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Long-term results of the anterior floating method for cervical myelopathy caused by ossification of the posterior longitudinal ligament.
Spine (Phila Pa 1976). 2001 Feb 01; 26(3):241-8.S

Abstract

STUDY DESIGN

Results of the anterior floating method used to decompress ossification of the posterior longitudinal ligament were studied for an average postoperative interval of 13 years.

OBJECTIVE

To investigate the long-term results of the anterior floating method used to manage ossification of the posterior longitudinal ligament.

SUMMARY OF BACKGROUND DATA

The anterior floating method is a technique that differs from the extirpation method used to manage ossification of the posterior longitudinal ligament. Reports of the long-term results from anterior decompression used to manage cervical ossification of the posterior longitudinal ligament are rare.

METHODS

The anterior floating method was used to decompress cervical ossification of the posterior longitudinal ligament in 63 patients. These patients were followed for more than 10 years with neurologic evaluations using a scoring system proposed by the Japanese Orthopedic Association (JOA score).

RESULTS

The recovery rate was 66.5% at 10 years and 59.3% at 13 years, the time of the final survey. Operative outcomes most closely reflected the preoperative duration and severity of myelopathy (JOA score) and the preoperative cross-sectional area of the spinal cord. There was no correlation with the canal narrowing ratio or the thickness of ossification of the posterior longitudinal ligament. Delayed deterioration was attributed to an original inadequate decompression and progression of ossification of the posterior longitudinal ligament outside the original operative field. There was no evidence of significant recurrent ossification of the posterior longitudinal ligament within the margins of prior decompression.

CONCLUSIONS

The anterior floating method appears to yield adequate long-term outcomes when used to manage ossification of the posterior longitudinal ligament.

Authors+Show Affiliations

Department of Orthopedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan. matsuokat@aol.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

11224859

Citation

Matsuoka, T, et al. "Long-term Results of the Anterior Floating Method for Cervical Myelopathy Caused By Ossification of the Posterior Longitudinal Ligament." Spine, vol. 26, no. 3, 2001, pp. 241-8.
Matsuoka T, Yamaura I, Kurosa Y, et al. Long-term results of the anterior floating method for cervical myelopathy caused by ossification of the posterior longitudinal ligament. Spine. 2001;26(3):241-8.
Matsuoka, T., Yamaura, I., Kurosa, Y., Nakai, O., Shindo, S., & Shinomiya, K. (2001). Long-term results of the anterior floating method for cervical myelopathy caused by ossification of the posterior longitudinal ligament. Spine, 26(3), 241-8.
Matsuoka T, et al. Long-term Results of the Anterior Floating Method for Cervical Myelopathy Caused By Ossification of the Posterior Longitudinal Ligament. Spine. 2001 Feb 1;26(3):241-8. PubMed PMID: 11224859.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Long-term results of the anterior floating method for cervical myelopathy caused by ossification of the posterior longitudinal ligament. AU - Matsuoka,T, AU - Yamaura,I, AU - Kurosa,Y, AU - Nakai,O, AU - Shindo,S, AU - Shinomiya,K, PY - 2001/2/27/pubmed PY - 2001/5/30/medline PY - 2001/2/27/entrez SP - 241 EP - 8 JF - Spine JO - Spine VL - 26 IS - 3 N2 - STUDY DESIGN: Results of the anterior floating method used to decompress ossification of the posterior longitudinal ligament were studied for an average postoperative interval of 13 years. OBJECTIVE: To investigate the long-term results of the anterior floating method used to manage ossification of the posterior longitudinal ligament. SUMMARY OF BACKGROUND DATA: The anterior floating method is a technique that differs from the extirpation method used to manage ossification of the posterior longitudinal ligament. Reports of the long-term results from anterior decompression used to manage cervical ossification of the posterior longitudinal ligament are rare. METHODS: The anterior floating method was used to decompress cervical ossification of the posterior longitudinal ligament in 63 patients. These patients were followed for more than 10 years with neurologic evaluations using a scoring system proposed by the Japanese Orthopedic Association (JOA score). RESULTS: The recovery rate was 66.5% at 10 years and 59.3% at 13 years, the time of the final survey. Operative outcomes most closely reflected the preoperative duration and severity of myelopathy (JOA score) and the preoperative cross-sectional area of the spinal cord. There was no correlation with the canal narrowing ratio or the thickness of ossification of the posterior longitudinal ligament. Delayed deterioration was attributed to an original inadequate decompression and progression of ossification of the posterior longitudinal ligament outside the original operative field. There was no evidence of significant recurrent ossification of the posterior longitudinal ligament within the margins of prior decompression. CONCLUSIONS: The anterior floating method appears to yield adequate long-term outcomes when used to manage ossification of the posterior longitudinal ligament. SN - 0362-2436 UR - https://www.unboundmedicine.com/medline/citation/11224859/Long_term_results_of_the_anterior_floating_method_for_cervical_myelopathy_caused_by_ossification_of_the_posterior_longitudinal_ligament_ L2 - http://dx.doi.org/10.1097/00007632-200102010-00008 DB - PRIME DP - Unbound Medicine ER -