Deep venous thrombosis after mini-posterior total hip arthroplasty in Japanese patients.

We conducted a retrospective study of the occurrence of deep venous thrombosis (DVT) following mini-posterior total hip arthroplasty (THA) in Japanese patients. From May 2004 to December 2009 mini-posterior THA was performed on 1659 cases, of whom 603 cases didn't receive anticoagulants (Group 1), 547 cases received 2.5 mg percutaneous injection of fondaparinux (a factor Xa inhibitor) daily for 7 days starting the day after surgery (Group 2), and 509 cases received 2000 IU percutaneous injection of enoxaparin (low-molecular-weight heparin) twice daily for 7 days starting the day after surgery (Group 3).

Primary repair of posterior cruciate ligament avulsion fracture: the effect of occult injury in the midsubstance on postoperative instability.

Background: In the posterior cruciate ligament avulsion fracture, posterior instability cannot be completely restored by the anatomical reduction and fixation of an avulsed fragment.

Hypothesis: The occult midsubstance injury inside the posterior cruciate ligament may affect the residual posterior instability after anatomical reduction and internal fixation of the avulsed fragment.

Study Design: Prospective comparative clinical study.

Melorheostosis with occlusion of dorsalis pedis artery.

Melorheostosis is an unusual sclerotic dysplasia of bone. The case of a 51-year-old female patient with melorheostosis and occlusion of the dorsalis pedis artery is described. Although numerous vascular anomalies have been noted in patients with melorheostosis, occlusion of the dorsalis pedis artery has not been reported previously.