Syndesmotic ankle sprain

What it is

Your two lower leg bones, the tibia and fibula, are lashed together just above the ankle by a set of ligaments and a sheet of tissue called the syndesmosis. It has to stay tight, because the talus sits in the slot between those bones like a wedge and pushes them apart slightly on every step. When rotation forces that slot open, the binding ligaments tear. This is a completely different injury to a rolled ankle even though it happens in the same second of the same play, and it behaves differently: less swelling, less bruising, more disability, and a far longer road back.

How volleyball causes it

The setup is the same centreline collision, but the outcome branches on what the foot does. If the foot rolls under, you get a lateral sprain. If the foot instead lands flat and gets trapped on an opponent's shoe or a teammate's foot while your body keeps rotating, the foot is turned outward and the ankle is jammed into a forward bend, and that wedges the two shin bones apart. Beach and grass produce their own version, where the foot buries and grips in soft sand or catches in turf on a hard cut or block shuffle, and the leg turns while the foot cannot. Because the swelling is unimpressive, players routinely tape it and keep playing, which is why so many of these are found weeks late.

BlockingAttackingDefense

What it feels like

• Pain above the ankle joint, at the front, between the two shin bones rather than over the outside ankle knob
• Far less swelling and bruising than you would expect for how much it hurts
• Sharp pain at toe-off, so walking hurts more at push-off than at heel strike
• Pain when the foot is turned outward, or when someone squeezes the calf higher up the leg
• Pain on the plant step of the approach and on any twisting over a fixed foot

Stop and get it seen if

• You cannot bear weight on it, which raises the possibility of a fracture or a frankly unstable syndesmosis that may need surgical fixation
• Pain high on the outside of the leg near the knee, which points to a fibula fracture at the top of the bone (Maisonneuve injury). This is missed constantly because the ankle is what hurts.
• Numbness, tingling, or toes that go pale or cold
• A visible gap or widening at the front of the ankle, or the foot sitting out of line with the leg
• Pain getting worse rather than better over the first week or two, which usually means the working assumption of a simple sprain is wrong

What recovery usually looks like

Stages, not a schedule. Everyone moves through these at their own pace, and the ranges are wide because real recoveries are.

1. 1. Protect and offload

   1 to 3 weeks

   Take rotation and push-off load off the joint while the torn ligaments have a chance to knit, which usually means a boot and often crutches early on.

   • Walking flat footed in a boot is tolerable while walking barefoot is not
   • Squeezing the calf, or turning the foot outward, still reproduces pain above the ankle
   • Swelling stays modest, which is typical here and is not evidence the injury is minor

2. 2. Walking and calf loading

   2 to 6 weeks

   Get out of the boot and back to a normal walking pattern with a working push-off.

   • You can walk without the boot and without pain at the front of the ankle at toe-off
   • Rising onto the toes of the injured leg no longer pinches between the shin bones
   • Turning the foot outward against light resistance is pain free

3. 3. Rotation and impact

   4 to 12 weeks

   Reintroduce twisting, jogging, and landing, the exact loads that opened the joint in the first place.

Ready to play again when

• Hopping on the injured leg and landing with a turn, pain free
• Squeezing the calf and forcing the foot outward no longer reproduces any pain
• Full approach jump and block jump with no pain at push-off
• A full practice followed by a morning with no swelling, ache, or stiffness above the joint
• Single leg heel raise endurance matching the other side

Keeping it from coming back

This is ordinary training, so unlike the rest of this page it does tell you what to do.

• Heavy calf raises knee straight and knee bent, plus tibialis posterior work such as band inversion, because these muscles control how far the foot turns out under a loaded landing.
• Hip external rotator and glute strength, so the rotation of a landing gets absorbed up the chain instead of arriving entirely at the ankle. Split squats with a controlled trunk turn and loaded side-lying clams are the workhorses.
• Landing technique for blockers: land square with the feet under the hips, not on a twist with one foot crossing the body. Coaches can drill this by finishing every block footwork rep with a held two-foot landing.
• Make it a team habit that hitters land short of the centreline and blockers step back off the line after the block. This injury needs a trapped foot, and a trapped foot needs somebody else's shoe.
• Sand and grass specific: build up hard planting and cutting on soft surfaces gradually at the start of the season, because a foot that buries and grips is what supplies the rotation.
• Do not lean on ankle bracing here the way you would for a rolled ankle. Braces control side to side roll far better than rotation, so strength and landing mechanics are the main defence.