1.MRI Observations of Patellar Tendon Length Change after ACL Reconstruction with Hamstring Autografts
LI HAO-HUAN ; ZHANG XIAO-LONG ; Ooi GOTA ; Hironori NUMAZAKI ; Sekiguchi MIHO ; Konno SHIN-ICHI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2017;37(4):577-581
The post-operative patellar tendon length was studied to evaluate the possible tendon length change after anterior cruciate ligament (ACL) reconstruction with hamstring autografts.The Insall-Salvati index,modified Insall-Salvati index,curved modified Insall-Salvati index and Caton-Deschamps index were observed by MRI during a follow-up period of 12 weeks on 20 ACL reconstructed knees.The results showed no patellar baja or alta pre-existed on those ACL injured patients.After a follow-up period of 12 weeks,no patellar tendon length change was observed.It is suggested that the change of patella was not the primary reason that may contribute to the premature patellofemoral joint osteoarthritis after ACL reconstruction.
2.Minimally Invasive Surgery for Osteoid Osteoma of the Cervical Spine Using Microendoscopic Discectomy System.
Yukako NAKAMURA ; Shoji YABUKI ; Shin Ichi KIKUCHI ; Shin Ichi KONNO
Asian Spine Journal 2013;7(2):143-147
We report herein the case of an 18-year-old man who underwent endoscopic resection for an osteoid osteoma in the seventh cervical facet joint. The patient had experienced right neck pain for approximately one year, but no neurological abnormalities were noted. Cervical magnetic resonance imaging suggested an osteoid osteoma in the superior articular process of the seventh cervical vertebra. The tumor was resected microendoscopically. Operative time was 1 hour 29 minutes, and blood loss was 5 mL. During the two years since surgery, the patient has remained pain free with no cervical spine instability. We thus propose microendoscopic surgery for osteoid osteoma developing in a posterior element of the cervical spine is a potentially effective operative procedure.
Diskectomy
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Humans
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Magnetic Resonance Imaging
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Neck Pain
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Operative Time
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Osteoma, Osteoid
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Spine
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Surgical Procedures, Operative
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Zygapophyseal Joint
3.Surgical Outcomes of Cervical Myelopathy in Patients with Athetoid Cerebral Palsy: A 5-Year Follow-Up.
Kazuyuki WATANABE ; Koji OTANI ; Takuya NIKAIDO ; Kinshi KATO ; Hiroshi KOBAYASHI ; Shoji YABUKI ; Shin Ichi KIKUCHI ; Shin Ichi KONNO
Asian Spine Journal 2017;11(6):928-934
STUDY DESIGN: Observational cohort study. PURPOSE: To assess the surgical outcomes of posterior decompression and fusion for cervical myelopathy in patients with athetoid cerebral palsy. OVERVIEW OF LITERATURE: Patients with athetoid cerebral palsy demonstrate involuntary movements and develop severe cervical spondylosis with kyphosis. In these patients, surgery is often performed at an early age because of myelopathy. A few studies have reported about the long-term outcomes of surgical treatment; however, they contain insufficient information. METHODS: From 2003 to 2008, 13 patients with cervical myelopathy due to athetoid cerebral palsy underwent posterior fusion surgery and were included in this study. The Japanese Orthopaedic Association (JOA) score, neck disability index (NDI), C2–7 angle on radiography, and need for additional surgical treatment were examined at 1 and 5 years postoperatively. RESULTS: The mean C2–7 angle was −10.5°±21.1° preoperatively and was corrected to −2.9°±13.5° immediately postoperatively. This improvement was maintained for 5 years. The JOA score was 9.5±2.5 preoperatively and 12.2±1.7 at the 5-year follow-up. NDI was 17±6.9 preoperatively and 16±7.5 at the 5-year follow-up. Patient satisfaction with surgery on a 100-point scale was 62.2±22.5 at the 5-year follow-up. Three patients needed additional surgery for loosening of screws. These results demonstrate good surgical outcomes for posterior fusion at 5 years. CONCLUSIONS: Posterior decompression and fusion should be considered a viable option for cervical myelopathy in patients with athetoid cerebral palsy.
Asian Continental Ancestry Group
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Cerebral Palsy*
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Cohort Studies
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Decompression
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Dyskinesias
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Follow-Up Studies*
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Humans
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Kyphosis
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Neck
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Patient Satisfaction
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Radiography
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Spinal Cord Diseases*
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Spine
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Spondylosis
4.Existence of a Neuropathic Pain Component in Patients with Osteoarthritis of the Knee.
Seiji OHTORI ; Sumihisa ORITA ; Masaomi YAMASHITA ; Tetsuhiro ISHIKAWA ; Toshinori ITO ; Tomonori SHIGEMURA ; Hideki NISHIYAMA ; Shin KONNO ; Hideyuki OHTA ; Masashi TAKASO ; Gen INOUE ; Yawara EGUCHI ; Nobuyasu OCHIAI ; Shunji KISHIDA ; Kazuki KUNIYOSHI ; Yasuchika AOKI ; Gen ARAI ; Masayuki MIYAGI ; Hiroto KAMODA ; Miyako SUZKUKI ; Junichi NAKAMURA ; Takeo FURUYA ; Gou KUBOTA ; Yoshihiro SAKUMA ; Yasuhiro OIKAWA ; Masahiko SUZUKI ; Takahisa SASHO ; Koichi NAKAGAWA ; Tomoaki TOYONE ; Kazuhisa TAKAHASHI
Yonsei Medical Journal 2012;53(4):801-805
PURPOSE: Pain from osteoarthritis (OA) is generally classified as nociceptive (inflammatory). Animal models of knee OA have shown that sensory nerve fibers innervating the knee are significantly damaged with destruction of subchondral bone junction, and induce neuropathic pain (NP). Our objective was to examine NP in the knees of OA patients using painDETECT (an NP questionnaire) and to evaluate the relationship between NP, pain intensity, and stage of OA. MATERIALS AND METHODS: Ninety-two knee OA patients were evaluated in this study. Pain scores using Visual Analogue Scales (VAS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), painDETECT, duration of symptoms, severity of OA using the Kellgren-Lawrence (KL) system, and amount of joint fluid were evaluated and compared using a Spearman's correlation coefficient by rank test. RESULTS: Our study identified at least 5.4% of our knee OA patients as likely to have NP and 15.2% as possibly having NP. The painDETECT score was significantly correlated with the VAS and WOMAC pain severity. Compared with the painDETECT score, there was a tendency for positive correlation with the KL grade, and tendency for negative correlation with the existence and amount of joint fluid, but these correlations were not significant. CONCLUSION: PainDETECT scores classified 5.4% of pain from knee OA as NP. NP tended to be seen in patients with less joint fluid and increased KL grade, both of which corresponded to late stages of OA. It is important to consider the existence of NP in the treatment of knee OA pain.
Aged
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Aged, 80 and over
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Female
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Humans
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Knee/pathology/physiopathology
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Male
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Middle Aged
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Neuralgia/*physiopathology
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Osteoarthritis, Knee/*physiopathology