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Assessing joint line positions by means of the contralateral knee: a new approach for planning knee revision surgery?
- Source :
- Knee Surgery, Sports Traumatology, Arthroscopy. 23:3244-3250
- Publication Year :
- 2014
- Publisher :
- Springer Science and Business Media LLC, 2014.
-
Abstract
- Reconstructing the natural joint line in knee revision surgery improves clinical and functional outcome but may be challenging when both cartilage and bone were removed during previous operations. Assessing joint lines (JLs) by means of bony landmarks is inadvisable because of large variations in human anatomy. Because of the inherent symmetry of the human body, we hypothesised that JLs may be directly assessed by measuring the distances from the bony landmarks to the JL of the contralateral knee by means of radiographic images. Using scaled weight-bearing radiographs in anteroposterior view of both knees, two independent observers measured the distances from the fibular head, the medial and lateral epicondyle, and the adductor tubercle to the JL. A two-sided p value of ≤0.05 was considered statistically significant. Two hundred knees of 100 patients (50 men and 50 women) were examined. For the fibular head, the mean difference between the treated and the control knee was 0.0 mm with narrow confidence limits ranging from −1.1 to 1.1. As a new assessment method, we have suggested to assess the JL by means of radiographs of the contralateral knee. The most precise parameter was found to be the distance between the fibular head and the JL. The level of arthritis, age, gender, visibility of the landmarks, and misalignment did not influence measurement accuracy. This parameter is the first tibia-related landmark for assessing the JL, which advantageously corresponds to the tibia-first technique in revision surgery. Diagnostic Study, Level II.
- Subjects :
- Adult
Male
Reoperation
musculoskeletal diseases
medicine.medical_specialty
Knee Joint
Radiography
Weight-Bearing
Joint line
Preoperative Care
Contralateral knee
medicine
Humans
Orthopedics and Sports Medicine
Lateral epicondyle
Arthroplasty, Replacement, Knee
Aged
Fibular Head
Aged, 80 and over
business.industry
Middle Aged
musculoskeletal system
Confidence interval
Surgery
Orthopedic surgery
Assessment methods
Female
Anatomic Landmarks
business
Subjects
Details
- ISSN :
- 14337347 and 09422056
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Knee Surgery, Sports Traumatology, Arthroscopy
- Accession number :
- edsair.doi.dedup.....0c5567ebc8d58822cba370cd9cbb22af