In “bounce home” test of knee joint, end feel is described as all, EXCEPT:
**Core Concept**
The "bounce home" test, also known as the "thigh squeeze" test, is used to assess the integrity of the anterior cruciate ligament (ACL) in the knee joint. It involves squeezing the thigh muscles to check for a firm end feel, which indicates a stable ACL.
**Why the Correct Answer is Right**
A firm end feel during the "bounce home" test is due to the stabilization provided by the ACL, which prevents excessive movement of the tibia relative to the femur. When the ACL is intact, the femur glides smoothly over the tibia, resulting in a firm end feel. This is because the ACL provides a stable, bony-to-bony contact between the femoral condyles and the tibial plateau.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a "hard" end feel is not a typical description of the "bounce home" test. The correct term is "firm," which indicates a stable ACL.
**Option B:** This option is incorrect because a "soft" end feel is not a characteristic of the "bounce home" test. A soft end feel might be indicative of a lax ACL or other knee joint instability.
**Option C:** This option is incorrect because a "springy" end feel is not a typical description of the "bounce home" test. A springy end feel might be indicative of a hypermobile joint or other knee joint instability.
**Clinical Pearl / High-Yield Fact**
In addition to the "bounce home" test, other clinical tests that assess ACL integrity include the Lachman test and the pivot shift test.
**Correct Answer: D.**