Motor Weakness of Right Ankle Dorsiflexion Caused by Increasing Size of Sacroiliac Joint Cyst after Posterior Lumbar Interbody Fusion in a Patient with Spinal Stenosis: A Case Report.
10.4184/jkss.2015.22.4.178
- Author:
Ji Eun KWON
1
;
Young Joon AHN
;
Bo Kyu YANG
;
Seung Rim YI
;
Se Hyuk LIM
;
Ye Hyun LEE
;
Hae Min KIM
Author Information
1. Department of Orthopeadic Surgery, National Police Hospital, Seoul, Korea. osahnyj@lycos.co.kr
- Publication Type:Case Report
- Keywords:
Sacroiliac joint;
Cyst;
Muscle weakness;
Spinal stenosis;
Spinal fusion
- MeSH:
Ankle*;
Female;
Follow-Up Studies;
Humans;
Low Back Pain;
Magnetic Resonance Imaging;
Middle Aged;
Muscle Weakness;
Sacroiliac Joint*;
Sciatica;
Spinal Canal;
Spinal Fusion;
Spinal Stenosis*
- From:Journal of Korean Society of Spine Surgery
2015;22(4):178-182
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
STUDY DESIGN: Case report OBJECTIVES: To report a case of motor weakness caused by the increasing size of a sacroiliac joint cyst after spinal fusion. SUMMARY OF LITERATURE REVIEW: There have been no reports on the increased size of a sacroiliac joint cyst and motor weakness after spinal fusion. MATERIALS AND METHODS: A 63-year-old female was admitted with low back pain and right sciatica. Magnetic resonance imaging (MRI) findings showed the spinal canal narrowing at L4-5 and a cystic lesion on the right sacroiliac joint. After surgery, the symptoms were relieved. RESULTS: One month after the operation, motor function had worsened to grade 4. Follow-up MRI revealed an increase in the size of the cystic lesion. Selective nerve root blocks were performed. There was gradual improvement, and the motor grade reached grade 5 seven months after the operation. CONCLUSIONS: We recommend that surgeons evaluate the adjacent segmental lesion by MRI before performing spinal fusion.
