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Pain distribution and response to total hip arthroplasty: a prospective observational study in 113 patients with
Pang-Hsin Hsieh1, Yuhan Chang, Dave W Chen
1Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Chang Gung University, 5, Fu-Hsin St., Kweishan, Taoyuan, Taiwan, ROC.
Purpose:
The aim of this study was to investigate the pain patterns in patients with end-stage hip disease and to assess the response after total hip arthroplasty (THA).
Methods:
The pain patterns of patients undergoing THA for end-stage hip diseases were prospectively evaluated by requesting them to mark a map of body areas before and after surgery. Patients were excluded if they had coexisting pathology of the knee or spine. The pain measurements were quantified using visual analog scales, and factors that may contribute to different pain patterns were also evaluated.
Results:
Among 113 patients (113 hips) enrolled in the study, the groin, anterior thigh, buttock, anterior knee, and greater trochanter were the most common pain locations before THA. Pain over the lower back, shin, and calf areas, which were not generally considered referral pain areas from hip diseases, was present in 21.2, 7.1, and 2.7% patients, respectively. The presence of lower back pain (LBP) was statistically more common in patients with longer duration of hip symptoms. Regardless of the different pain patterns, 97.3% (110 of 113) of patients reported complete pain relief within 12 weeks after THA.
Conclusions:
The distribution of pain from end-stage hip diseases is versatile, and presence of pain in areas other than around the hip is not uncommon. LBP was more common in patients with longer duration of symptoms. THA satisfactorily resolves the pain in all areas soon after surgery.
