Zeiss J, Paley K, Murray K, Saddemi S R
Department of Radiology, Medical College of Ohio, Toledo 43699-0008, USA.
J Comput Assist Tomogr. 1995 Sep-Oct;19(5):773-6. doi: 10.1097/00004728-199509000-00014.
Bone contusions are frequently found in association with complete tears of the anterior cruciate ligament (ACL) and can be a helpful secondary sign in diagnosis. We compare the frequency, location, and significance of bone contusions in complete and partial ACL tears.
Twenty-nine patients with complete and 42 patients with incomplete tears of the ACL were examined by MRI for the presence of accompanying bone contusions within 1 month of injury.
Bone contusions were found in 72% of the complete ACL tears but in only 12% of the partial tears. Of the partial ACL tears with accompanying contusions, 80% were high grade injuries that eventually went on to complete rupture within 6 months. Only 16% of the partial ACL injuries without bone contusion progressed to complete rupture at 1-2 year follow-up. There was no difference between the bone contusions of partial and complete tears in terms of general appearance and location. They were predominantly in the lateral compartment (90%) and had a specific predilection for the mid portion of the lateral femoral condyle and the posterior portion of the lateral tibial plateau, often occurring in tandem.
Bone contusions occur with much less frequency in partial ACL tears than in complete tears but their presence in partial rupture favors a high grade tear that is likely to become complete.
骨挫伤常与前交叉韧带（ACL）完全撕裂相关，可作为诊断的有用次要征象。我们比较了ACL完全撕裂和部分撕裂中骨挫伤的发生率、位置及意义。
对29例ACL完全撕裂患者和42例ACL不完全撕裂患者在受伤后1个月内进行MRI检查，以确定是否存在伴随的骨挫伤。
72%的ACL完全撕裂患者存在骨挫伤，而ACL部分撕裂患者中仅有12%存在骨挫伤。在伴有骨挫伤的ACL部分撕裂中，80%为高级别损伤，最终在6个月内发展为完全撕裂。在1 - 2年的随访中，无骨挫伤的ACL部分损伤仅有16%进展为完全撕裂。ACL部分撕裂和完全撕裂的骨挫伤在总体外观和位置上无差异。它们主要位于外侧间室（90%），特别好发于股骨外侧髁中部和胫骨外侧平台后部，常同时出现。
ACL部分撕裂中骨挫伤的发生率远低于完全撕裂，但部分撕裂中出现骨挫伤提示可能为高级别撕裂，且很可能发展为完全撕裂。
