Functional outcomes in duchenne muscular dystrophy scoliosis: Comparison of the differences between surgical and nonsurgical treatment

Kyung Soo Suk, Byung Ho Lee, Hwan Mo Lee, Seong Hwan Moon, Young Chul Choi, Dong Eun Shin, Jung Won Ha, Kwang Min Song, Hak Sun Kim

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Background: While most studies of Duchenne muscular dystrophy scoliosis focus on technical and radiographic indices, functional status is amore important factor to consider in themanagement of Duchenne muscular dystrophy. The objectives of the current study were to compare the pulmonary function, radiographic outcome, and functional recovery, with use of validated questionnaires, in surgically and nonsurgically treated patients with Duchenne muscular dystrophy who have scoliosis. Methods: Sixty-six patients (forty treated surgically and twenty-six treated nonsurgically) with aminimumfollow-up of two years were included in this study. Forced vital capacity, radiographic parameters (the Cobb angle, lordosis, and pelvic obliquity), and functional status, according to the modified Rancho scale and manual muscle test, were measured preoperatively and at the time of the final follow-up. TheMuscular Dystrophy Spine Questionnaire (MDSQ) was completed at the final follow-up evaluation. Results: Pulmonary function, functional scores (manual muscle test and modified Rancho scale), and radiographic measurements, except for lordosis, were similar for both groups at the time of the initial consultation (p > 0.05). At the time of the final follow-up, all radiographic parameters were significantly improved in the surgical group compared with the nonsurgical group. The mean score (and standard deviation) on the manual muscle test was not significantly different between the surgical and nonsurgical groups (23.2 ± 8.3 versus 22.8 ± 6.3; p = 0.828). The mean score on the modified Rancho scale also showed similar results in the groups (3.9 ± 0.3 and 4.04 ± 0.3, respectively; p = 0.088). The surgical group had higher mean MDSQ scores than the nonsurgical group (35.1 ± 14.7 and 26.9 ± 9.9, respectively; p = 0.008). Both groups showed a decrease in forced vital capacity at the time of the final follow-up, but the deterioration of forced vital capacity was significantly slower (p = 0.035) in the surgical group (268 ± 361 mL) than in the nonsurgical group (536 ± 323 mL). Conclusions: Surgery in patients who had Duchenne muscular dystrophy with scoliosis improved function and decreased the rate of deterioration of forced vital capacity compared with patients treated conservatively. However, the muscle power and forced vital capacity decreased in both groups.

Original languageEnglish
Pages (from-to)409-415
Number of pages7
JournalJournal of Bone and Joint Surgery
Issue number5
Publication statusPublished - 2014 Mar 5

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine


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