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Table 4 Case Series Patient Details: is in Landscape page layout, and has been uploaded separately

From: Mid-term outcomes of arthroscopic-assisted Core decompression of Precollapse osteonecrosis of femoral head—minimum of 5 year follow-up

Patient Hip Age Range
(yr)
Gender Laterality Preop Ficat-Alret
Staging
Mechanical Symptoms Kerboul Angle: Arthroscopy Findings Arthroscopy Procedure Postop VAS Score Complications
Major/Minor
Conversion to THA Time from Arthroscopy to THA (mo)
1 1 40—45 M R IIb Popping 80.2° Cartilage Wear, Synovitis Microfracture, Synovectomy 1 −−/−− Yes 7
2 (BL) 2 30—35 M R IIa 101.7° Chondral Defect, Labral Tear Labral Debridement 1 −−/−−
  3 30—35 M L I 154.6° Cartilage Wear, Labral Tear Labral Debridement 1 −−/−−
3 4 40—45 M L IIa 96.6° Cam Lesion, Pincer Lesion, Labral Tear Femoral and Acetabular Osteoplasty, Labral Repair 1 −−/−− Yes 33
4 5 15—20 M L I Popping 80.9° Pincer Lesion, Labral Tear Acetabular Osteoplasty, Labral Repair 0 −−/−−  
5 6 40—45 F L IIa 107.5° 0 −−/−−
6 (BL) 7 46—50 M R IIb 108.0° Cartilage Wear, Synovitis Microfracture, Synovectomy 1 −−/−− Yes 23
  8 46—50 M L IIb 176.5° 1 −−/−− Yes 25
7 (BL) 9 30—35 M L I Clicking 104.2° Cartilage Wear, Chondral Defect Microfracture 1 −−/−−
  10 30—35 M R IIa Clicking 106.1° Cartilage Wear Microfracture 1 −−/−−
8 11 36—40 M L IIb 187.0° Chondral defect Microfracture 1 −−/−− Yes 25
  1. Age Range, instead of specific age, is provided to help ensure patient confidentiality
  2. BL Bilateral
  3. Gender: M Male, F Female
  4. Laterality: L Left, R Right
  5. Kerboul Angle: combined necrotic angle or summation of angle of necrotic area seen on AP and lateral radiographs; small ≤160°, medium: 161–199°, large ≥200°
  6. Major complications: sub-trochanteric fracture, violation of articular cartilage, extra-articular fluid extravasation, hip dislocation, thromboembolism, and septic joint
  7. Minor complications: adhesions, neurapraxia, broken instrumentation, superficial wound infection, and heterotopic ossification