Camptocormia in Parkinson Disease: Systematic Review of Management Using Spine Surgery

Objective: Postural abnormalities are a debilitating symptom of Parkinson disease (PD) that may require spinal intervention. Camptocormia is a unique abnormality most seen in PD, defined by a severe forward flexion of the trunk that completely resolves when supine. The condition presents a challenge due to an undefined pathophysiology and optimal therapeutic approach in a high-risk patient population. In this study, we systematically reviewed the literature regarding the use of spine surgery for the treatment of camptocormia in PD. Methods: PubMed, Embase, Web of Science, and Cochrane Library were systematically queried for studies involving spine surgery as treatment of PD-associated camptocormia. Studies involving nonsurgical management, involving deep brain stimulation, involving noncamptocormic PD patients undergoing surgery, or were out of scope were excluded. Results: The search resulted in 5 studies, with a total of 19 patients with PD with camptocormia who underwent spine surgery (73.7% women). The mean age was 69.5 years (range, 59–83), and the mean PD duration was 69.5 months (range, 36–84). Of 19 patients, 11 required surgical revision (57.9%), with an average of 0.68 revisions per patient (range, 0–2). Radiographic and patient-reported outcomes were inconsistently reported yet showed improvement. Ultimately, 18 patients were reported to have positive outcomes. Conclusions: Despite an increased risk of complication and revision that is inherent to patients with PD, spine surgery has been proven as a reasonable alternative that should be prospectively studied further because 18 of 19 patients had favorable outcomes.