo Shibata; Motoyuki Fujisawa; Takafumi Kumano; Tsuyoshi Shinoda; Takeshi Teratani; Masatoshi Naito


Orthopaedics and Traumatology | 2010

Long-term Follow-up of Two Cases of Latissimus Dorsi Transfer for Irreparable Rotator Cuff Tears

Akihiko Kura; Yozo Shibata; Teruaki Izaki; Motoyuki Fujisawa; Tsuyoshi Shinoda; Takafumi Kumano; Takeshi Teratani; Yasuhiro Kojima; Masatoshi Naito

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