The Borderline Hip in a Young Laborer
A 34-year-old roofer presents with 2 years of right groin pain that worsens with deep squatting and prolonged standing. He has no night pain and no history of childhood hip disease. Examination shows painful flexion/internal rotation with a positive anterior impingement sign; abduction strength is 5/5. Radiographs show a lateral center-edge angle of 22 degrees, a Tönnis angle of 12 degrees, an alpha angle of 68 degrees on the frog-leg view, and no joint space narrowing (Tönnis grade 0). MRI shows a labral tear anterosuperiorly and no cartilage delamination on the acetabular side. He works 10-hour shifts carrying loads up ladders and cannot afford prolonged protected weight-bearing. He asks whether arthroscopy will let him return to roofing.
1. How do you weigh the radiographic findings and occupational demands in deciding between hip arthroscopy, a combined procedure, or nonoperative care?
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The findings are mixed: a borderline dysplastic acetabulum (LCEA 22°) coexists with cam morphology (alpha 68°) and an anterosuperior labral tear. Borderline dysplasia raises the risk of failure after isolated arthroscopic cam resection and labral repair because the labrum is load-bearing in a shallow socket; unaddressed instability can accelerate cartilage loss. However, the joint space is preserved and there is no acetabular cartilage delamination, which favors a repairable situation.
In a young laborer whose job involves loaded, end-range hip positions, the decision hinges on whether the dysplasia is functionally significant. Options:
- Nonoperative trial (activity modification, targeted strengthening) - reasonable first step given no advanced arthritis, but his occupation makes compliance hard and symptoms are chronic.
- Arthroscopy with labral repair, cam resection, and possible capsular plication - addresses the tear and impingement but risks failure if the shallow socket is the primary driver.
- Combined arthroscopy with periacetabular osteotomy - reserved for clear symptomatic instability/dysplasia; more morbidity and a longer protected weight-bearing period incompatible with his stated constraints.
The judgment call is that an LCEA of 22° is borderline, not definitive dysplasia, and with preserved joint space and a repairable tear, arthroscopy with careful capsular management is defensible - but the patient must understand the higher reoperation risk and the realistic timeline before returning to ladder work.
2. What specific findings at the time of arthroscopy would change your intraoperative plan, and how do you counsel him about return to roofing?
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Intraoperative decision points:
- Acetabular cartilage status: if there is full-thickness cartilage loss or delamination over the weight-bearing zone, debridement/repair has a poor prognosis and conversion to a more definitive reconstructive or osteotomy approach should be considered.
- Labral quality: a repairable labrum is preserved and repaired; a degenerate, nonviable labrum may require debridement, which worsens outcomes in a borderline socket.
- Cam resection adequacy: dynamic examination under fluoroscopy after resection confirms impingement relief without over-resection that could destabilize the femoral head-neck junction.
- Capsular closure: in a borderline dysplastic hip, a robust capsular closure/plication is important to avoid iatrogenic instability.
Counseling: arthroscopy is not a quick fix. Expect crutches and protected weight-bearing for several weeks, a graduated strengthening program, and return to unrestricted ladder work typically at 4–6 months, often longer. Because of the borderline dysplasia, there is a meaningful chance of persistent symptoms or need for further surgery. Document the shared decision, including his occupational constraints, so expectations are explicit.