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Poor Radiological and Good Functional Long-term Outcome of Surgically Treated Scheuermann Patients
Harm C A Graat1,2, Janneke J P Schimmel3, Roel J W Hoogendoorn1
1Department of orthopaedic surgery, Sint Maartenskliniek, Ubbergen, the Netherlands.
Study Design:
Cohort study.
Objective:
To analyze long-term clinical and radiological outcomes of surgically treated Scheuermann patients.
Summary Of Background Data:
Long-term clinical and radiological outcomes of surgery for Scheuermann kyphosis are unknown. A single-center cohort of 33 consecutive, surgically treated (between 1991 and 1998) Scheuermann patients was studied.
Methods:
Clinical and radiological data of 29 surgically treated Scheuermann patients were collected (posterior approach n = 13; combined anterior-posterior procedure n = 16), after a mean follow-up of 18 years. Oswestry Disability Index (ODI) scores were measured preoperatively (PRE) and twice postoperatively: 2 to 8 years postoperative (FU 1) and 14 to 21 years postoperative (FU 2). Visual Analog Score pain, Short Form-36 (SF-36), and EQ-5d scores were recorded at FU 2 only. Radiographs were analyzed for correction, distal and proximal junctional kyphosis, and implant failures.
Results:
Mean preoperative kyphosis of the corrected levels was 76° (range 60°-105°) and decreased to a Cobb of 58°(range 30°-105°) at FU 2. Median Visual Analog Score was 2.5 points (range 0-8) and median ODI score was 12 (range 0-62) at FU 2. The ODI score at FU 1 was significantly better as compared to PRE (P < 0.001) and FU 2 (P < 0.001). Also, anterior-posterior treated group had a significantly better ODI score as compared to the posterior-only group (P = 0.023). EQ-5d scores on mobility, usual activities, and pain/discomfort were worse compared to an age-matched population control group; however, SF-36 outcome scores were comparable.Proximal junctional kyphosis was present in 53% of patients, distal junctional kyphosis did not occur, and implant failure/removal had occurred in 69% of patients. Radiological complications do not relate with the ODI, EQ-5d, and SF-36 and 72% of the patients were satisfied.
Conclusion:
Radiological results of this cohort were disappointing but did not relate to clinical outcome scores. Even lumbar pain could not prevent a high patient satisfaction and quality of life. Patients treated with a combined anterior-posterior approach tended to perform better.
Level Of Evidence:
3.
