The prone transpsoas technique: preliminary radiographic results of a multicenter experience

• Published in: European spine journal 2021, Vol.30 (1), p.108-113
• Main Authors: Pimenta, Luiz, Amaral, Rodrigo, Taylor, William, Tohmeh, Antoine, Pokorny, Gabriel, Rodrigues, Raquel, Arnoni, Daniel, Guirelli, Thyago, Batista, Matheus
• Format: Article
• Language: English
• Subjects: Medicine; Medicine & Public Health; Neurosurgery; Original Article; Surgery; Surgical Orthopedics
• ISSN: 0940-6719; 1432-0932
• DOI: 10.1007/s00586-020-06471-y

Introduction The lateral lumbar interbody fusion (LLIF) is a safe and effective technique to treat a vast range of lumbar disorders. However, the technique is also burdened by some problems. A new approach to the lateral lumbar interbody fusion was devised to solve or reduce some of the problems regarding the lateral approach. Its principal difference from the standard LLIF relies on positioning the patient in a prone decubitus, which might lead to an increase in the intradiscal lordosis. Methods A retrospective, multicentric, non-randomized study to evaluate segmental and regional lordosis following prone transpsoas (PTP) approach to LLIF. All patients undergoing prone transpsoas surgery at the involved institutions were included. Patients with low-quality images not allowing the measurements of the required spinopelvic parameters were excluded. Measurements included pre- and postoperative index-level segmental lordosis, lumbar lordosis, pelvic incidence, and pelvic tilt. Results Thirty-two (32) patients were included in the study, in which 23 underwent single-level, six (6) underwent two-level, Two (2) underwent three-level, and one underwent four-level PTP. Mean index level segmental lordosis increased from 8.7° to 14.8°( p