Anterior Knee Pain After Total Hip Arthroplasty in Developmental Dysplasia.
Summary of "Anterior Knee Pain After Total Hip Arthroplasty in Developmental Dysplasia."
Little has been reported on knee pain after total hip arthroplasty (THA). The purpose of this study was to investigate the incidence and mechanism of knee pain after THA. Two hundred fifty-two patients with hip dysplasia were clinically and radiographically assessed for knee pain before and after THA. Incidences of knee pain and patellofemoral alignment were analyzed with reference to postoperative change in leg length, femoral anteversion, and the femoral offset. Anterior knee pain was present in 16 patients (7.3%). Lateral patellar tilt was increased in all patients with knee pain and significantly larger compared to that seen in patients without knee pain. The increased patellar tilt disappeared within 3 months, but symptoms in 4 patients persisted for more than 3 months. The patellar tilt was significantly related to the amount of leg lengthening. This study demonstrates that THA influences the patellofemoral joint via leg lengthening and causes anterior knee pain.
Department of Orthopaedic Surgery, Hanwa Joint Reconstruction Center Hospital, Naka-ku Sakai, Japan.
This article was published in the following journal.
Name: The Journal of arthroplasty
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20851568
- DOI: http://dx.doi.org/10.1016/j.arth.2010.07.007
Medical and Biotech [MESH] Definitions
Arthroplasty, Replacement, Knee
Replacement of the knee joint.
Fibrous Dysplasia Of Bone
A disease of bone marked by thinning of the cortex and replacement of bone marrow by gritty fibrous tissue containing bony spicules, producing pain, disability, and gradually increasing deformity. Only one bone may be involved (FIBROUS DYSPLASIA, MONOSTOTIC) or several (FIBROUS DYSPLASIA, POLYOSTOTIC). (From Dorland, 28th ed)
Partial or total replacement of a joint.
Surgical reconstruction of a joint to relieve pain or restore motion.
The flat, triangular bone situated at the anterior part of the KNEE.
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