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Injuries due to dog bites are a common occurrence and are mostly trivial. Severe dog bite injuries requiring hospitalization and complex reconstructive procedures are more common in children. We present the case of a five year old child with popliteal artery thrombosis and compound Posterior Cruciate ligament injury due to a dog bite. The child was managed by immediate thrombectomy, meticulous debridement and knee spanning external fixation followed by Skin Grafting. At one year post surgery range of motion was 10–110°, with no distal neurovascular deficit and no sign of instability.

Infection after arthroplasty is disastrous both for the patient and surgeon. Infection by certain micro-organisms have additional important systemic implications. Streptococcus galloyticusis one such organism which has been implicated in colon carcinoma. We report a case of S. gallolyticusinfection of a total knee prosthesis implant in a 72-year-old female who was managed successfully by two-stage revision. A thorough work-up did not show any evidence of gastro-intestinal malignancy, but nonspecific colitis was present on biopsy.