B L van Meer1, J H Waarsing2, W A van Eijsden2, D E Meuffels2, E R A van Arkel3, J A N Verhaar2, S M A Bierma-Zeinstra4, M Reijman2. 1. Department of Orthopedic Surgery, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. Electronic address: b.vanmeer@erasmusmc.nl. 2. Department of Orthopedic Surgery, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. 3. Department of Orthopedic Surgery, Medical Center Haaglanden, The Hague, The Netherlands. 4. Department of Orthopedic Surgery, Erasmus MC, University Medical Center, Rotterdam, The Netherlands; Department of General Practice, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
Abstract
OBJECTIVE: The pathophysiology of anterior cruciate ligament (ACL) rupture leading to knee osteoarthritis (OA) remains largely unknown. It seems that bone loss occurs after ACL rupture. The purpose of our study was to determine bone mineral density (BMD) changes in the knee after ACL rupture during 2-year follow-up period and to compare BMD changes between the injured and healthy contralateral knee. DESIGN: Patients were included in an observational prospective follow-up study within 6 months after ACL trauma and evaluated for 2 years. Patients were treated operatively or non-operatively. At baseline and at the one- and 2-year follow-ups, BMD was measured in six regions of the tibia and femur for both knees (medial, central, lateral) using a Dual-energy X-ray Absorptiometry (DXA) scanner. RESULTS: One hundred forty-one patients were included, with the following characteristics: 66% were male, median age at baseline was 25.3 (inter-quartile range 11.3) years, and 63% were treated operatively. After 1 year, BMD was significantly lower in all regions of the injured knee of the operatively treated patients compared to baseline. After 2 years, BMD was significantly increased, but remained lower than the baseline levels. In all regions for all measurements, the mean BMD was significantly lower in the injured knee than in the healthy contralateral knee. CONCLUSIONS: During a 2-year follow-up period after ACL rupture, the BMD level in the injured knee was found to be lower than in the healthy contralateral knee. In operatively treated patients, the BMD decreased in the first year and increased in the second follow-up year.
OBJECTIVE: The pathophysiology of anterior cruciate ligament (ACL) rupture leading to knee osteoarthritis (OA) remains largely unknown. It seems that bone loss occurs after ACL rupture. The purpose of our study was to determine bone mineral density (BMD) changes in the knee after ACL rupture during 2-year follow-up period and to compare BMD changes between the injured and healthy contralateral knee. DESIGN:Patients were included in an observational prospective follow-up study within 6 months after ACL trauma and evaluated for 2 years. Patients were treated operatively or non-operatively. At baseline and at the one- and 2-year follow-ups, BMD was measured in six regions of the tibia and femur for both knees (medial, central, lateral) using a Dual-energy X-ray Absorptiometry (DXA) scanner. RESULTS: One hundred forty-one patients were included, with the following characteristics: 66% were male, median age at baseline was 25.3 (inter-quartile range 11.3) years, and 63% were treated operatively. After 1 year, BMD was significantly lower in all regions of the injured knee of the operatively treated patients compared to baseline. After 2 years, BMD was significantly increased, but remained lower than the baseline levels. In all regions for all measurements, the mean BMD was significantly lower in the injured knee than in the healthy contralateral knee. CONCLUSIONS: During a 2-year follow-up period after ACL rupture, the BMD level in the injured knee was found to be lower than in the healthy contralateral knee. In operatively treated patients, the BMD decreased in the first year and increased in the second follow-up year.
Authors: John D King; Grant Rowland; Alejandro G Villasante Tezanos; James Warwick; Virginia B Kraus; Christian Lattermann; Cale A Jacobs Journal: Cartilage Date: 2018-07-22 Impact factor: 4.634
Authors: Coline Haxaire; Narine Hakobyan; Tania Pannellini; Camila Carballo; David McIlwain; Tak W Mak; Scott Rodeo; Suchitra Acharya; Daniel Li; Jackie Szymonifka; Xiangqian Song; Sébastien Monette; Alok Srivastava; Jane E Salmon; Carl P Blobel Journal: Blood Date: 2018-05-18 Impact factor: 22.113
Authors: Daniella M Patton; Danielle N Ochocki; Colin T Martin; Michael Casden; Karl J Jepsen; James A Ashton-Miller; Edward M Wojtys; Stephen H Schlecht Journal: J Orthop Res Date: 2021-07-11 Impact factor: 3.494