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Lumbar spinal stenosis impairs function following total knee arthroplasty
Robert Pivec1, Aaron J Johnson, Qais Naziri
1Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopaedics, Baltimore, Maryland 21215, USA.
The Journal of Knee Surgery
|January 5, 2013
Summary
Patients with lumbar spinal stenosis undergoing total knee arthroplasty (TKA) may experience less than optimal functional outcomes. While TKA relieves arthritis pain, stenosis can lead to persistent postoperative limitations.
Area of Science:
- Orthopedics
- Neurosurgery
- Geriatrics
Background:
- Lumbar spinal stenosis is a frequent cause of lower back and leg pain in elderly individuals.
- Total knee arthroplasty (TKA) is a common procedure for knee arthritis, but its outcomes in patients with coexisting lumbar spinal stenosis are not well-defined.
Purpose of the Study:
- To investigate the association between lumbar spinal stenosis and postoperative outcomes following total knee arthroplasty (TKA).
Main Methods:
- A multicenter review of TKA patients was conducted.
- 115 patients with lumbar spinal stenosis were matched with patients without stenosis based on age, gender, BMI, procedure type, and follow-up duration.
Main Results:
- Patients with lumbar spinal stenosis demonstrated significantly lower Knee Society objective and function scores compared to those without stenosis.
- No significant differences were observed in revision rates (1%) or radiographic outcomes between the two groups.
Conclusions:
- Lumbar spinal stenosis is associated with suboptimal functional outcomes after TKA, despite comparable revision and radiographic results.
- Surgeons should counsel TKA patients with lumbar spinal stenosis about potential persistent functional limitations post-surgery.
