Abstract
Introduction: Historically, it has been accepted that pain associated with arthritis of the hip is usually located in the groin and thigh with radiation to the anterior knee. However pain below the knee, and into the foot was not believed to be associated with arthritis of the hip. Patients complaining of thigh pain that extends below the knee are often considered to have a degenerative lumbar spine as the cause for their lower limb symptoms, and hip arthroplasty may not be offered. We examined the severity and location of pain in patients attending for arthroplasty and assessed how this altered following surgery.
Methods: 200 consecutive patients undergoing primary total hip arthroplasty completed a questionnaire regarding the location and severity of pain in the leg and also an Oxford hip score to assess functionality. These were completed approximately 4 weeks preoperatively and again at a 3-month review clinic.
Results: 57% (114/200) of patients complained of pain below their knee preoperatively. Only 9% (10/114) of these patients continued to complain of pain postoperatively, and of these patients their mean pain score decreased by 44% (9 to 5). Only 1% (2/200) of all patients complained solely of pain in the knee or more distally, and both of these had complete relief of pain 3 months postoperatively.
Conclusion: A significant number of patients with degenerative hip disease have pain below the knee. Patients who complain of pain in their back, buttock or thigh, which extends below the knee, may still benefit from total hip replacement. Careful consideration should be taken before labelling the pain as being referred from degenerative back disease.
These abstracts were prepared by Mr Peter Kay. Correspondence should be addressed to him at The Hip Centre, Wrightington Hospital, Appley Bridge, Wigan, Lancashire WN6 9EP.
