Study Finds Patients with Prior Hip Replacement Surgery Have Worse Outcomes with Subsequent Back Surgery
Swedish researchers have concluded that patients who had previously undergone total hip replacement surgery experienced less reduction of pain one year after low back surgery compared to patients with no prior total hip replacement. Their findings were recently presented at an orthopedic conference in Vienna.
Researchers reviewed the Swedish Spine Register and the Swedish Hip Arthroplasty Register to extract demographic and surgical data, along with patient-reported outcome measures, for patients who underwent low back surgery or total hip replacement for degenerative spine or hip disorders. The researchers combined data from the two registries. The two groups were directly matched on age, sex, year of surgery, spinal stenosis, type of surgery and preoperative patient reported outcome scores. After selection and matching to a corresponding control patient, the researchers analyzed the differences in patient reported outcome scores in the study group vs. the controls. Oneyear patient reported outcomes after low back surgery were also assessed.
“The combination of degenerative diseases of the hip and spine known as the ‘hip-spine syndrome’ are common encounters in patients eligible for total hip replacement and low back surgery,” Ted Eneqvist, MD, of Gothenburg, Sweden, told Orthopaedics Today Europe. “This study describes the patient-reported outcome measures following low back surgery in patients with and without an earlier total hip replacement, and shows that the patients with an earlier hip replacement have a moderately worse outcome following low back surgery.”