iarjmcrIARJMCRIARJMCR2709-3220https://doi.org/10.47310/iarjmcr.2021.v02i02.011Spinal Stenosis with Kyphotic Deformity in Achondroplasia Patient: A Case ReportRomaniyantoJohanDwiDepartement of Orthopaedic & Traumatology Faculty of Medicine Sebelas Maret University, Soeharso Orthopaedic Hospital, Surakarta, IndonesiaResident of Orthopaedic & Traumatology Faculty of Medicine, Sebelas Maret University, IndonesiaAchondroplasia refers to the absence of cartilage development, and was first described in 1878. Achondroplasia is the most prevalent type of human short-limbed dwarfism caused by FGFR3 gene abnormalities, affecting one in every 30,000 live births worldwide. This case report describes a case of a 21 years old male patient with Achondroplasia with lumbar spinal stenosis of vertebrae Th12-L1, L1-L2, L2-L3 and kyphotic deformity. Patient had a surgical treatment with decompression laminectomy and posterior stabilization fusion. There was no neurovascular complication following the surgery. Mean VAS score of the leg pain improved from 5 to 2. ODI scores also improved consecutively from 18 out of 45 (40%) to 8 out of 45 (17,7%). The sensory function at the Th12 and L3 dermatome region of the leg was improved, as well as the radiological evaluation.