A rare case of vastus intermedius tear in a middle-aged gentleman: a case report

Although quadriceps strain is fairly common, reports of isolated vastus intermedius tears are rare. We highlight the case of a middle-aged gentleman who sustained this injury when he slipped while bending down, with a 'pop' sound. Subsequently, he experienced pain, swelling, and reduced knee flexion, but was able to extend his knee fully. A plain radiograph revealed an non-displaced chip avulsion fracture of the patella, which was immobilized with an above-knee back slab. A sonogram revealed a grade 2 tear. During the acute stage, we treated the patient conservatively with progressive rehabilitation and physiotherapy. Six weeks later, the patient reported a good recovery. We admittedly considered platelet-rich plasma as an adjunct to augment the healing process of the avulsed tendon if recovery was unsatisfactory. In conclusion, vastus intermedius strains can be successfully treated conservatively with timely rehabilitation, paying attention to progress along the healing process as demonstrated in this case.