Comparison of the Japanese Orthopaedic Association Score and the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire Scores: Time-Dependent Changes in Patients with Cervical Spondylotic Myelopathy and Posterior Longitudinal Ligament

Object Ossification of the posterior longitudinal ligament (OPLL) can result in significant myelopathy. Surgical treatment for OPLL has been extensively documented in the literature, but less data exist on conservative management of this condition. Methods The authors conducted a systematic review to identify all reported cases of OPLL that were conservatively managed without surgery. Results The review yielded 11 published studies reporting on a total of 480 patients (range per study 1–359 patients) over a mean follow-up period of 14.6 years (range 0.4–26 years). Of these 480 patients, 348 (72.5%) were without myelopathy on initial presentation, whereas 76 patients (15.8%) had signs of myelopathy; in 56 cases (15.8%), the presence of myelopathy was not specified. The mean aggregate Japanese Orthopaedic Association score on presentation for 111 patients was 15.3. Data available for 330 patients who initially presented without myelopathy showed progression to myelopathy in 55 (16.7%), whereas the other 275 (83.3%) remained progression free. In the 76 patients presenting with myelopathy, 37 (48.7%) showed clinical progression, whereas 39 (51.5%) remained clinically unchanged or improved. Conclusions Patients who present without myelopathy have a high chance of remaining progression free. Those who already have signs of myelopathy at presentation may benefit from surgery due to a higher rate of progression over continued follow-up.

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The Reliability of an Arabic Version of the Modified Japanese Orthopaedic Association Score for Cervical Myelopathy

Spine Surgery and Related Research ◽

10.22603/ssrr.2020-0121 ◽

2020 ◽

Author(s):

Shereen I. Fawaz ◽

Mohamed A. Elgebeily ◽

Heba G. Saber ◽

Hany El Zahlawy

Keyword(s):

Cervical Myelopathy ◽

Japanese Orthopaedic Association ◽

Japanese Orthopaedic Association Score ◽

Arabic Version ◽

Association Score

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“Skip” corpectomy in the treatment of multilevel cervical spondylotic myelopathy and ossified posterior longitudinal ligament

Journal of Neurosurgery Spine ◽

10.3171/2009.7.spine08965 ◽

2010 ◽

Vol 12 (1) ◽

pp. 33-38 ◽

Cited By ~ 26

Author(s):

Sedat Dalbayrak ◽

Mesut Yilmaz ◽

Sait Naderi

Keyword(s):

Vertebral Body ◽

Cervical Spondylotic Myelopathy ◽

Japanese Orthopaedic Association ◽

Posterior Longitudinal Ligament ◽

Japanese Orthopaedic Association Score ◽

Cervical Lordosis ◽

The Mean ◽

Ossified Posterior Longitudinal Ligament ◽

Multilevel Cervical Spondylotic Myelopathy

Object The authors reviewed the results of “skip” corpectomy in 29 patients with multilevel cervical spondylotic myelopathy (CSM) and ossified posterior longitudinal ligament (OPLL). Methods The skip corpectomy technique, which is characterized by C-4 and C-6 corpectomy, C-5 osteophytectomy, and C-5 vertebral body preservation, was used for decompression in patients with multilevel CSM and OPLL. All patients underwent spinal fixation using C4–5 and C5–6 grafts, and anterior cervical plates were fixated at C-3, C-5, and C-7. Results The mean preoperative Japanese Orthopaedic Association score increased from 13.44 ± 2.81 to 16.16 ± 2.19 after surgery (p < 0.05). The cervical lordosis improved from 1.16 ± 11.74° to 14.36 ± 7.85° after surgery (p < 0.05). The complications included temporary hoarseness in 3 cases, dysphagia in 1 case, C-5 nerve palsy in 1 case, and C-7 screw pullout in 1 case. The mean follow-up was 23.2 months. The final plain radiographs showed improved cervical lordosis and fusion in all cases. Conclusions The authors conclude that the preservation of the C-5 vertebral body provided an additional screw purchase and strengthened the construct. The results of the current study demonstrated effectiveness and safety of the skip corpectomy in patients with multilevel CSM and OPLL.

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