Back to Search
Start Over
The influence of tibial resection on the PCL in PCL-retaining total knee arthroplasty: A clinical and cadaveric study
- Source :
- Journal of Orthopaedic Science. 21:798-803
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Background The influence of tibial resection on the joint gap and on stability against posterior laxity in posterior cruciate ligament–retaining total knee arthroplasty (CR-TKA) remains unclear. In addition, there are no detailed reports regarding how much of the tibial attachment of the posterior cruciate ligament (PCL) is preserved during tibial resection. Our goals were to evaluate the influence of tibial resection on the intraoperative joint gap and on postoperative anteroposterior stability in a clinical population, and to assess the preserved area of the tibial PCL attachment using cadaveric knees. Methods In 20 consecutive patients, the joint gaps before and after tibial resection at 90° flexion and full extension were analyzed during CR-TKA, and anteroposterior stability was evaluated postoperatively. In 11 cadaveric knees, tibial resection with a thickness of 8, 10, 12, or 14 mm and a posterior slope of 3, 4, 5, 6, or 7° was simulated using computed tomography images, and the percentage of the preserved area of the attachment was calculated. Results The flexion gaps before and after tibial resection were 18.1 ± 1.9 mm and 18.4 ± 2.2 mm, respectively, with no statistically significant difference (p = 0.08). Similarly, the extension gap did not increase significantly before and after tibial resection (20.8 ± 2.5 mm and 21.0 ± 2.6 mm; p = 0.45). All knees maintained anteroposterior stability at the follow-up period (32.0 ± 1.9 months). The posterior slope of the tibial resection was 5.9 ± 1.4°, and the thickness of the lateral tibial resection was 10.4 ± 1.1 mm. The cutoffs to preserve more than 50% of the attachment were 10-mm thickness and 5° slope. Conclusions Our results showed that tibial resection did not influence the intraoperative joint gap or postoperative anteroposterior stability. However, our analysis demonstrated that increased amounts of tibial resection led to considerable damage to the attachment.
- Subjects :
- Joint Instability
Male
musculoskeletal diseases
medicine.medical_specialty
medicine.medical_treatment
Population
Total knee arthroplasty
Osteoarthritis
Risk Assessment
Cohort Studies
03 medical and health sciences
0302 clinical medicine
Cadaver
medicine
Humans
Orthopedics and Sports Medicine
Prospective Studies
Range of Motion, Articular
Arthroplasty, Replacement, Knee
education
Aged
030222 orthopedics
education.field_of_study
Tibia
business.industry
030229 sport sciences
Middle Aged
Osteoarthritis, Knee
musculoskeletal system
medicine.disease
Arthroplasty
Biomechanical Phenomena
Osteotomy
Surgery
Treatment Outcome
medicine.anatomical_structure
Posterior cruciate ligament
Multivariate Analysis
Regression Analysis
Female
Posterior Cruciate Ligament
Tomography, X-Ray Computed
Cadaveric spasm
Range of motion
business
Organ Sparing Treatments
Follow-Up Studies
Subjects
Details
- ISSN :
- 09492658
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Journal of Orthopaedic Science
- Accession number :
- edsair.doi.dedup.....1d77da0b0240fd0ffa8ad9db456aec35