Arthrometer Insights

PCL injury diagnosis requires more than identifying pain after trauma. In many cases, the key clinical problem is posterior knee instability, which may be subtle in the acute setting and easier to underestimate than anterior laxity. A careful history, structured examination, and appropriately selected imaging help distinguish isolated injury from combined posterolateral or multiligament patterns. […]

In some ACL-injured knees, the MRI appearance and the clinical picture do not match. A patient may have a subtle or borderline scan, yet demonstrate a clear pivot shift test, recurrent giving-way, or high-demand functional failure. That gap matters because rotational knee instability is a dynamic problem, not only a structural imaging finding. For orthopaedic

ACL injury in tennis is often discussed less than in football or skiing, yet the sport creates a distinct mix of risk through abrupt deceleration, open-stance loading, recovery steps, and occasional sliding on hard or clay courts. A tennis ACL tear may not always follow a collision. Instead, symptoms can begin during a wide forehand,

Objective knee examination has become increasingly important in modern ligament assessment because it helps translate a subjective impression of instability into measurable findings. For orthopaedic surgeons, sports physicians, physiotherapists, and researchers, this matters most when manual knee ligament tests are limited by guarding, swelling, examiner experience, or borderline injury patterns. In practice, a structured approach

post-ACL reconstruction monitoring in high-risk athletes should be planned, not improvised. For clinicians managing cutting, pivoting, or contact sport populations, a structured pathway helps distinguish expected recovery from early graft overload, persistent instability, or reinjury risk. This is especially relevant in high-risk athletes after ACL reconstruction, where return timelines, exposure load, and residual laxity may

From image to function: why anatomy alone is not enough Modern knee stability assessment cannot rely on anatomy in isolation. MRI can define fiber continuity, edema, graft appearance, bone bruising, meniscal tears, and cartilage injury, but it does not always explain why a patient still reports giving way, poor confidence on cutting, or an abnormal

ACL tear vs meniscus tear is a common but clinically important distinction in acute and subacute knee assessment. In practice, the challenge is not simply naming the injured structure. It is deciding whether the patient’s main problem is instability, locking, pain, swelling, or a combined injury, and then choosing the next diagnostic step. For clinicians

Rotational instability is not captured fully by anterior translation alone. In daily practice, pivot shift quantification helps clinicians move from a subjective impression to a more reproducible understanding of rotational knee laxity, especially after ACL injury or reconstruction. For orthopaedic surgeons, sports physicians, physiotherapists, and researchers, the challenge is not just detecting instability, but identifying