| Anterior cruciate ligament reconstruction by using bioabsorbable femoral cross pins: MR imaging findings at follow-up and comparison with clinical findings. | |
| | |
MedLine Citation:
|
PMID: 20308449 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: To determine the frequency of imaging findings and complications related to bioabsorbable femoral cross pins at follow-up magnetic resonance (MR) imaging studies after anterior cruciate ligament (ACL) reconstruction and compare these MR imaging findings with clinical evaluation findings. MATERIALS AND METHODS: The institutional review board approved this retrospective study, and informed consent was waived. Follow-up MR imaging studies (average, 26 months after surgery) in 218 patients with prior ACL reconstruction were retrospectively reviewed. Cross-pin fracture, posterior transcortical breach, migration, resorption, and lateral prominence of cross pins, as well as the cross-pin angle relative to the transepicondylar line, were investigated on MR images. The clinical evaluation included Lachman, anterior drawer, and pivot shift tests, as well as assessment for joint tenderness. RESULTS: Fracture, posterior transcortical breach, migration, and lateral prominence of cross pins were excluded from analysis when at least one cross pin was completely resorbed (n = 16 patients). Forty-five fractured cross pins were seen in 35 (17%) of 202 patients. The posterior femoral cortex was breached in 57 (28%) of 202 patients. Migration of fractured pin fragments occurred in 12 (6%) of 202 patients. There was a significant relationship between fractures and posterior breach of cross pins (P = .001), as well as between cross-pin angles and fractures (P = .002). Both cross pins were completely resorbed in 12 (6%) of 218 patients (average time since surgery, 53 months; range, 8-92 months). No significant association was found between any MR imaging finding related to cross pins and clinical test findings. CONCLUSION: Fracture and posterior transcortical breach of bioabsorbable femoral cross pins, commonly seen at follow-up MR imaging studies, do not correlate with clinical findings of joint instability or pain. Posteriorly angulated cross pins and posterior transcortical breach are significantly associated with cross-pin fractures. |
| | |
Authors:
|
Ueli Studler; Lawrence M White; Ali M Naraghi; George Tomlinson; Monica Kunz; Gadi Kahn; Paul Marks |
Related Documents
:
|
3829499 - Slipped capital femoral epiphysis in southern sweden. long-term results after nailing/p... 7560029 - Clinical evaluation of crossed-pin versus lateral-pin fixation in displaced supracondyl... 7068699 - The mechanical performance of the standard hoffmann-vidal external fixation apparatus. 22103559 - Bone mass development in patients with duchenne and becker muscular dystrophies: a four... 8579019 - Evaluation and extraction of the accufix atrial j lead. 21909729 - Effects of strontium ranelate and alendronate on bone microstructure in women with oste... 6142109 - A comparison of the strength of base metal and gold solder joints. 20001589 - "in-window" craniotomy and "bridgelike" duraplasty: an alternative to decompressive hem... 9458499 - Aerobic workout and bone mass in females. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Radiology Volume: 255 ISSN: 1527-1315 ISO Abbreviation: Radiology Publication Date: 2010 Apr |
Date Detail:
|
Created Date: 2010-03-23 Completed Date: 2010-05-06 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401260 Medline TA: Radiology Country: United States |
Other Details:
|
Languages: eng Pagination: 108-16 Citation Subset: AIM; IM |
Copyright Information:
|
RSNA, 2010 |
Affiliation:
|
Department of Medical Imaging, Mount Sinai Hospital and University Health Network, University of Toronto, Toronto, Ontario, Canada. studleru@uhbs.ch |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Absorbable Implants Adolescent Adult Anterior Cruciate Ligament / injuries, surgery* Bone Nails* Chi-Square Distribution Female Femur / surgery Foreign-Body Migration / diagnosis Humans Joint Instability / diagnosis Magnetic Resonance Imaging / methods* Male Middle Aged Pain Measurement Postoperative Complications / diagnosis* Prosthesis Failure Retrospective Studies Risk Factors Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Effect of Reduced Radiation CT Protocols on the Detection of Renal Calculi.
Next Document: Functional MR Imaging or Wada Test: Which Is the Better Predictor of Individual Postoperative Memory...