Spondylolisthesis

Three similar words, three different things:

This is one condition where imaging does the confirming. Your doctor will ask about your symptoms and examine you, then may recommend an X-ray of your lower back, which shows whether a vertebra is out of place ¹. A side-on X-ray shows how far it has slipped ⁶.

In young people, the examination looks for tenderness, limited movement, muscle spasm and weakness, and at posture and walking, because tight hamstrings can cause a stiff-legged walk. The doctor will also ask about sport ⁶. A CT scan gives more detail but more radiation, so it isn't always ordered. An MRI can show whether the slipped vertebra is pressing on nerve roots, and can pick up an injury to the bone before an X-ray would ⁶.

The plan depends on which route got you here and what you need to get back to.

Now the evidence. A review of athletes with spondylolysis found 92% returned to sport after non-surgical care, 89% at their previous level, at an average of about 4.6 months ³. Encouraging, but it comes from low-quality studies and covers the stress fracture, not an established slip ³. An overview of this research rates its quality low to critically low, and calls the evidence on which treatment is better "largely limited and inconclusive" ⁴. An Australian review agreed: the evidence "does not allow any conclusions to be drawn" ⁵. On timing, a review of 196 young athletes' records found those referred to physio earlier got back to full activity about 25 days sooner, with no more setbacks ¹⁰.

Whether your slip began as a teenage stress fracture or as adult wear, treatment follows The Well Motion Recovery Path™. The vertebra doesn't move back, so you move up a phase on what your back can do, not on a date or a scan.

• Reset: settling the flare. You step back from what aggravates it and stay as active as symptoms allow ¹, with gentle manual therapy for comfort. Expect the ache to return if you test it too early. We move you on once standing and walking are settled enough to start loading.
• Rebuild: the longest phase. Deep trunk and hip strengthening through exercise prescription and conditioning, with hamstring and hip-flexor stretching ^1,2. Expect slow gains and the odd flare as the load goes up. We move you on when your back does what your daily tasks ask of it.
• Return: for a young athlete, a graded return to sport with our sports physiotherapy team, judged on how you move and cope ⁹. For adults, standing, walking and working for longer. You leave with a trunk program to keep doing.

How long it usually takes. Athletes with the stress fracture returned to sport at an average of about 4.6 months, in low-quality studies ³. An age-related slip doesn't heal. In one registry of 50 adults already eligible for surgery, 36% went on to have it during 2 years of follow-up because non-surgical care hadn't helped enough ¹³. That decision sits with your GP or specialist.

Flare-up prevention hasn't been trialled for spondylolisthesis as such, but two pieces of research come close:

• Keep the deep trunk exercises going. In a randomised trial of 44 adults with long-standing back pain and a pars fracture or a slip, 10 weeks of exercises training the deep abdominal and spinal muscles reduced pain and disability, and the gain was still there 30 months later. The comparison group, on their usual treatment, didn't change ⁷.
• Young bowlers: count bowling days. Among 65 junior elite fast bowlers followed for a season, the stress fracture that can come before a slip went with bowling on a higher share of training days and taking a shorter break from bowling. The number of balls bowled wasn't linked ⁸.
• Know the growth-spurt window. In children and teenagers, slipping most often happens during rapid growth ⁶. Check-ups and periodic X-rays show whether the vertebra is moving ⁶.
• Ease off what stresses the lower back. A spell away from those activities often improves symptoms ⁶. Your physio can tell you which ones, and for how long ¹.