1 Overview

We have 315 patients in this database. I only cleaned and anaylyzed patients that were already entered here. We have 8 years of deformity surgeries by Dr. Turner. January 11, 2016 to December 09, 2023

Disclaimer: I used the patients already entered in the database by someone else.

In one line: a 315-patient surgical deformity cohort (2016–2023), predominantly lumbar and degenerative, led by SPONDY as the most common primary diagnosis and TLPFF as the most common primary procedure.

2 Preoperative diagnosis

Counts below reflect the primary preoperative diagnosis (preop_dx1). Note: SPINAL DEFORMITY and DEFORMITY have been merged, as they refer to the same entity in the database.

Primary diagnosis Patients Percent
SPONDY 104 33.0
SCOLIOSIS 35 11.1
KYPHOSIS 25 7.9
ALD 22 7.0
DEFORMITY 21 6.7
DSC 17 5.4
STENOSIS 17 5.4
KYPHOSCOLIOSIS 13 4.1
HARDWARE FAILURE 9 2.9
DDD 6 1.9
PJK 6 1.9
AIS 4 1.3
ASC 3 1.0
FBS 3 1.0
MSPONDY 3 1.0
MYELOPATHY 3 1.0
ROD FRACTURE 3 1.0
SCHEUERMANN KYPHOSIS 3 1.0
OSTEODISCITIS 2 0.6
PJF 2 0.6
PSEUDOARTHROSIS 2 0.6
ASD 1 0.3
ASP 1 0.3
DD 1 0.3
DJF 1 0.3
DJK 1 0.3
FD 1 0.3
FRACTURE 1 0.3
LBP 1 0.3
RADICULOPATHY 1 0.3
SPINAL ARACHNOID CYST 1 0.3
SPONDYLOSIS 1 0.3
SYNOVIAL CYST 1 0.3

Diagnoses below the top of the list each represent a small share of the cohort (most under 3%).

2.1 Associated diagnoses (any mention across dx1–dx4)

Because each patient can carry up to four diagnoses this is the total count of diagnosis when counting every diagnostic field together, stenosis becomes far more prominent as an associated diagnosis (41 mentions), alongside spondylolisthesis (120), scoliosis (42), and kyphosis (34)

Diagnosis Mentions
SPONDY 120
SCOLIOSIS 42
STENOSIS 41
KYPHOSIS 34
ALD 25
DEFORMITY 22
DSC 21
KYPHOSCOLIOSIS 13
HARDWARE FAILURE 12
DDD 9
MYELOPATHY 9
PJK 7
RADICULOPATHY 7
PSEUDOARTHROSIS 5
AIS 4
DD 4
MSPONDY 4
ASC 3
FBS 3
INSTABILITY 3
ROD FRACTURE 3
SCHEUERMANN KYPHOSIS 3
SYNOVIAL CYST 3
DJF 2
FRACTURE 2
LISTHESIS 2
OSTEODISCITIS 2
PJF 2
SPI 2
ASD 1
ASP 1
BACK PAIN 1
C1 FRACTURE 1
CONGENITAL NARROW CANAL 1
DJK 1
FD 1
KYPHOTIC DEFORMITY 1
LBP 1
LBP, RADICULOPATHY 1
POST LAMINECTOMY SYNDROME 1
PSEUDOARTHOSIS 1
SPINAL ARACHNOID CYST 1
SPONDYLOSIS 1

3 Disease distribution by spinal region

Based on the primary affected region (dx_level), disease is predominantly lumbar, followed by cervical and thoracic.

Primary region Patients Percent
LUMBAR 232 73.7
CERVICAL 48 15.2
THORACIC 34 10.8
Other / to review 1 0.3

In addition, 57 patients have a second spinal region documented (dx_level2) — most often thoracic

Second region Patients
THORACIC 47
LUMBAR 9
CERVICAL 1

4 Primary procedure

Lumbar fusion techniques predominate. TLPFF: Thoracolumbar PFF LPFF: Lumbar PFF LFF MIS: Lumbar FF MIS LAMI: Laminectomy

Primary procedure Patients Percent
TLPFF 76 24.1
ALIF 61 19.4
LPFF 36 11.4
XLIF 34 10.8
ACDF 28 8.9
LFF MIS 21 6.7
TPFF 20 6.3
PCFF 19 6.0
FUSION LUMBAR LATERAL POSTERIOR 15 4.8
LAMI 3 1.0
LPFF MIS 1 0.3
MIS LAMI 1 0.3

5 Summary and possible abstract angles

We have a 315-patient surgical deformity cohort spanning 2016–2023 that is predominantly lumbar and degenerative, with SPONDY as the leading diagnosis and lateral/anterior lumbar fusions (e.g., TLPFF, ALIF, XLIF) as the most common procedures.

Potential directions for a Spine Summit abstract include:

  • The multi-region (lumbar + thoracic) subgroup (57 patients) as a distinct deformity phenotype.
  • Comparison across fusion approaches — open vs. MIS vs. lateral (LFF MIS, XLIF, ALIF).
  • The deformity / kyphosis subsets, which may pair well with the radiographic and alignment fields available elsewhere in the database.

Preliminary summary generated from the working deformity database. Diagnosis and procedure labels are shown as coded in the database. Figures are descriptive and intended for internal planning.