Ann Rehabil Med.  2018 Oct;42(5):682-689. 10.5535/arm.2018.42.5.682.

Influence of Hip Fracture on Knee Pain During Postoperative Rehabilitation

• Kim HJ
• Lee SJ
• Hyun JK
• Kim SY
• Kim TU

• KMID: 2429197
• DOI: http://doi.org/10.5535/arm.2018.42.5.682

Abstract

OBJECTIVE
To investigate whether fracture type, surgical procedure, or fracture grade affect knee pain during postoperative rehabilitation after a hip fracture.
METHODS
We conducted a retrospective case-controlled study of 139 patients during postoperative rehabilitation after surgery for hip fractures. Patients were divided into two groups: patients experiencing knee pain during the first week of postoperative rehabilitation, and patients without knee pain. We compared the types of fracture, surgical procedure, and fracture grade between the two groups.
RESULTS
We enrolled 52 patients (37.4%) with knee pain during the first weeks of postoperative rehabilitation. For type of fracture, knee pain was more common with intertrochanteric fracture than with femur neck fracture (48.8% vs. 21.1%, respectively; p=0.001). For the surgical procedure, there was no significant difference between the groups. For the fracture grade, the grades classified as unstable fractures were more common in the group of intertrochanteric fracture patients with knee pain than in those without knee pain (74.1% vs. 36.4%, respectively; p=0.002).
CONCLUSION
Intertrochanteric fracture affected knee pain after hip fracture surgery more than did femur neck fracture, particularly in unstable fractures. Furthermore, there was no difference in each fracture type according to the surgical procedure. Careful examination and management for knee pain is needed in patients with hip fracture surgery.

Keyword

Hip fractures; Postoperative complications; Knee joint; Pain

MeSH Terms

Case-Control Studies
Femoral Neck Fractures
Hip Fractures
Hip*
Humans
Knee Joint
Knee*
Postoperative Complications
Rehabilitation*
Retrospective Studies

Figure

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  Fig. 1. Proportion of patients with and without knee pain according to grade of intertrochanteric fracture. AO/OTA alphanumeric classification was used to classify intertrochanteric fractures. The proportion of patients with knee pain increases in proportion to the grade. AO/OTA, Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association.

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