All damage sustained by living tissue occurs in continuum. This means once cellular degradation manifests itself onto the cellular environment it can precede uninhibited. The virulence to the matrix of the supporting tissue grows as more cells are exposed to an environment to toxic for survival. In the orthopedic setting, as in the general medical setting, to identify the condition early is paramount. Unfortunately, that is not always the case. In our center, The Center for Regenerative Medicine (CRM) often times we have encountered patients with severe (osteochondral) hip damage. All joints exhibit an ability to express a unique Biomechanical marker. Expressed when the joint loading surfaces have regressed substantially in their ability to load the surfaces under physiological stresses. Previously we have described the Biomechanical marker for the shoulder neutral rotation rise test. In this article we will describe the marker for the hip identifying severe osteochondral damage. In our center (CRM) we have identified and treated successfully 10 patients afflicted with this condition. The term given to the hip Biomechanical Marker.
Prone Knee Flexion Test
Under normal hip conditions if you were to lie on your stomach and bend your knees your feet would not cross each other.
With severe hip damage the femoral head in the hip joint would lose its perfectly round dimension. When this happens the anatomical arrangement of the hip relative to the pelvic girdle and low back change.
This new abnormal functioning state produces the Biomechanical Marker. When the knees of a patient afflicted with severe damage are bent the feet will cross. The crossing of the feet suggests to the examiner the high probability of severe osteochondral damage in the hip of the foot initiating the crossing. It may be only one foot or often times both involved.
Posted by Roman Garcia RPT, staff Physical therapist at the Center for Regenerative Medicine.