Evidence map›Paper›PMID 40024945›Full record

ArticleInternational orthopaedics2025

Lunate bone excision and scaphocapitate arthrodesis in late stages of Kienböck's disease: a long-term prospective study.

Amro A Fouaad, Galal Hegazy, Mohammed Alnahas, Gamal ElSawy, Yasser Saqr, Elsayed Shaheen, Mohamed Gamal, Mohamed Nasr Akl, Ahmed Darweash

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Article in International orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Amro A FouaadAl Azhar University, Cairo, Egypt.
Galal HegazyAl Azhar University, Cairo, Egypt. glalhegazy@azhar.edu.eg.
Mohammed AlnahasAl Azhar University, Cairo, Egypt.
Gamal ElSawyAl Azhar University, Cairo, Egypt.
Yasser SaqrPortsaid University, Portsaid, Egypt.
Elsayed ShaheenAl Azhar University, Cairo, Egypt.
Mohamed GamalAl Azhar University, Cairo, Egypt.
Mohamed Nasr AklAl Azhar University, Cairo, Egypt.
Ahmed DarweashSuez University, Suez, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aims to evaluate the outcomes of scaphocapitate arthrodesis with lunate excision in patients with stage IIIB and IIIC Kienböck's disease.

methodBetween September 2013 and April 2024, 106 consecutive patients were screened, with 64 consenting to participate. Final analysis included 56 patients (32 stage IIIB and 24 stage IIIC) who underwent scaphocapitate arthrodesis with lunate excision, utilizing distal radius bone grafting stabilized by Herbert compression screws. Preoperative and postoperative assessments (6, 18, 36, and 84 months) included VAS score for pain, ROM, grip strength, MMWS, PRWE scores, and radiographic evaluations including RS angle, CHR, CUDR, and ulnar variance.

resultsThe mean operative time was 75 ± 11 min, and the average follow-up was 86 ± 2.5 months. The union rate was 91% with a mean time to union of 10 ± 2 weeks. Preoperative mean VAS scores (63 ± 4 mm) significantly decreased to 25 ± 9 mm at 6 months and 12 ± 4 mm at 36 months (p = 0.001), with a slight increase to 22 ± 5 mm at 84 months. ROM improved from 46% ± 9% of the healthy side preoperatively to 59% ± 3.2% at 36 months (p = 0.001) but slightly decreased to 58% ± 3% at 84 months. Grip strength improved from 48% ± 8% preoperatively to 89% ± 6.4% at 36 months (p = 0.001) and remained stable at 88% ± 4% at 84 months. The mean MMWS increased from 46 ± 7 to 75 ± 5 (p = 0.001), while PRWE scores decreased from 68 ± 8 to 23 ± 6 (p = 0.001). The mean RS angle decreased from 59° ± 8° preoperatively to 50° ± 3° at 36 months (p = 0.001). There was no significant change in CHR (0.44 ± 0.04 to 0.46 ± 0.03, p = 0.251), while CUDR decreased from 31 ± 3 mm to 25 ± 2 mm (p = 0.021). Ulnar variance remained stable (p = 0.325). Degenerative changes were noted in 13 patients (23%) at the RS joint, with six showing Grade I, 5 Grade II, and 1 Grade III degeneration. Additionally, 5 patients (9%) exhibited changes at the STT joint, comprising three with Grade I and 2 with Grade II degeneration.

conclusionScaphocapitate arthrodesis with lunate excision can improves pain, ROM, grip strength, and functional scores in patients with stage IIIB and IIIC Kienböck's disease. Over time, improvements in VAS scores and functional metrics were notable, though there was a slight decline in pain relief and ROM at 84 months. These changes are critical to understanding the potential degenerative complications, particularly at the RS joint, where some patients developed osteoarthritis. LEVEL OF EVIDENCE: Level II.

Indexed as

ArthrodesisCapitate BoneLunate BoneOsteonecrosisScaphoid BoneAdultAgedBone TransplantationFemaleHand StrengthHumansMaleMiddle AgedProspective StudiesRadiusRange of Motion, ArticularKienböck's diseaseLunate excisionPostoperative outcomesScaphocapitate arthrodesisWrist function

Identifiers

PMID40024945
PMCPMC12003433

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.